NEWS

Jython NEWS


The features new in a given version are listed at the head of the section for
the final release of that version. Bugs fixed are listed under the next release
(frequently a beta) after they were fixed.

For more details, three sources are available according to type:
 - [ n ], please see old bug tracker at https://bugs.jython.org.
 - [ GH-n ], please see https://github.com/jython/jython.
 - [ FM-n ], please see https://github.com/jython/frozen-mirror.

==============================================================================
Jython 2.7.5
==============================================================================

New Features

    - Servlet support is updated to use the jakarta namespace. As part of this
      change, the classes org.python.util.PyServlet, org.python.util.PyFilter
      and org.python.util.PyServletInitializer have been relocated to a new
      package org.python.servlet. Users should double-check that this change is
      adjusted in their config if necessary.
      The relocation allows adding the old classes (with javax.servlet imports)
      to the classpath on top of jython.jar without name conflict. In many cases
      this should suffice to retain workability of a legacy setup if needed.

    - Upgrade of jffi to 1.3.14 eliminates the need for sun.misc.Unsafe, which is
      deprecated for removal in Java 26. See https://github.com/jnr/jffi/issues/165

Jython 2.7.5a1 Bugs fixed
    - [ GH-382 ] Java EE Servlet Namespace Has Been Changed From javax.servlet to jakarta.servlet
    - [ GH-84 ] PyServlet Will Need To Use The jakarta.servlet Namespace #84


==============================================================================
Jython 2.7.4
==============================================================================

New Features

    - When building a modular application or library, the jython-slim JAR may
      be placed on the *module* path [GH-325]. It will export its usual
      packages in an automatic module org.python.jython2. Application build
      tools that create a run script will generally add the dependencies of
      Jython to the module path automatically. The developer may have to add
      (via the build script) --add-modules ALL-MODULE-PATH to the java command
      to ensure that these dependencies are resolved.

    - The jython-standalone JAR (module org.python.jython2.standalone) may
      also be used. Many shaded (and some unshaded) dependencies are then
      duplicated in its module, which can be a problem. It may be necessary to
      --add-modules ALL-DEFAULT to ensure JDK classes are resolved.

Jython 2.7.4 is unchanged from 2.7.4rc1

Jython 2.7.4rc1 Bugs fixed
    - [ GH-344 ] Updated ucnhash.dat to Unicode 15.1.
    - [ GH-343 ] Export xml.parsers and xml.etree in xml.__all__.
    - [ GH-342 ] Update multiple JARs to latest available.
    - [ GH-331 ] Catch IndexError possible when accessing sys.argv.

Jython 2.7.4b2 Feature added
    - [ GH-325 ] Upward compatibility to Java 9 Modularity

Jython 2.7.4b1 Bugs fixed
    - [ GH-316 ] Clash over META-INF in shaded JARs
    - [ GH-310 ] CVE-2024-25710 and CVE-2024-26308 (commons-compress)
    - [ GH-304 ] from java import * not working in Java 21
    - [ GH-302 ] Interactive interpreter awaits input instead of raising syntax error
    - [ GH-298 ] Keep better accounts of contribution and CLA
    - [ GH-288 ] Build fails when using modules (duplicate org.w3c from JARs)
    - [ GH-281 ] Invoking the wrong overloaded Java constructor
    - [ GH-280 ] LineNumberTable deprecated for removal in 2.6 still there
    - [ GH-277 ] Argument coercion fails for Java interface with default methods
    - [ GH-272 ] GlobalRef.createReaperThreadIfAbsent produces IllegalMonitorStateException
    - [ GH-269 ] Upgrade Google Guava to 32.0.1 (CVE-2023-2976)
    - [ GH-264 ] Create a security policy (changes on GitHub only)
    - [ GH-254 ] Regression in socket.socket.sendall for sending Unicode
    - [ GH-247 ] PySystemStateTest fails on Mac
    - [ GH-245 ] Document download/binaries location
    - [ GH-238 ] Using == to compare strings in sys
    - [ GH-223 ] JPasswordField no longer works due to 'bullet' echo char
    - [ GH-221 ] Incorrect method precedence with overloading and variable arity
    - [ GH-204 ] IllegalArgumentException: where char method returns non-byte value


==============================================================================
Jython 2.7.3
==============================================================================

New Features

    - The jython command respects the PYTHONDONTWRITEBYTECODE environment
      variable (GH-128).

    - Under PR GH-101, the matching of sequence arguments to the parameters of
      Java methods is improved (and in constructors under GH-201). A Java
      varargs parameter does not match a final sequence in the call if an array
      parameter could do so. (Thanks Peter Holloway.)

    - array.array itemsize of unsigned types is now the same as their signed
      counterparts, where previously it was mostly double. Internal
      representations have changed. Anomalies have been eliminated between
      itemsize and the serialisation (tostring() etc.) for unsigned types, and
      in the range of values accepted in different contexts. The size of type
      'u' (unicode character) is 4 on all platforms. Client code that was
      working around these anomalies may have to change. Overall, the
      experience should be closer to that with CPython.

    - We no longer aspire to compile Jython with Java 7. (We may use Java 8
      features.)

    - The project has moved its home to GitHub (twice), and invites issue
      reports there (not at bugs.jython.org).


Jython 2.7.3
    The release is the same as the rc1 (apart from the version number). 

Jython 2.7.3rc1 Bugs fixed
    - [ GH-201 ] Support vararg constructors

Jython 2.7.3b1 Bugs fixed
    - [ GH-192 ] PyString with non-byte value in formatting of collections
    - [ GH-183 ] Console messages do not reach root logger (bjo 2896)
    - [ GH-178 ] Update icu4j JAR to 71.1
    - [ GH-177 ] Update Ant to 1.10.12 (Gradle build) (CVE-2020-1945, 2021-36374)
    - [ GH-160 ] Improve context of "Cannot create PyString with non-byte value"
    - [ GH-159 ] Non-byte PyString error during initialisation in Turkish locale
    - [ GH-158 ] Upgrade Bouncy Castle to 1.71
    - [ GH-157 ] Upgrade ASM to 9.3
    - [ GH-156 ] Replace custom SHA224 digest with Java's
    - [ GH-151 ] Upgrade Apache Xerces to 2.12.2 (CVE-2022-23437)
    - [ GH-150 ] Upgrade Netty to 4.1.73 (various CVEs)
    - [ GH-138 ] Upgrade Guava to 31.0.1 (CVE-2020-8908)
    - [ GH-139 ] Make gradlew executable on Unix/Mac
    - [ GH-136 ] Use full path of cmd.exe (CVE-2019-17664)
    - [ GH-129 ] Only attempt to open source/bytecode if readable (GH-93)
    - [ GH-128 ] Support PYTHONDONTWRITEBYTECODE environment variable
    - [ GH-125 ] Launch fails on Mac OS Big Sur (MacOS 11) (GH-172)
    - [ GH-119 ] array.array itemsize and serialisation anomalies for unsigned types
    - [ GH-122 ] Upgrade Apache commons-compress to 1.21
    - [ GH-105 ] from java.util import * (etc.) not working in JDK 14+ (bjo 2792)
    - [ GH-102 ] Fix CRC32.update calls in zlib.py
    - [ GH-101 ] Improve boxing of arguments to vararg methods
    - [ GH-98 ] CVE-2019-9740: CRLF injection by url parameter
    - [ GH-97 ] Failures in SNI support affecting pip
    - [ GH-93 ] Permissions problems with compiled source files ($py.class)
    - [ 2892 ] from __future__ import print_function doesn't work interactively (GH-81)
    - [ GH-77 ] Broken AST adapter
    - [ GH-74 ] Clarify license position in relation to zxJDBC.
    - [ GH-57 ] JavaWebStart compatibility broken
    - [ GH-35 ] Travis CI on JDKs 8, 11, 13 and add Windows to OSes
    - [ GH-50 ] (First) migration from Mercurial corrupted project history
    - [ GH-49 ] Update Darwin jffi library dependency
    - [ GH-27 ] -Q new always fails
    - [ GH-12 ] Test classes in distributed artifacts
    - [ GH-4 ] Swap from Mercurial to Git as our SCM tool
    - [ GH-2 ] Transfer closed-fixed issues in NEWS from frozen-mirror
    - [ 2924 ] module-info.class in root of JAR causes problems (also GH-54?)
    - [ 2918 ] slim jar: missing resource file for zxJDBC (also GH-187)
    - [ 2892 ] Migrate from hg.python.org to GitHub


==============================================================================
Jython 2.7.2
==============================================================================

  New Features
    - The main program behaves more like CPython in many small ways, including
      a more correct treatment of the -i option. This simplifies support, and
      may also make it unnecessary for users to work around differences from
      CPython.
    - python.startup registry property (and JYTHONSTARTUP environment variable)
      added.
    - Only the Jython command (class org.python.util.jython) now reads the
      environment variable JYTHONPATH, not the core runtime, and it respects
      the -E option (ignore environment). This change is for consistency with
      CPython and with our handling of other environment variables. A pure Java
      application that creates its own interpreter may use the system or
      registry key "python.path" to add to sys.path, as documented.
    - We no longer recommend overriding toString in PyObject sub-classes as a
      way of defining string forms. Override __repr__, and if necessary __str__,
      as is usual in Python. We recommend toString should return the same as
      __str__ (or __unicode__).
    - Experimentally, we use Gradle to build a JAR and POM that may be cited as
      a dependency by other projects. The Jython project would like to know if
      this is being done suitably for downstream use.
    - The registry setting (or Java property) "python.verbose", and direct use
      of the global org.python.core.Options.verbose are DEPRECATED: use a Java
      logging properties file instead. Console messages are now produced via
      java.util.logging (JUL), and the logger "org.python" or its descendants.
      The jython command configures a ConsoleLogger for "org.python" and by
      default a format for messages generally similar to that in v2.7.1,
      preceded by the logger name and JUL severity. The volume of messages is
      controlled by your logging preferences, but by default is unchanged from
      v2.7.1. Each -v option on the command line makes the logging one step
      finer on the JUL scale. Error messages from Python and stack traces are
      unaffected. When embedded in your application, Jython makes no logging
      configuration changes: messages from the "org.python" name space merge
      with those of your application.
    - There is much improved support for locale, but as a backward-incompatible
      change, it is provided as an opt-in. Define property
      python.locale.control=settable on the command line or via the Jython
      registry, to enable. This  may become the default in a later version.
    - The default location of the Jython package cache has moved from the
      installation directory to the current working directory and is called
      ".jython_cache". Previously, Jython installed system-wide either exposed
      the cache as world read-write (a security risk) or disabled it.
    - BouncyCastle SSL support is incomplete as bundled. The Jython JAR is not
      signed, and may not be trusted by your JVM as a security provider. This
      manifests as a PEMException: "Unable to create OpenSSL PBDKF:
      PBKDF-OpenSSL SecretKeyFactory not available" during certain operations.
      If this is a problem, place genuine BouncyCastle JARs on the class path,
      and Jython will use those in preference to the classes we include.
      The slim JAR does not suffer this problem.

Jython 2.7.2rc1 Bugs fixed
    - [ 2858 ] test_ssl failure due to embedding Bouncy Castle (doc change only)
    - [ FM-156 ] Race condition in PyStringMap keys method
    - [ 2862 ] Jython fails on Linux for normal user when installed by root

Jython 2.7.2b3 Bugs fixed
    - [ 2810 ] NoSuchMethodError in test_jython_initializer (Java 10+)
    - [ 2808 ] lib2to3 test failures on Windows JDK 11
    - [ 2846 ] Main module __name __ is not "__main__" under Java Scripting API
    - [ 2828 ] Update netty JARs to 4.1.45
    - [ 2044 ] CVE-2013-2027 Current umask sets privileges of class files and cache
    - [ 2834 ] Import of Java classes is not thread safe
    - [ 2820 ] Import fails with UnicodeDecodeError if sys.path contains invalid UTF-8 bytes
    - [ 2826 ] Unicode hex string decode failure
    - [ 2836 ] Java Swing library works only in interactive jython session

Jython 2.7.2b2 Bugs fixed
    - [ 2814 ] maven/build.xml does not PGP-sign the publication

Jython 2.7.2b1 Bugs fixed
    - [ 2806 ] Installer contains dependencies unshaded (Java 8)
    - [ 2666 ] Oracle JDK 7 out of support so no longer available on Travis
    - [ 2294 ] Importation of modules from directories with non-ASCII characters fails
    - [ 2055 ] isinstance() and issubclass() fail with abc.ABCMeta
    - [ 2569 ] jython launcher fails on Windows if JAVA_HOME is set
    - [ 2505 ] PySystemState is lost
    - [ 2796 ] Request for oversize arrays not handled in BaseBytes and PyByteArray
    - [ 2730 ] datetime.strptime('%b') behaviour inconsistent with CPython on Windows JDK 9+
    - [ 2613 ] MANIFEST.MF contains unfilled placeholders
    - [ 2330 ] full-build fails to copy CPython License
    - [ 2651 ] Travis builds failing with *** buffer overflow detected ***
    - [ 2703 ] JycompileAntTask cannot find ...ant.taskdefs.MatchingTask
    - [ 2708 ] test_urllib2net fails (on Travis CI)
    - [ 2764 ] Readme is not displayed when using the GUI installer
    - [ 2345 ] Installing pip fails if JYTHON_HOME points to old installation
    - [ 2774 ] test_ssl failures from weak certificate
    - [ 2768 ] Allow bytearray + and += to accept buffer protocol objects
    - [ 2742 ] JARs for bouncycastle out of date (upgrade to 1.16)
    - [ 2762 ] Upgrade Apache commons-compress to 1.18
    - [ GH-5 ] Updates to JNR/JFFI to improve ARM HF support
    - [ 2445 ] Eclipse's DelegatingFeatureMap has MRO conflict (and IBM's MQQueue)
    - [ FM-121 ] Allow struct unpack and unpack_from bytearray and buffer
    - [ 2635 ] AST.lineno ignored by compile
    - [ 2744 ] Support buffer type in marshal.dump(s)
    - [ 2077 ] marshal doesn't raise error when fed unmarshalable object
    - [ 2732 ] Regression in large module support for pip
    - [ FM-131 ] Support Unicode in zxJDBC exceptions.
    - [ 2654 ] Imported modules allow access to submodules
    - [ 2362 ] Import * doesn't work on JDK9 for java.*, jdk.* namespaces
    - [ 2630 ] Cannot import java.awt.* on Java 9
    - [ 2663 ] Remove dependency on javax.xml.bind.DatatypeConverter
    - [ 2726 ] os.uname() throws IllegalArgumentException on Windows (Chinese localisation)
    - [ 2719 ] Divergence of __str__ and __repr__ from CPython
    - [ 2714 ] Locale and java version failures in test_os_jy
    - [ FM-111 ] Proper processing of gzip trailer without resubmission
    - [ 2231 ] __doc__ of PyString objects is always "The most base type"
    - [ 2230 ] Jython evaluation blocks under heavy load with high multi-core systems
    - [ 2506 ] ensurepip is reporting an error
    - [ 1609 ] Partial parsing does not work with function decorators
    - [ 2494 ] Support for pydoc_data
    - [ 2492 ] NPE for PythonInterpreter after new PyInteger
    - [ 2707 ] jython.py shebang line invalid on Linux
    - [ 1748 ] subprocess and os.system don't show output
    - [ 2343 ] PYTHONPATH is overwritten on Windows
    - [ 2346 ] Launcher not resilient to bad environment variable settings
    - [ 2709 ] test_chdir tolerates absent DOS 8.3 filename
    - [ 2706 ] Use python.path instead of JYTHONPATH
    - [ 2410 ] Regression in PySystemStateTest (leading slash)
    - [ 2639 ] Incorrect result when using != comparison against Java {List, Set, Map}
    - [ 2672 ] Integer formatting emits two minus signs with -2^31
    - [ 2688 ] ClassCastException when adding list of non-PyObjects
    - [ 2659 ] Determine console encoding without access violation (Java 9)
    - [ 2662 ] IllegalAccessException accessing public abstract method via PyReflectedFunction
    - [ 2501 ] JAVA_STACK doesn't work (fixed for Windows launcher only)
    - [ 1866 ] Parser does not have mismatch token error messages caught by BaseRecognizer
    - [ 1930 ] traceback raises exception in os.py
    - [ 2419 ] List expected failures by OS platform in regrtest.py
    - [ 2611 ] mkdir() operation in /Lib/os.py has different behavior when running in Docker container
    - [ 2655 ] __findattr__ is final (update documentation)
    - [ 2646 ] Test failure in test_os_jy after utf-8 decode
    - [ 2469 ] jython launcher fails on Windows if JAVA_HOME is set
    - [ 2650 ] Detail message is not set on PyException from PythonInterpreter
    - [ 2403 ] VerifyError when implementing interfaces containing default methods (Java 8)
    - [ 2715 ] Restrict array.array support for buffer protocol

Jython 2.7.2a1 Bugs fixed
    - [ 2632 ] Handle unicode data appropriately in csv module
    - [ 2638 ] str not default-decoded in str-unicode operations
    - [ 2622 ] json dumps error (use of AbstractDict)
    - [ 2607, 2620 ] Error loading Python DLL (error code 14001)
    - [ 2612 ] NPE while trying to load class
    - [ 2609 ] PyType.fromClass publication race (discovered in strptime and re)
    - [ 2608 ] Encoding problems with non-ascii host name
    - [ 2599 ] Cannot handle network paths under Windows
    - [ 2600 ] subprocess doesn't have _args_from_interpreter_flags (blocks support for multiprocessing)
    - [ 2602 ] NumberFormatException in terminal on OSX 10.12.5 (ncurses related)


==============================================================================
Jython 2.7.1
==============================================================================

Jython 2.7.1rc3
  Bugs fixed
    - [ 2597 ] PySystemState.sysClosers requires cleanup to prevent memory leak
    - [ 2593 ] file.write(obj) raises NullPointerException on type error
    - [ 2592 ] Line breaks in exceptions are wrong (characters being backslash-escaped)

Jython 2.7.1rc2
  Bugs fixed
    - [ 2536 ] deadlocks in regrtests due to StackOverflowError in finally block (workaround, still open)
    - [ 2348 ] site module does not import if usernames contain non-ascii characters
    - [ 2356 ] java.lang.IllegalArgumentException on startup on Windows if username not ASCII
    - [ 1839 ] sys.getfilesystemencoding() is None (now utf-8)
    - [ 2579 ] Pyc files are not loading for too large modules if path contains __pyclasspath__
    - [ 2570 ] Wrong shebang set for OS X installation of Jython
    - [ 2585 ] test_ssl failure due to Netty exception mapping
    - [ 2313 ] test_jython_initializer failure on Windows
    - [ 2399 ] test_sort failure on Java 8
    - [ 2309 ] test_classpathimporter fails on Windows.
    - [ 2318 ] test_zipimport_jy failure on Windows
    - [ 2571 ] Error handling in test_codecencodings_tw fails on Java 8
    - [ 2568 ] test_threading intermittent failure
    - [ 2559 ] test_marshal fails
    - [ 2564 ] test_socket_jy fails on Linux
    - [ 2524 ] datetime <-> time conversion incorrect in non UTC times
    - [ 2504 ] datetime.date.__tojava__ returns incorrect dates in non-UTC timezones with
               negative offset (Jython 2.7.0)
    - [ 2500 ] Loading default cacerts on client socket when specifying a default java truststore
               unnecessarily searches for more cacerts in the same dir
    - [ 2561 ] win32_ver raises exception (breaks test_platform on windows)
    - [ 2521 ] Windows installation (all) fails on Windows 10
    - [ 2557 ] ongoing pain with platform detection via os.name and sys.platform
    - [ 1996 ] Core slots array out of bounds with multiple inheritance
    - [ 2101 ] Diamond-style multiple inheritance fails when using __slots__ on the second branch

  New Features
    - Updated Netty to 4.1.11, ASM to 5.2, BouncyCastle to 1.57, Commons Compress to 1.14,
      Guava to 22.0, ICU4J to 59.1, JFFI to 1.2.15, JNR-JFFI to 2.1.5, JNR-POSIX to 3.0.41,
      JNR-Constants 0.9.9, JLine to 2.14.3, MySQL Connector to 5.1.42, PostgreSQL to 42.1.1
      Note:
      You might find it strange that Jython bundles guava-22.0-android.jar rather than guava-22.0.jar.
      This is the official way to support Java 7 with Guava > 20.0, also on non-Android platforms.
      See https://github.com/google/guava/wiki/Release22#guava-release-220-release-notes.
    - There is now support for non-ascii paths in all (home, installation, temporary)
      directories, which previously caused failures. sys.getplatformencoding() returns
      'utf-8' as the nominal file-system encoding, irrespective of localization. This may
      differ from what CPython reports on the same OS. In Jython a file path presented
      as bytes is the UTF-8 encoding of the unicode file path as Java sees it. (See issues
      #1839 and #2356.) This matter is unrelated to file.encoding or the console.

Jython 2.7.1rc1
  Bugs fixed
    - [ 2552 ] installing scandir via pip fails (breaks e.g. installing pathlib2 via pip)
    - [ 2534 ] os.getlogin() returns a wrong user or returns an exception
    - [ 2553 ] sys.getwindowsversion not implemented (breaks pathlib on Windows)
    - [ FM-55 ] Replace deprecated use of ASCII constant with ascii()
    - [ 1777 ] Help getting SymPy working with Jython
    - [ 2475 ] Backported python 3 pathlib and pathlib2 do not work b/c of meta class issues
    - [ 2551 ] __slots__ in diamond-style causes lay-out conflict (breaks pathlib and sympy)
    - [ 2550 ] test_list_jy fails on Java 8
    - [ 2549 ] test_posix fails on Linux
    - [ 2548 ] Unicode u'\N{name}' frequently broken, because ucnhash.dat outdated
    - [ 2527 ] cStringIO throws IllegalArgumentException with non-ASCII values
    - [ 2511 ] Percent operator calls __getattr__('__getitem__')
    - [ FM-28 ] zipimporter supports multi-byte characters in pathnames
    - [ 2228 ] Reuse "makeCompiledFilename" function where possible
    - [ 608632 ] __doc__foo should accept java String
    - [ 2523 ] defaultdict.__getitem__() does not propagate exceptions raised by calling
               default_factory
    - [ 2522 ] defaultdict.__getitem__(unhashable) raises KeyError instead of TypeError
    - [ 2515 ] typing module doesn't import
    - [ 2538 ] Test failures in test_unittest
    - [ 2293 ] "java.lang.IllegalArgumentException: java.lang.IllegalArgumentException:
               Cannot create PyString with non-byte value" triggered after adding
               unicode element with non-ASCII character to sys.path
    - [ 2535 ] Building jython standalone manually results in local filesystem paths
               showing up in Jython stacktraces
    - [ 2533 ] Opcode.java is outdated -> breaks PyBytecode.interpret
    - [ 2502 ] Missing OpenFlags enum entry makes Jython clash with JRuby dependency
    - [ 2446 ] Support SNI for SSL/TLS client sockets
    - [ FM-50 ] Calling Java vararg methods with no arguments fails
    - [ 2455 ] Java classes in packages with __init__.py not found
    - [ 2481 ] Update urllib2.py from 2.7.11
    - [ 2514 ] Jython Class.__subclasses__() does not match Python output (not in load order)
    - [ 2413 ] ElementTree.write doesn't close files if used with invalid encoding
    - [ 2443 ] java.util.Map derived classes lack iterkeys, itervalues methods
    - [ 2516 ] _get_open_ssl_key_manager tries to validate that the private and
               public keys match, and is throwing an SSLError:
               "key values mismatch" when provided with multiple certs (Root/CA/Cert)
    - [ 2314 ] Failures in test_shutil on Windows
    - [ 2488 ] Subprocess should always join corresponding coupler threads
    - [ 2461 ] SSL Handshake fails for peers connected via IPV6
    - [ 2508 ] Jython non-blocking socket send() does not conform to Python's behavior.
    - [ 2462 ] SSL Handshake never happens even if do_handshake_on_connect=True for serv
    - [ 2487 ] PyType.fromClass deadlocks on slow systems (circleci for example)
    - [ 2480 ] Repeating from <javapackage> import <class> results in reload
    - [ 2472 ] Importing simplejson fails with: 'NoneType' object has no
               attribute 'encode_basestring_ascii'
    - [ 2471 ] Jython is using netty channel future incorrectly
    - [ 2470 ] Jython leaks sockets in select reactor
    - [ 2469 ] Embedded BouncyCastle provider does not validate properly
    - [ 2460 ] Wrong result when multiplying complex numbers involving infinity
    - [ 2454 ] Security Vulnerability in Jython
    - [ 2442 ] Overriding __len__, __iter__, and __getitem__ in a tuple subclass
               causes an infinite recursion
    - [ 2112 ] time.strptime() has different default year in Jython and CPython
    - [ 1767 ] Rich comparisons

  New Features
    - Recognize cpython_cmd property to automatically build CPython bytecode for oversized
      functions (e.g. jython -J-Dcpython_cmd=python). This is especially convenient when
      installing things like SymPy via pip; it would frequently prompt you to provide yet
      another pyc-file. Now just run: pip install --global-option="-J-Dcpython_cmd=python" sympy
    - SymPy is now workable. (However it runs somewhat slow; some profiling will be required.)
    - Updated ucnhash to support name lookup for Unicode 9.0 (like in u'\N{name}').
    - Jython doc-entries in Java-code (__doc__foo) now accept anything that implements
      java.lang.CharSequence (PyString implements CharSequence now as well).
      This allows Jython-friendly Java-code without PyString-induced dependency on Jython.
    - Provided a painless way to deal with long-standing Issue 527524 - "Cannot compile to use
      methods exceeding JVM size restrictions": If a CPython 2.7 bytecode-file (.pyc) exists,
      Jython automatically uses that bytecode to represent oversized functions and methods,
      while methods with proper size are still compiled to JVM bytecode.
      The crucial bytecode sections from the pyc-file are embedded seamlessly into the created
      class-file, so you wouldn't have to distribute the pyc-file at all.
      Current implementation of this feature is provisional and might change in future versions.
      Issue 527524 was still not listed as solved, because Jython cannot yet create the pyc-file
      by itself.
    - Support for CPython bytecode (.pyc-files) was updated to Python 2.7 bytecode (from 2.5).
    - Buffer API changes allow java.nio.ByteBuffer to provide the storage when a PyBuffer
      is exported. This is to support CPython extensions via JyNI, but has other uses too
      (including access to direct memory buffers from Python). There is no change at the
      Python level or for client code using PyBuffer via the "fully encapsulated" API. It
      risks breaking code that makes direct access to a byte array via PyBuffer, implements
      the PyBuffer interface, or extends implementation classes in org.python.core.buffer.
    - Updated Netty to 4.1.4
    - Fixed platform.mac_ver to provide actual info on Mac OS similar to CPython behavior.
    - Added uname function to posix module. The mostly Java-based implementation even
      works to some extend on non-posix systems (e.g. Windows).

Jython 2.7.1b3
  Bugs fixed
    - [ 550200 ] Jython does not work on ebcdic platforms
    - [ 2457 ] Synchronization bug in PySystemStateCloser causes complete deadlock
    - [ 2456 ] java.util.List.remove(index) does not dispatch to overloaded method for index remove
    - [ 2453 ] org.python.modules.sre.PatternObject should be named SRE_Pattern to look like CPython
    - [ 2452 ] Jython locking threads on Java proxy objects (multithreaded performance degradation)
    - [ 2451 ] array.array objects should not hash
    - [ 2441 ] sys.executable is None on standalone install, thus causing a setup()
               install/build to fail
    - [ 2439 ] 'SSLSocket' object has no attribute 'accept'
    - [ 2437 ] no common ciphers SSL handshake error
    - [ 2436 ] Missing socket.SOL_TCP (= socket.IPPROTO_TCP)
    - [ 2435 ] Remove unsupported socket options like socket.SO_EXCLUSIVEADDRUSE
    - [ 2434 ] zlib module has different flush behaviour than CPython and PyPy
    - [ 2431 ] tox not working because of zero width bug in Jython sre
    - [ 2428 ] socket.connect_ex does not properly report connection state sequence
    - [ 2426 ] Support socket shutdown with "how" of _socket.SHUT_RDWR (2)
    - [ 2423 ] jarray.array() method broken in 2.7
    - [ 2421 ] UnboundLocalError: local variable 'key_store' referenced before
               assignment in _sslverify.py
    - [ 2417 ] os.utime fails on UNC network paths
    - [ 2416 ] os.system does not use changes to os.environ in subprocesses
    - [ 2401 ] SSL race produces NPE
    - [ 2400 ] Installing pip as part of Jython installation fails
    - [ 2393 ] Clean running regression tests on windows
    - [ 2392 ] Intermittent errors from sre_compile.py - 
               ValueError('unsupported operand type', 'subpattern')
    - [ 2391 ] read-only attr wrongly reported
    - [ 2390 ] Support SSLContext
    - [ 2374 ] setsockopt call from pika fails with "Protocol not available"error
    - [ 2368 ] Problem with _io and BlockingIOError
    - [ 2360 ] Not installing pip on Jython
    - [ 2358 ] Using "read all" ops on /proc files on Linux produces empty strings
    - [ 2357 ] Infinite recursion with set subclass
    - [ 2338 ] readline.py startup hook
    - [ 2329 ] Cannot create virtualenv with jython2.7rc2 - breaks tox
    - [ 2321 ] Py.setSystemState() is a NOOP
    - [ 2279 ] PyIterator#__tojava__ should support coercion to java array
    - [ 2350 ] Installer errors on ensurepip
    - [ 2276 ] Ctrl-Z doesn't exit Jython console on Windows
    - [ 2223 ] __file__ not defined when running from ScriptEngine
    - [ 2154 ] When running multiple engines in different threads, the last registered
               writer is in use for all script executions.
    - [ 2124 ] xml.dom.minidom.writexml() changes value of TEXT_NODE
    - [ 1984 ] os.pipe() missing
    - [ 1953 ] lib2to3 missing
    - [ 1780 ] jarray not properly converted to list with java.util.Arrays.asList(T... a)
    - [ 1739 ] JSR223: ScriptEngine.FILENAME not honoured
    - [ 1738 ] JSR223: ScriptEngine.ARGV is not honoured

  New Features
    - Use latest upstream bundled wheels for ensurepip: pip (7.1.2), setuptools (18.4),
      replacing wheels patched specifically for Jython
    - Unified PyDictionary and PyStringMap under a common abstract base class.
    - Added Py.newJ method family for easier access to Python code from Java. Now you
      can coerce Python types under Java interfaces without needing to inherit from
      the Java-interface in Python code. Also see PyModule.newJ.

Jython 2.7.1b2
  Bugs fixed
   - [ 2396 ] test_threading and others fail under Cygwin (sys.executable).
   - [ 2397 ] test.test_os_jy fails on Windows due to non-byte PyString.
   - [ 2405 ] os.getpid() is missing (JNR JARs updated). 

Jython 2.7.1b1
  Bugs fixed
   - [ 1423 ] Circular imports no longer cause RuntimeError.
   - [ 2310 ] test_import runs on Windows (and passes with 4 skips).
   - [ 2347 ] failures in test_import_pep328 when run with -m
   - [ 2158, 2259 ] Fixed behaviour of relative from ... import *
   - [ 1879 ] -m command now executes scripts from inside a jar file 
   - [ 2058 ] ClasspathPyImporter implements PEP 302 get_data (and others)
   - [ 2364 ] bytearray and str: isalpha(), isupper() etc. now match Python 2

==============================================================================
Jython 2.7
==============================================================================

Jython 2.7rc3
  Bugs fixed
   - [ 2311, 2319 ] Many compatibility fixes for launcher (bin/jython, bin/jython.exe)
   - [ 2332 ] jython -m test.regrtest -e now finds the tests it should
   - [ 1572 ] sys-package-mgr console messages silenced by default. Thanks to Emmanuel Jannetti.
   - [ 2327 ] Tests in org/python/tests/imp run only with  proper path
   - [ 2105 ] Fix inconsistent conversion of PyObject to String in StdoutWrapper
   - [ 1795 ] Support both subclassing from Java in a Python class and a Python implementation of __tojava__
   - [ 1861 ] Fix threading.Lock to support non-reentrant semantics
   - [ 2323 ] Fixes pickling issues in object.__reduce__ and cPickle.{load, loads}
   - [ 1540 ] Fix stack overflow due to how proxies for Java classes resolve super method in Java
   - [ 2325 ] Enable piping input into Jython without getting extraneous prompt output
   - [ 2324 ] Fix index computation for StringBuilder after seek back in cStringIO
   - [ 2171 ] Fixed direct calls to __pow__() on int, long and float with a modulo of None
   - [ 2326 ] Java's weakly consistent iteration of ConcurrentMap is compatible with mutation
   - [ 2322 ] Refreshed several networking modules from CPython 2.7.9 due to CVE-2013-1752
   - [ 1670 ] Added automatic type coercion of decimal.Decimal to java.lang.{Double, Float}
   - Pull in hand coded AST work into code gen in asdl_antlr
   - [ 2307 ] Fixed normalization of paths on Windows
   - Module tempfile now returns temporary directory in proper case (See also CPython issue 14255)
   - Faster extended slice deletion in bytearray.
   - [ 2304 ] Fixed __module__ missing from functions in the time and operator modules

Jython 2.7rc2
  Bugs fixed
   - [ 2301 ] time.strftime now always returns a bytestring (fixes pip on Japanese locales)
   - [ 2297 ] Updates Jython installer to use jython.exe
   - [ 2298 ] Fix setuptools wheel bundled by ensurepip so it checks for Windows on Jython
   - [ 2300 ] Fix bin/jython.py to not consume subcommand args

  New features
   - Installer installs pip, setuptools by default, but custom builds can de-select.
     Does not change standalone usage. (Runs jython -m ensurepip as last install step.)
   - Makes jython.py be the default launcher (as bin/jython) if CPython 2.7 is available.

  Removed support
   - Installer no longer supports using an alternative JRE when generating Jython launchers.
     Instead just use JAVA_HOME environment variable to select the desired JRE.
     (Removed because of the new native launcher, jython.exe, that is now used on Windows.)

Jython 2.7rc1
  Bugs fixed
   - [ 1793 ] Fix relative seek in read/write mode via a non-buffered readinto() method 
   - [ 2282 ] Speed up startup with compiled $py.class files included for standalone, full jars
   - [ 1371, 2283, 2296 ] More robustness wrt security managers, python.home, import of non-ascii names
   - [ 2068 ] Use position(long) setter to manually update file channel's position post-write.
   - [ 2288 ] Posix link and symlink support now uses NIO2
   - [ 2120 ] Use Java instead of JNR for os.chmod, os.mkdir when running on Windows
   - [ 2226 ] Matches CPython's re support of what counts as a Unicode whitespace codepoint
   - [ 1725 ] Speed up re matching by not executing SRE_STATE#TRACE in the sre regex engine
   - Exceptions with non-ascii args should not cause an exception when displayed on console
   - [ 2274 ] Remove Jython-specific pythonpath, test_pythonpath; update pwd to support unicode
   - [ 2289 ] Ensure core types are Serializable, specifically PyUnicode
   - [ 2272 ] Generalize adding special slots (__dict__, __weakref__); adds support for Werkzeug
   - [ 2280 ] Avoid deadlock at shutdown with synchronization of PySystemStateCloser, FinalizeTrigger
   - [ 2275 ] Upgrade JLine to support keyboard layouts using AltGr (such as Finnish) on Windows
   - Improve robustness of socket and SSL support, especially error handling
   - time.sleep(0) should always attempt to yield CPU
   - [ 2271 ] Restore __tojava__ to datetime.{date, datetime, time} classes
   - [ 2084, 1729 ] Robust handling of sun.misc.Signal exceptions across various JVM implementations
   - [ 2189 ] Add java_user scheme to support user directory installs
   - Fix Popen._internal_poll so that it does not race with java.lang.Process finalization
   - Fix reflection-based garbage collection traversal for CPython compatible gc semantics
   - [ 1491 ] Windows launcher now uses jython.exe (built with PyInstaller) instead of jython.bat
     This means that pip, nosetests, yolk, and other installed tool scripts finally work on Windows

  New features
   - Can add a __dict__ slot descriptor to a subclass of Java classes, such as java.util.HashMap
   - Directly execute zip files or dirs with top level __main__.py to support wrapper scripts
     generated by distlib, part of pip
   - Reflection-based traversal is now activated by default as a fallback for ordinary traversal.
     This impacts third-party extenders of PyObject. A warning is emitted that suggests next steps
     on how to avoid this cost.
   - Uses classpath wildcard in jython.py/jython.exe to minimize the launcher command line,
     (main benefit is Jython developers on Windows using dev builds)
   - Adds new Jython launcher written in Python, bin/jython.py, to be run by CPython 2.7

Jython 2.7b4
  Bugs Fixed
    - [ 2032 ] Fixed typo in compiler/pycodegen.py
    - [ 2190 ] Raise ValueError when unichr() is called with isolated surrogate codepoint
    - [ 1057 ] Finalizer support (__del__) for new style classes
    - [ 2192 ] Server requests were hanging using jython, django and django-jython
    - [ 2204 ] Minimum (core) install will now support Jython console
    - [ 2184 ] inspect.callargs, including anonymous tuples in function params
    - [ 2100 ] Fix deficiencies in PyUnicode beyond the BMP
    - Fix bug in supporting meta path importers for six
    - [ 2183 ] Rework function attributes support
    - [ 2115 ] Allow bound methods as arg for single method interface param
    - [ 2163 ] Refactor Py, PySystemState to init constants early
    - [ 2217 ] Update serial release to 3 for sys.version_info
    - [ 2090, 1494 ] Behaviour of long in the JSR-223 engine
    - [ 2196 ] Do not emit duplicate entries in building standalone jar
    - [ 1708 ] Ensure regrtest runs in a C locale to avoid failures
    - [ 2037 ] Prevent non-byte values appearing in str()
    - [ 2205 ] Guard via module import lock all entry points from Java into import
    - [ 1631 ] Fully proxy java.util.Map objects as Python dicts
    - [ 2215 ] Fully proxy java.util.List objects as Python lists
    - [ 2242 ] select.select and related socket.connect_ex fixes
    - [ 2241 ] Fully proxy java.util.Set objects as Python sets
    - [ 2239, 1825 ] os.getenv, os.listdir may return unicode instead of bytes
    - [ 2110 ] Update Java Native Runtime jars
    - [ 2236 ] Interactive parser does not accept try ... except E as e: syntax
    - [ 2232 ] Visit class decorators when visiting class def in scopes compilation
    - [ 2247 ] dict.pop should not add additional quoting in KeyError
    - [ 2238 ] os.system now uses a simpler wrapping of ProcessBuilder
    - [ 1561 ] Raises NotImplementedError if abstract method from Java is not implemented
    - [ 2221 ] Implement Popen.pid 
    - [ 2150 ] Fix regrtest to support -x to exclude tests
    - [ 1152612 ] All dict methods for __dict__ except views
    - [ 1762054 ] Add webbrowser module
    - [ 2252 ] Args in sys.argv are now unicode if characters > 127
    - [ 2092 ] Upgrade to JLine2 and add tab completion support
    - [ 2236 ] Interactive parser does not accept try ... except E as e: syntax
    - [ 2237 ] Fully conformant math and cmath support
    - [ 2244 ] More robust testing of math and cmath modules
    - [ 2224 ] id(...) now persists object resurrection and a pattern is provided to solve similar issues
               (i.e. attributes bound to a PyObject via a WeakHashMap) in an analogue way (See JyAttribute.java).

  New features
    - Full support of Python buffer protocol, along with Java ByteBuffer support
    - Add index to PyUnicode facilitating O(1) access to strings beyond the BMP.
    - java.util.{Map, List, Set} are now treated as subclasses of the
      corresponding Python abstract base classes
    - jythonlib module to simplify usage of Java internals from Python;
      weakref collections now directly use corresponding collections from
      Google Guava and java.util
    - CPython's _json.c was ported to Java to speed up JSON encoding/decoding
    - Upgraded third party libraries
    - Initial support for ensurepip module
    - Callbacks can be registered/unregistered to be notified when
      bytecode is loaded, using jythonlib.bytecodetools
    - Jython now features an optional, but recommended-to-implement traverseproc-mechanism
      like CPython. This enables some new gc-features to optionally emulate CPython-specific
      gc-behavior. See doc in gc.java and Traverseproc.java.

  Potentially backwards breaking changes, removing silent errors:

    - remove method on proxied List objects now follows Python
      semantics: a ValueError is raised if the item is not found in the
      java.util.List. In the past, Java semantics were used, with a
      boolean returned indicating if the item was removed or
      not. Given how this interacted with Jython, such remove
      invocations were in the past silent, and perhaps were actually a
      bug.

    - d[key_not_present], if d implement java.util.Map, no longer
      returns None, but raises KeyError, which means this behavior now
      matches standard dict semantics.

    - Abstract methods of an inherited class or interface from Java now raise
      NotImplementedError, instead of returning None (in Java, null) or some
      "zero", if they are not implemented in the extending Python class.

    - os.getenv, os.listdir, sys.argv now return unicode instead of
      str values if a given value is not ascii, thus allowing such
      values to be passed through to Java, eg
      java.io.File(sys.argv[1]). Earlier such behavior was potentially
      silently failing in Python functions, but passing through to
      Java because of bug 2037. This behavior conforms with Python
      3.x, which uses Unicode.

Jython 2.7b3
  Bugs Fixed
    - [ 2225 ] Jython+django-jython - no module named site
    - [ 1497 ] ast classes do not have appropriate base classes
    - [ 1980 ] ast.Eq, ast.Gt, ast.GtE, ast.In, ast.Is, ast.IsNot, ast.Lt, ast.LtE, ast.NotEq and ast.NotIn should be subclasses of ast.cmpop
    - [ 1981 ] ast.And and ast.Or should be subclasses of ast.boolop
    - [ 2130 ] Fix max such that any raised ValueError uses the correct error message text
    - [ 2180 ] default encoding is not UTF-8
    - [ 2094, 2147, 2174 ] Fix bugs in select.poll, threadpool group closing, and SSL handshaking
    - [ 2178 ] Update Apache Commons Compression to 1.8.1 for jar-complete builds
    - [ 2176 ] Fix bz2.BZ2File.read so it reads the number of requested bytes
    - [ 2028 ] Implement unicode._formatter_parser and unicode._formatter_parser
    - [ 1747 ] Synchronize runClosers upon shutdown
    - [ 1898 ] Support subprocess termination vs terminate/kill methods
    - [ 2096 ] Fix subprocess construction such that handles are inherited if not set
    - [ 2123 ] Preserve original name of console encoding
    - [ 1728 ] Make PyDictionary#equals() more robust, similar to PyTuple and PyList
    - [ 2040 ] Ensure that bz2 decompression has enough data to decode
    - [ 2146 ] Fix xrange compliance
    - [ 1591 ] Interactive interpreter stuck on '...' loop
    - [ 1982 ] Modify enumerate such that it can it work with arbitrarily long integers
    - [ 2155 ] Enable IP address objects to be used as tuples
    - [ 1991 ] Subclassed itertools classes can now chain, and be iterated by Java code
    - [ 2062 ] os.write accepts objects having the buffer API
    - [ 1949 ] Update collections.deque to 2.7 compliance, and is now threadsafe
    - [ 1066 ] Add CJK codecs, as well as other codecs available in Java but not in Jython directly
    - [ 2112 ] time.strptime now uses _strptime.py
    - [ 2123 ] Use Java codec throughout parser (not sometimes a Python one)
    - [ 2078 ] Fix tuple creation for inet6 addresses, and support for bound inet4 socket local address
    - [ 2088 ] Fix defaultdict so that derived classes __missing__ methods are not ignored
    - [ 2108 ] Cannot set attribute to instances of AST/PythonTree (blocks pyflakes)
    - [ 1982 ] builtin function enumerate() should support an optional 'start' argument
    - [ 1896215 ] findResource(s) for SyspathJavaLoader
    - [ 2140 ] Raise ValueError on args of invalid domain for math.sqrt, math.log
    - [ 2119 ] Updated *Derived.java classes as generated by src/templates/gderived.py.
    - [ 2087 ] Updated defaultdict to use LoadingCache idiom instead of deprecated ComputingMap
    - [ 2133 ] Fix memory leak by doing computed loads only with __getitem__ in defaultdict
    - Full bz2 support
    - Fix the struct module so that struct.Struct class can be derived from.
 
  Work on resource cleanup
    - RefReaperThread is now a Runnable to avoid ClassLoader resource leaks
    - ShutdownCloser is now a Runnable to avoid subclass audit issues under a SecurityManager
    - Remove shadowing of mutable statics in PySystemState, instead make them instance variables
    - Fix PySystemState such that it supports AutoCloseable, Closeable

  Potentially backwards breaking changes
    - Fix ThreadState so that Jython runtime can be unloaded, using Object[1] indirection
    - Use weakkey/weakvalue when caching ThreadState for a given thread, instead of using ThreadLocal
    - recursion_count is now more approximate, because not all entry/exit pairs are tracked
    - By default, site module is imported when using PythonInterpreter
      Use -Dpython.import.site=false (as of RC1) to not import site at all

  New Features
    - Added socket reboot work, using Netty 4 to fully support socket, select, and ssl API

Jython 2.7b2
  Bugs Fixed
    - [ 1753 ] zlib doesn't call end() on compress and decompress
    - [ 1860 ] test failures in test_array.py
    - [ 1862 ] cStringIO does not support arrays as arguments
    - [ 1876 ] PYTHONIOENCODING unsupported, used (among others) by PyDev
    - [ 1926 ] Adjust MutableSet.pop test so we do not need to skip it
    - [ 1964 ] time.strptime() does not support %f in format
    - [ 2005 ] threading.Event object's wait([timeout]) function returns null instead of True/False.
    - [ 2013 ] %x hex formatting takes O(N^2) time.
    - [ 2020 ] str.translate should delete characters in the second arg when table is None
    - [ 2027 ] Discrepancy in bin(-num) output
    - [ 2033 ] test_strptime fails: test_mar1_comes_after_feb29_even_when_omitting_the_year
    - [ 2046 ] sys.stdin.readline() hangs when used interactively (JLine, Windows)
    - [ 2060 ] Thread ident missing
    - [ 2071 ] datetime strftime %f does not work
    - [ 2075 ] Incorrect padding for hex format strings
    - [ 2082 ] Unexpected (Pdb) prompt during regression tests
    - [ 2083 ] os.unlink() can delete directories
    - [ 2089 ] sys.stdout not flushed after sys.exit

  New Features
    - Command line option -E (ignore environment variables)
    - Environment variable PYTHONIOENCODING, and corresponding registry items

  Removed support
    - No longer supports Java 6; the minimum version is now Java 7

Jython 2.7b1
  Bugs Fixed
    - [ 1716 ] xrange slicing raises NPE.
    - [ 1968 ] Fixes for test_csv.py.
    - [ 1989 ] condition.notify_all() is missing.
    - [ 1994 ] threading.Event doesn't have is_set method fixed.
    - [ 1327 ] ThreadState needs API cleanup work
    - [ 1309 ] Server sockets do not support client options and propagate them to 'accept'ed client sockets.
    - [ 1951 ] Bytecode Interpreter stack optimization for larger arguments
    - [ 1894 ] bytearray does not support '+' or .join()
    - [ 1921 ] compiler module broken in Jython 2.7 
    - [ 1920 ] Backport CO_FUTURE_PRINT_FUNCTION to Lib/compiler/pycodegen.py
    - [ 1914 ] Float formatting broken in many non-English locales in Jython 2.7
    - [ 1909 ] attrgetter does not parse dotted attributes
    - [ 1924 ] Implement operator.methodcaller
    - [ 1934 ] Break itertools.compress into a separate class 
    - [ 1933 ] Break itertools.cycle into a separate class
    - [ 1932 ] Make check for iterability in chain() arguments lazy
    - [ 1931 ] Check that there are exactly 2 filter args
    - [ 1913 ] Support short -W options
    - [ 1897 ] 2.7.0ax only has partial ssl support
    - array_class in jarray module returns the "Array of a type" class

  New Features
    - bytearray complete
    - a buffer API
    - memoryview
    - bz2 module

Jython 2.7a2
  Bugs Fixed
    - [ 1892 ] site-packages is not in sys.path

Jython 2.7a1
  Bugs Fixed
    - [ 1880 ] Sha 224 library not present in Jython

Jython 2.5.4rc2
  Bugs Fixed
    - [ 2017 ] jython.bat script pollutes environment! (variables)
    - [ 1899 ] Fix to platform.py to correctly avoid a warning message on Windows.
    - [ 1988 ] API for threading.condition fails to accept *args for acquire
    - [ 1753 ] zlib doesn't call end() on compress and decompress
    - [ 1971 ] platform.py - 'NoneType' object has no attribute 'groups'
    - [ 1988 ] API for threading.condition fails to accept *args for acquire

Jython 2.5.4rc1
  Bugs Fixed
    - [ 1936 ] JBoss 7, vfs protocol in use for jarFileName in PySystemState.
    - [ 1972 ] jython 2.5.3 sys.stdin.readline() hangs when jython launched as subprocess on Mac OS X.
    - [ 1962 ] Interactive console in Jython 2.5.3 needs CRTL-D to execute command.
    - [ 1676 ] NPE in defaultdict 
    - [ 1481 ] jython throws java.lang.IllegalArgumentException instead of ValueError.
    - [ 1716 ] xrange slicing raises NPE.

Jython 2.5.3rc1
  Bugs Fixed
    - [ 1952 ] __import__(): Handling of non-dict globals argument incompatible with CPython
    - [ 1900 ] Python imports from Java cause some Python imports to fail

Jython 2.5.3b3
  Bugs Fixed
    - [ 1754 ] modjy does not provide appropriate wsgi.input file-like object

Jython 2.5.3b2
  Bugs Fixed
    - [ 1908 ] Patch for 'Unmapped exception: java.net.NoRouteToHostException'
    - [ 1871 ] Relative import in module gets imported to top level (regression)
    - [ 1854 ] set().pop() race condition
    - [ 1730 ] functools.partial incorrectly makes __doc__ property readonly
    - [ 1537 ] expat: org.python.apache.xerces.parsers.SAXParser
    - [ 1268 ] SAX parsers wants to load external DTDs, causing an exception
    - [ 1805 ] threading.Thread always gets name "Thread" instead of a discriminating one
    - [ 1866 ] Parser does not have mismatch token error messages caught by BaseRecognizer
    - [ 1837 ] gderived.py and template Ant target fail on Windows
    - [ 1536 ] NPE in org.python.jsr223.PyScriptEngine:187
    - [ 1640 ] cStringIO does not complain on getvalue after close
    - [ 1721 ] NPE when using JSR 223 (TestCase+Patch)
    - [ 1749 ] function descriptor doesn't work in interactive console
    - [ 1816 ] Jython Interactive Console makes system beep noise too much
    - [ 1829 ] test_socket.py failing on Ubuntu (Oneiric)
    - [ 1844 ] bad host returned by getsockname

Jython 2.5.3b1
  Bugs Fixed
    - [ 1835 ] Fix typo: occurred
    - [ 1727 ] Error in Jython 2.5.2 with os.stat and varargs
    - [ 1735 ] return type of os.read is unicode, not str
    - [ 1755 ] os.utime('/tmp/nonexistent-file', None) fails to raise OSError
    - [ 1768 ] sax.parse doesn't handle attributes with name 'id' correctly
    - [ 1803 ] _tcpsocket doesn't have 'family' attribute
    - [ 1804 ] _tcpsocket doesn't have 'type' and 'proto' attributes
    - [ 1809 ] socket.getaddrinfo sometimes returns an object that crashes in __str__
    - [ 1811 ] Recursive import bug w/ SQLAlchemy 0.7.3
    - [ 1819 ] Incorrect handling of Java object toString methods returning null
    - [ 1824 ] os.link() can silently fail
    - [ 1825 ] EnvironmentError.filename is `str` even if original name is `unicode`
    - [ 1828 ] Problems inheriting from long
    - [ 1833 ] Trouble passing Python objects through a Java class back to Python

Jython 2.5.2
  same as 2.5.2rc4

Jython 2.5.2rc4
  Bugs Fixed
    - [ 1667 ] thread.local subclasses with constructor params fail
    - [ 1698 ] warnings module fails under JSR-223
    - [ 1697 ] Wrong error message when http connection can not be established
    - [ 1210 ] Lib/socket.py doesn't allow IPv6 sockets and fails with an AssertionError
    - [ 1700 ] "virtualenv is not compatible" to 2.5.2rc3
    - [ 1701 ] Files are not flushed properly when opened from the EDT (partial fix)
  New Features
    - The socket module now includes ipv6 support
    - The socket module now also includes Internationalized Domain
      Names (RFC 3490) support on Java 6

Jython 2.5.2rc3
  Bugs Fixed
    - [ 1674 ] PDB crashes under the JSR-223 scripting engine
    - [ 1680 ] jython -c option is not parsed right
    - [ 1681 ] JSR-223, Jython 2.5.2 and implementing Java Interfaces from Python
    - [ 1675 ] Jython exits prematurely when executing a file, thus killing Swing windows
    - [ 1682 ] exit code of 0 on unhandled exception
    - [ 1668 ] strptime('','') works on cpython but not on jython
    - [ 1693 ] Unicode sys.path elements cause UnicodeErrors on import
      
Jython 2.5.2rc2
  Bugs Fixed
    - [ 1665 ] cPickle calls __import__ with illegal parameters
    - [ 1628 ] getpass.getpass echoes input
    - Fix logic to detect that a console is interactive (related to #1133)

Jython 2.5.2rc1
  Bugs Fixed
    - [ 1133 ] Support ipython and other completers with readline emulation
    - [ 1642 ] JSR223 PyScriptEngine#getInterface returns a NPE when called with zero args
    - [ 1662 ] time.strptime does not use Java date format strings properly
    - [ 1543 ] PyArray fails to clean up pre-allocated space
    - [ 1661 ] Error at on exit in TCC/LE
    - [ 1639 ] JBoss 5, vfszip protocol in use for jarFileName in PySystemState
    - [ 1660 ] threading module memory leak
    - [ 1452 ] pydoc help() function fails because sys.executable is None in stand-alone Jython
    - [ 1568 ] sys.stdout.encoding returns wrong value in Windows with Jython 2.5.1 (fixed on Java 6 only)
    - [ 1647 ] zxJDBC does not handle NVARCHAR
    -  SocketServer module now supports ephemeral server ports (by using port  0); see discussion for #1660

Jython 2.5.2b2
  Bugs Fixed
    - [ 1327 ] Classloaders cannot GC, which exhausts permgen (partial  bug fix)
    - [ 1604 ] PyBuiltinCallable.Info should be serializable
    - [ 1397 ] Bugs in PyList and PyJavaType.ListIndexDelegate slice setting
    - [ 1503 ] Java constructors should take keyword arguments
    - [ 1648,1495,1516 ] Incomplete implementation of pep328 for relative imports
    - [ 1611 ] Jython bytecode violated JLS, causing NPE on Sun's JVM when using -Xcomp option
    - [ 1643 ] Tools subdirectory still exists in trunk
    - [ 1455 ] Classes loaded dynamically from sys.path do not have their package defined
    - [ 1555 ] Jython does not publish MIME types via JSR 223 (ScriptEngine.getFactory().getMimeTypes() is empty).
    - [ 1632 ] cPickle.Unpickler does not allow assignment of find_global
    - [ 1395 ] PyList.indexOf() and PyTuple.indexOf() do not function properly
    - [ 1373 ] Jython ClassLoader getResource does not work
    - [ 1506 ] Jython applies PEP263 pattern for determining source-code encoding on noncomments
    - [ 1630 ] threading.Thread lacks __tojava__ method
    - [ 1558 ] PyFunction to single method interface wrapping does not handle java.lang.Object methods
    - [ 1622 ] array type prevents __radd__ fallback

Jython 2.5.2b1
  Bugs Fixed
    - [ 1559 ] time.strptime broken for day of week for Sunday
    - [ 1614 ] minidom chunks the character input on multi-line values
    - [ 1615 ] Can't invoke Java method that takes a variable number of arguments with zero arguments
    - [ 1605 ] float preference over PyComplex as arg to __call__ breaks logic
    - [ 1586 ] weakref reference count leak when kwargs are used
    - [ 1601 ] Can't serialize PyCode object
    - [ 1551 ] Java objects cannot be copied by the copy module
    - [ 1375 ] XML SAX: attrs.get((None, 'attr')) gives NPE
    - [ 1488 ] sax JyInputSourceWrapper does not support unicode strings
    - [ 1510 ] minidom is not parsing comment information correctly
    - [ 1549 ] Wrapping an InputStream with a PyFile wrongly carries out line-ending translation.
    - [ 1583 ] xml.dom.Node.data returns bytestrings of decoded unicode
    - [ 1515 ] modjy sometimes adds None to the sys.path
    - [ 1507 ] modjy crashes if any query string parameters are not set with '='
    - [ 1473 ] modjy servlet doesn't import site-packages by default
    - [ 1474 ] modjy servlet doesn't call atexit handlers
    - [ 1225 ] socket.getservbyname/port() not yet supported
    - [ 1532 ] Cannot use docstring when defining class
    - [ 1530 ] BoolOp in multiple assign causes VerifyError
    - [ 1478 ] defaultdict & weakref.WeakKeyDictionary [TypeError: first argument must be callable]
    - [ 1487 ] Import of module with latin-1 chars fails on utf-8 file encoding
    - [ 1449 ] Ellipsis comparison different from Python 2.5 to Jython 2.5
    - [ 1493 ] tarfile.extractall() throws "AttributeError: 'module' object has no attribute 'chown'" when called by root
    - [ 1470 ] os.mkdir Errno difference from cpython
    - [ 1496 ] fix os.listdir errno for non-existing dirs
    - [ 1499 ] PostgreSQL datahandler should return Decimals instead of floats for NUMERIC/DECIMAL columns
    - [ 1477 ] os.setpgrp and posix.setpgrp fail with TypeError
    - [ 1396 ] Assigning os module funcs as class attributes incompatible with CPython
    - [ 1504 ] Inheriting twice from the same Java interface causes MRO problems
    - [ 1511 ] PySet doesn't support Java serialization
    - [ 1426 ] JSR 223 Bindings changes not taking effect and leaking between threads; unnecessary synchronization
    - [ 1548 ] Parentheses in CLASSPATH cause errors in jython.bat
    - [ 1576 ] files opened in 'a+' mode not readable
    - [ 1563 ] unicode() for Java objects working differently in 2.2 and 2.5
    - [ 1566 ] os.popen(cmd).read() returns `\r\n` as newline on Windows with Jython 2.5
    - [ 1517 ] TypeError: get_referrers
    - [ 1502 ] string-escape codec incorrect
    - [ 1534 ] new style object __dict__[name] ignored
    - [ 1479 ] xml parser file lock
    - [ 1582 ] com.ziclix.python.sql.PyConnection leaks memory
    - [ 1520 ] os.listdir doesn't return unicode when requested
    - [ 1483 ] optparse std module dies on non-ASCII unicode data
    - [ 1390 ] ihooks fails due to unimplemented methods in imp module
    - [ 1456 ] sys.trace/profile attributes cause: AttributeError: write-only attr: trace in PyAMF
    - [ 1385 ] generator.throw uncaught on new generator doesn't stop the generator
    - [ 1596 ] SynchronizedCallable does not report that it is callable [suggested fix]
    - [ 1557 ] jython.bat doesn't work in 4nt
    - [ 1567 ] [Windows] Wildcard Parameter * gets expanded to filename
    - [ 1594 ] Glob patterns like *.txt processed incorrectly on startup
    - [ 1356 ] [Windows] test_subprocess test_communicate_pipe_buf fails
    - [ 1595 ] [patch] CachedJarsPackageManager cannot write cache for packages in jar over 64k
    - [ 1522 ] repeated execution of external python scripts causing PermGen out of memory exception
    - [ 1251 ] select() fails when selecting on a file descriptor
    - [ 1233 ] couldn't make directories when installing django in jython on Windows
    - [ 1260 ] Why is asyncore.py so different?
    - [ 1236 ] Django 1.0.2 jython setup.py install fails in 2.5b1 (ok in 2.5b0)
    - [ 1263 ] importing * from java-class fails
    - [ 1252 ] StackOverflow when name referenced before global declaration and run as a script
    - [ 1275 ] Jython doesn't load directories of JARs
    - [ 1278 ] socket.py error wording nitpick
    - [ 1249 ] Trace function is not called with an exception event exactly when the exception occurs
    - [ 1282 ] Java serialization problem
    - [ 1289 ] os.path.isdir(path) return 0 instead of False
    - [ 1290 ] 600x slower network download speed with urllib.urlretrieve() or urllib2.urlopen() compared to CPython
    - [ 1299 ] NullPointerException without any clues
    - [ 1277 ] jython applets & jythonc
    - [ 1273 ] ImportError: No module named os
    - [ 1308 ] Calling sys.exit() in a spawned thread fails to exit.
    - [ 1346 ] compiler.transformer uses parser which is not defined
    - [ 1347 ] socket Level 6 not supported
    - [ 1321 ] distutils breakage with the setup.py of mercurial
    - [ 1310 ] Serialization problem for wrapped Java objects
    - [ 1600 ] jython dict() behaving differently from cpython's.
    - [ 1269 ] windows jython.bat fails in 2.5b2
    - [ 1266 ] PythonInterpreter does not have setOut(StringWriter)
    - [ 1283,1284 ] File resource leaks in pkgutil
    - [ 1246 ] KeyError: 'twisted.internet.reactor'
    - [ 1265 ] Possible problem with subclasses of Java classes, constructors, and reflection
    - [ 1124 ] os.popen variants hang when executed command produces a lot to stderr
    - [ 1291 ] select() crashes with IOException
    - [ 1317 ] list.count considers tuples and lists to be equal
    - [ 1297 ] Methods inherited from a Java class are not overridden properly
    - [ 1285 ] [2.5b3] respectJavaAccessibility = false makes some Java class method signatures inaccessible from Jython
    - [ 1254 ] jython.jar (2.5b1) conflicts with previous version (2.2)
    - [ 1238 ] randomly select() exception on 2.5b1
    - [ 1259 ] jython 2.5b1 trunk failing manage.py validate
    - Fix runtime issues during exitfuncs triggered via SystemRestart (such as
      during Django or Pylons development mode reloading)
    - Fix pickling of collections.defaultdict objects
    - Fix the cmath module to accept objects implementing the __float__ method
  New Features
    - Performance improvements around method invocation. 2.5.2 runs
      the richards benchmark 3x faster and the pystone benchmark 20%
      faster than 2.5.1
    - The posix/nt module was rewritten in Java and the performance of
      its often performance-critical stat function has significantly
      improved
    - Improved OSError errno messages on Windows
    - Slightly improved startup time (ongoing Issue #1380)
    - better readline module emulation (required for IPython support)
    - Python functions can be directly passed to Java methods that
       take a single method interface (such as Callable or Runnable)
    - Add google indexer (by Yin Wang and Steve Yegge)

Jython 2.5.1rc3
  Bugs Fixed
    - [ 1466 ] wrong handling of append only files

Jython 2.5.1rc2
  New Features
    - zxJDBC supports the with-statement: connections are committed or rollbacked; cursors are closed 
  Bugs Fixed
    - [ 1079 ] fixed regression on issue: twisted.python.threadable module: missing attribute '_RLock'
    - [ 1461 ] assert statement should lookup AssertionError using getglobal
    - [ 1425 ] distutils/util.py assumes too much posix
    - [ 1457 ] Cannot write an array in a file opened in r+b mode.
    - [ 1382 ] __cmp__ on certain types raises ArrayStoreException
    - [ 1443 ] Can't update() hashlib.sha1() with array.array('c')
    - [ 1444 ] Can't zlib.compress() with array.array('c')
    - [ 1458 ] Builtin codecs aren't available without standard lib

Jython 2.5.1rc1
  New Features
    - Upgraded to ANTLR 3.1.3
    - [ 1859477 ] Dynamically loaded ServletFilters like PyServlet
    - Built in JSR 223 scripting engine, with LiveTribe JSR 223 implementation for JDK 5
    - Jython "-J-classpath cp_args_here" now works as expected for unix shell.
  Bugs Fixed
    - [ 645615 ] cannot import through symbolic links
    - [ 1366 ] parsing of lambda expression fails
    - [ 1365 ] continuation lines fail in interactive interpreter
    - [ 1377 ] Event names shadowed by a field name on Java types leads to a NPE
    - [ 1381 ] Redundant declarations of interface implementation hides overridden methods
    - [ 1189 ] MD5 hash is incorrectly calculated when string contains non-latin chars and using python md5 lib
    - [ 1802339 ] Problem printing unicode when stdout intercepted
    - [ 1145 ] Jython 2.5 compatibility problem with JSR 223
    - [ 1400 ] Evaluating expression via JSR 223 ScriptEngine returns null instead of True/False
    - [ 1413 ] Array data type (PostgreSQL) is not supported (NPE)
    - [ 1434 ] Cannot get return code from a process started with os.popen with Jython 2.5 (worked in 2.2)
    - [ 1391 ] socket.getaddrinfo() breaks ftplib FTP client
    - [ 1409 ] JSR-233 engine version numbers backwards
    - [ 1408 ] JSR-223 engine doesn't implement I/O redirection
    - [ 1393 ] TypeError: _new_impl(): expected 1 args; got 0
    - [ 1415 ] ast Node creation fails with no arg constructors
    - [ 1405 ] Executing __run__.py from .jar throws exception(SystemExit: 0) in main when sys.exit(0) is called
    - [ 1439 ] Can't write() array.array
    - [ 1139 ] crashes on isinstance
    - [ 1430 ] Oracle JDBC Connection close
    - [ 1406 ] Parsing a simple PEP 342 coroutine crashes Jython 2.5
    - [ 1407 ] ClassCastException in plain Python coroutine
    - [ 1424 ] Relative imports do not work in some cases

Jython 2.5.0
  The same as rc4.

Jython 2.5.0 rc4
  Bugs fixed
    - [ 1354 ] core language failures in interactive interpreter
    - [ 1358 ] Simple program fails to parse in Jython 2.5rc3, but parses OK with CPython
    - [ 1357 ] no sys.executable when script runner is a relative link
    - [ 1338 ] Comparing Java objects to each other fails when classes of values do not match
    - [ 1363 ] Deep inheritance from a Java class causes MRO problems
    - [ 1333 ] attribute wrongly deemed 'write-only' if setter comes from an interface
    - [ 1364 ] SimpleHTTPServer.py contains call to missing os.fstat
    - [ 1367 ] PIpes (popen2) do not flush their buffer
    - [ 1368 ] '\xe4'.decode('utf-8') does not raise UnicodeDecodeError but returns u''
    - [ 1372 ] No default drive in Windows file paths
    - Fix file's repr with Windows paths
    - Fix urllib and urllib2 path handling on Windows
    - Fix r'\Jython25' not considered an abspath on Windows
    - Fix handling of raw unicode escapes
    - Fix mishandling of the bytecode's tagged mtime in zipimport and when
    recompiling due to stale bytecode
    - Fixed minor short term memory leaks in functions on some lists allocated
    inline
    - Updated imp.APIVersion to 23 as some compiler changes occurred since the
    last update.

Jython 2.5.0 rc3
  Bugs fixed
    - [ 1344 ] setName semantics of threading.Thread different to CPython
    - Fixed JLine console on cygwin
    - [ 1348 ] muti-threaded issue, maybe threads cannot exit

Jython 2.5.0 a0 - rc2
  Bugs fixed (new numbering due to move to Roundup)
    - [ 1188 ] Patch against trunk to handle SecurityExceptions
    - [ 1271 ] Bean property accessors in derived class override methods in base class
    - [ 1264 ] 'is not' test exhibits incorrect behaviour when wrapping Java objects
    - [ 1295 ] Setting a write-only bean property causes a NPE
    - [ 1272 ] ASTList ClassCastException
    - [ 1261 ] jython -c "import sys; sys.exit(1)" not giving correct exit code.
    - [ 1215 ] extra spaces in import statement break importing
    - [ 1126 ] ImportError raised for Java subpackages import
    - [ 1111 ] keyword arguments not supported on __import__
    - [ 1567212 ] Jython $py.class bytecode doesn't include the .py's mtime
    - [ 1024 ] Jython $py.class bytecode doesn't include the .py's mtime
    - [ 852818 ] Wrong error message when the second+ parameter to Java wrong
    - [ 1222877 ] duplicate keyword arguments
    - [ 1168 ] ast module not working
    - [ 1192 ] deserialization of Jython classes extending Java classes fails when called from Java
    - [ 1243 ] Running scripts from standalone jar with __run__.py broken
    - [ 1237 ] Asnycore does not seem to work in Jython 2.5 (b0 or b1)
    - [ 1257 ] Pickling (protocol 2) doesn't use overridden itervalues() on dict-derived classes
    - [ 1245 ] modjy passes HTTP headers as unicode objects to the WSGI app
    - [ 1258 ] select() semantics differ from CPython, causing pydoc HTTPd to fail
    - [ 1043 ] Special broadcast host address <broadcast> is not supported.
    - [ 1121 ] listening socket shutdown expects the wrong kind of socket
    - [ 1244 ] Problem letting system choose the port for binding UDP socket
    - [ 1241 ] Assignment to static variable shadows value
    - [ 1234 ] Java classes' MRO resolution can throw an NPE
    - [ 1231 ] 2.5b1 breaks XML DocumentBuilderFactory (in particular, Weblogic 10.3)
    - [ 1230 ] importing with '*' from java packages does not work with 2.5b1
    - [ 1242 ] Tuples allow member assignment
    - [ 1239 ] Package scanning seems to depend on import order in jython-2.5b1
    - [ 1235 ] java.awt.Frame - problem w/ attributes
    - [ 1240 ] Can't import _jython, but it's listed in the built-in modules
    - [ 1217 ] decompressing a malformed stream with zlib results in a java.util.zip.DataFormatException instead of a zlib.error
    - [ 1227 ] The cStringIO.StringIO.write implementation does not handle write/seek/write's correctly.
    - [ 1232 ] Inherited java bean properties not recognized correctly
    - [ 1229 ] os.utime fails in Jython2.5b1
    - [ 1228 ] Add version for 2.5b1 to Issue (Bug) tracker
    - [ 1051 ] socket does not define AF_UNSPEC and AI_PASSIVE constants
    - [ 1218 ] Socket timeouts on connect not honoured when timeout set through socket.setdefaulttimeout()
    - [ 1747126 ] CLASSPATH not searched correctly for python source modules
    - [ 1008 ] Jython broken on Java Web Start 1.6
    - [ 1181 ] Patch against trunk to make applets work again
    - [ 1122 ] os.kill is not implemented
    - [ 1154 ] socket.settimeout not working for recv
    - [ 1171 ] Creating a PyFile from an InputStream is broken.
    - [ 1211 ] Telnetlib.expect crashes when a timeout parameter is given.
    - [ 1182 ] Patch to Lib/socket.py to fix broken SSL
    - [ 1083 ] jython2.5a1 installer does not create "cachedir" directory
    - [ 1063 ] RuntimeError expected when stack overflows
    - [ 1205 ] list comprehension difference to python
    - [ 1166 ] TypeError: utimes(): 3rd arg can't be coerced to long
    - [ 1025 ] imp.find_module can't find builtin modules
    - [ 1758318 ] StackOverflow if __nonzero__ returns self
    - [ 1815110 ] eval and excec should accept mapping type for locals
    - [ 600790 ] Overriding automatically defined methods
    - [ 1201 ] Lack of Python line numbers in Java tracebacks
    - [ 1658599 ] headless installation not detected
    - [ 1161 ] imp.find_module can't find many modules (was: pylint & logilab ASTNG library)
    - [ 1199 ] zipimporter should be smarter about what files it tries to access
    - [ 1180 ] virtualenv broken on installed Jython
    - [ 1196 ] failure of dir() on instances of a class with __getattribute__
    - [ 1194 ] with_statement: context __exit__ not called for return
    - [ 1187 ] JYTHON_OPTS broken in jython.bat
    - [ 1758319 ] bool should not be subclassable
    - [ 1011 ] ant task to create launcher script
    - [ 1137 ] ArrayType missing in Jython 2.5a3
    - [ 1058 ] Carlo Verre's object.__setattr__ hack allows modification of built in types
    - [ 1222918 ] -C NONE causes exception
    - [ 1604258 ] copy.copy doesn't work on subclasses of newstyle classes
    - [ 1798554 ] zlib.__doc__ is not showing any output
    - [ 1798556 ] patch for :[ 1798554 ] zlib.__doc__ is not showing any output
    - [ 1003 ] struct packing inconsistent with CPython
    - [ 1052 ] __int__ returning PyLong = ClassCastException mayhem
    - [ 1167 ] random.py in standard library is broken in 2.5beta0
    - [ 1138 ] __file__ reflects original source location, not the pathname of the $py.class file
    - [ 1174 ] NPE on PythonInterpreter.eval()
    - [ 1173 ] undefined sys.prefix breaks initialization
    - [ 1177 ] utf-8 codec isn't?
    - [ 1835099 ] Bug in list.sort()
    - [ 1141 ] Incorrect __import__ calls
    - [ 1780767 ] Fix for [ 1768075 ] %c formats values outside of the
    - [ 1115 ] __lt__ in a derived list produces a StackOverflowError
    - [ 1062 ] Doctest does not work against unicode strings
    - [ 1783868 ] __ge__ or __gt__ of subclass of str --> StackOverflowError
    - [ 1125 ] not valid JAVA_HOME path
    - [ 1777567 ] Type of reflected methods is different for Java and Python
    - [ 513713 ] PyTableCode != PyCode
    - [ 526672 ] inspect not supported
    - [ 1754240 ] Error Message when attempting to bind to an in use Port
    - [ 1159 ] custom number and float: unsupported operand type(s) for *
    - [ 1158 ] compile() fails to recognize initial AST arg
    - [ 1155 ] inet_ntoa missing from socket
    - [ 1150 ] Nested generator expressions do not compile
    - [ 1113 ] Syntax + Compiler Error
    - [ 1157 ] Support pylint
    - [ 1156 ] rfc822.py incompatible with PyFile(java.io.InputStream istream)
    - [ 1128 ] java.lang.String should be mapped to PyUnicode, not PyString
    - [ 1111 ] keyword arguments not supported on __import__
    - [ 1114 ] Compiler Error - null pointer
    - [ 1134 ] Built-in functions should be of type types.BuiltinFunction
    - [ 1075 ] os.rmdir deletes file
    - [ 1136 ] Parsing a module fails if it ends with whitespace but no newline
    - [ 1131 ] repr not 100% CPython compliant
    - [ 1626844 ] fixes for failing binascii unit tests (2.3 branch)
    - [ 1838658 ] 'platform' module is not available
    - [ 1663711 ] 32767 characters is max string constant size
    - [ 1847091 ] del statement doesn't work on builtin modules
    - [ 1768969 ] filter doesn't return passed in subclass type
    - [ 1047 ] xml.dom.pulldom doesn't work
    - [ 1835109 ] Patch for [ 1835098 ] No decimal module available in jython
    - [ 1768970 ] pyget used instead of __getitem__ in __iter__, filter
    - [ 1768968 ] unicode bom isn't recognized to indicate unicode for parsing
    - [ 1785475 ] patch for bug IDs 1768970, 1782565 & 1783868
    - [ 1738411 ] Unable to change function sys.settrace
    - [ 1761111 ] Patch for PEP 292 Simpler String Substitutions
    - [ 1835119 ] 'platform' module is not available in jython
    - [ 1840479 ] coding: utf-8 and PEP 0263?
    - [ 1835098 ] No decimal module available in jython
    - [ 1717492 ] os.path.ismount incompletely implemented
    - [ 1067 ] class / function call behaviour (Jython vs. CPython)
    - [ 1091 ] Interactive Interpreter parser doesn't handle docstrings
    - [ 1022 ] Class definitions aren't provided a __module__ variable
    - [ 1120 ] invalid socket shutdown gives AssertionError, should be "transport endpoint not connected" socket.error
    - [ 1119 ] socket module has no attribute SO_ERROR
    - [ 1081 ] Jython 2.5a1 standalone installer hangs
    - [ 1123 ] Weird "unexpected at this time" error.
    - [ 1070 ] Standalone crashes with ZipException
    - [ 1077 ] Standalone installation fails
    - [ 1094 ] mismatched input class parsing error on "class" attributes of a java object
    - [ 1015 ] unicode string combination with % behaves unexpectedly
    - [ 1758279 ] Java classes exposed as Python classes but have no __module__
    - [ 1116 ] parser NPE on dotted (more than 1) attribute decorators
    - [ 1758325 ] str's formatter doesn't raise TypeError if given wrong type
    - [ 1095 ] AttributeError raised from __getattr__ method are swallowed
    - [ 1106 ] os.getpid() call missing
    - [ 1104 ] subprocess.Popen doesn't inherits os.environ to the spawned processes
    - [ 1041 ] AttributeError raised from descriptors __get__ method are swallowed
    - [ 1869347 ] TypeError while used derived class of long for comparison
    - [ 1072 ] Parsing error in file with white space at the end
    - [ 1045 ] PyBoolean.__tojava__(Object.class) should return a Boolean
    - [ 1044 ] Patch to support for BigIntegers and PyLong on the PostgresqlDataHandler
    - [ 1054 ] Patch: Fastpath for cursor.executemany()
    - [ 1053 ] Better string interpolation with unicode args
    - [ 1804011 ] classes extending dict can't be compared to dict
    - [ 1889394 ] UnicodeDerived's == is broken
    - [ 1060 ] deriveds don't support coerce
    - [ 1650802 ] _csv module
    - [ 1092 ] Parser problems on Django tree
    - [ 1050 ] Don't display banner/prompts when stdin is not a tty
    - [ 1069 ] setuptools: 'NoneType' object has no attribute 'startswith'
    - [ 1093 ] Installer 2.5a1 on MS Windows: Incorrect jar is referred to in bin/jython
    - [ 1605009 ] str subclasses can be used in raise
    - [ 1079 ] twisted.python.threadable module: missing attribute '_RLock'
    - [ 1088 ] Existing .py$class files from Jy2.2 cause error for Jy2.5a
    - [ 1086 ] Handling of """quoted strings""" for 2.5a differs from Jy2.2 and Py2.5
    - [ 1087 ] assert error message at end of Python script differs from Py2.5
    - [ 1082 ] asm parser can't handle PySourceColor module
    - [ 1767742 ] array.array('xx') should throw TypeError, not ValueError
    - [ 1076 ] 2.5a1 jython.bat doesn't work from Windows explorer
    - [ 1059 ] Possible to construct long(None)
    - [ 1873148 ] list.__iadd__ not switching to __radd__ on NotImplemented
    - [ 1056 ] Bad mro() overrides not caught
    - [ 1886758 ] from __future__ import division leaks out of namespace
    - [ 1879935 ] cPython/Jython different os.path.isabs() behavior
    - [ 1879984 ] cPython/Jython different os.path.realpath() behavior
    - [ 1879989 ] cPython/Jython different os.path.abspath() behavior
    - [ 1605006 ] __doc__ descriptor on new style class returned directly
    - [ 1639663 ] Patch for [ 1605006 ] __doc__ descriptor on new style class
    - [ 1803960 ] Attribute Error :- 'slice' object has no attribute 'indice
    - [ 1802863 ] zipfile.is_zipfile never returns False
    - [ 678557 ] cgi parsing of multipart/form-data broken
    - [ 1840038 ] patch for PyUnicode (fixes [ 1782565 ])
    - [ 1754222 ] raising SystemExit in a thread causes jython to quit
    - [ 811908 ] OutOfMemoryError causes exit without a call to a handler
    - [ 654142 ] NPE when converting __dict__ to list
    - [ 515497 ] method instance not unique key in dict
    - [ 718377 ] PyObject.__findattr_ throws NPE
    - [ 753790 ] struct module inconsistent with CPython
    - [ 1009477 ] Python collections should implement java interfaces
    - [ 1599050 ] fileinput os.fstat fix
    - [ 1676293 ] metaclass __init__ dct reference
    - [ 1038 ] Custom KeyErrors raised from __getitem__ are swallowed
    - [ 1039 ] AttributeError message on type instances doesn't match the CPython message
    - [ 1048 ] List Comprehension in finally throws NPE
    - [ 1037 ] float(None) throws AttributeError instead of TypeError
    - [ 1814929 ] Patch for [ 1814904 ] dict.update() doesn't accept arguments
    - [ 1814904 ] dict.update() doent accept the same arguments as constructor
    - [ 947306 ] 2.3a0 bug in weakref.WeakValueDictionary
    - [ 1016 ] Support socket.TCP_NODELAY
    - [ 1033 ] zlib.adler32 computes wrong values
    - [ 1797751 ] patch for :[ 1796272 ] partition and rpartition methods are
    - [ 1796272 ] partition and rpartition methods are missing in jython
    - [ 1040 ] KeyError.__str__ doesn't use repr()
    - [ 1036 ] make Jython set pass (almost) all CPython tests
    - [ 1035 ] set incorrectly raises TypeError when asked for superset/subset on non-set iterables
    - [ 1034 ] can't supply dict() for globals in FunctionType()
    - [ 1782565 ] Mismatch in repr of obj of unicode and subclass of unicode
    - [ 1510227 ] difference between repr() and __repr__()
    - [ 1501932 ] hasattr invokes __getattr__
    - [ 1775263 ] patch for bug [1768979]:hasattr,getattr
    - [ 1768979 ] hasattr, getattr allow unicode identifiers
    - [ 1780153 ] Fix for [ 1768075 ] %c formats values outside of the
    - [ 1768075 ] %c formats values outside of the size of a single char
    - [ 1803425 ] new builtin function :- sorted() - a new builtin sorted() act
    - [ 1758282 ] complex missing __coerce__
    - [ 1777684 ] int and long types are missing __coerce__
    - [ 1785415 ] patch for : [ 1777684 ] int and long types are missing __coe
    - [ 1514533 ] PyComplex in branch 2.3
    - [ 1783088 ] patch for :[ 1758282 ] complex missing __coerce__
    - [ 1758284 ] Complex parses complex('1' * 500) as (Infinity+0j)
    - [ 1779428 ] patch for : [ 1758284 ] Complex parses complex('1' * 500) as
    - [ 1671213 ] pickle/cPickle of Sets bug
    - [ 1019 ] Can't change new-style class __name__
    - [ 1013 ] jython crash with command: threading.local()
    - [ 1009 ] Patch to add 'at' to the repr string.
    - [ 1005 ] UDP Socket implicit create and unbound socket timeout
    - [ 1755346 ] imp missing lock_help
    - [ 1758322 ] List mutation during sort doesn't throw a ValueError
    - [ 1006 ] __import__ fromlist doesn't get processed
    - [ 1782548 ] UDP send blocks with reader thread present
    - [ 1895736 ] cleanup os.environ
    - [ 1717491 ] os.path.islink incompletely implemented
    - [ 1718450 ] Patch for os.path.islink bug 1717491
    - [ 1718975 ] Patch for os.path.normcase bug 1648449
    - [ 1648449 ] os.path.normcase broken in Windows
    - [ 1814527 ] patch for [1803425], [1758322], [1785366] and upgraded sort
    - [ 1861985 ] extending java classes from python code fails
    - [ 1871739 ] fix for Import Error statement to match CPython
    - [ 1870039 ] Debugging facility not behaving correctly with threads
    - [ 1757127 ] Jython hangs under PyDev debugger
    - [ 1839038 ] operations returning bools still return 1/0s
    - [ 1861973 ] importing modules from class broken
    - [ 1861974 ] patch for [1861973]. problems loading $py.class files
    - [ 1850722 ] socket.py - ClientCookie and ClientForm
    - [ 1482645 ] More OS recognition
    - [ 1509095 ] Can't open midi sequencer
    - [ 1850207 ] socket._fileobject - AttributeError: 'module' object has no
    - [ 1816103 ] org.python.core.PyDictionary should implement java.util.Map
    - [ 1721204 ] there is no threading.local()
    - [ 1841639 ] Filecmp module is not in jython
    - [ 1842984 ] Py.tojava(PyObject, Class) incorrectly marked deprecated
    - [ 1841445 ] NPE in PythonInterpreter.get(String name, Class javaclass)
    - [ 481404 ] CR removed on reading text on unix
    - [ 1159156 ] codec.open() does not work with different systemstates
    - [ 1261231 ] JButton('\u0F00') not working
    - [ 1674190 ] exec() destroys multibyte string
    - [ 1599900 ] Incorrect usage of String.getBytes()
    - [ 1611604 ] PyFile hand-edited code
    - [ 1839871 ] dict shouldn't call __setitem__ to initialise
    - [ 1816134 ] Issue with Key Comparison in Dicts
    - [ 1818353 ] sliceLength of PySequence returns 0 when step is sys.maxint
    - [ 1791931 ] slice should be a type
    - [ 1812122 ] NullPointerException when rethrowing an exception
    - [ 1814678 ] Lack of some public functions' names in __all__ (javaos.py)
    - [ 1796415 ] javaos.py missing removedirs function
    - [ 1796425 ] javaos.py missing renames function.
    - [ 1838358 ] Improve Resolution in time.clock()
    - [ 1818393 ] why using Deprecated method in PyString?
    - [ 1783692 ] Implementation of tempfile with secure files
    - [ 1755344 ] tempfile missing mkdtemp
    - [ 1817908 ] Broken link for corner icon in html documentation
    - [ 1831710 ] PyFileCloser throws NullPointerException on shutdown
    - [ 1744567 ] Simultaneous read & write on socket FileWrapper causes hang
    - [ 1806980 ] os.path.join ignores empty string
    - [ 1812913 ] File read converts \r to \n
    - [ 1781500 ] Metaclasses don't get passed a '__module__' in attrs
    - [ 1801802 ] JavaImportHelper not thread safe
    - [ 1800378 ] object.__unicode__ should it exist?
    - [ 1768982 ] sys.exc_clear is missing
    - [ 1735774 ] Redirecting stdout/err with os.popen fails if cmd is unicode
    - [ 1763263 ] os.utime(path, None) doesn't work (incl. a patch)
    - [ 1758904 ] I added doc strings for functions in os module (javaos.py).
    - [ 1768074 ] str.replace doesn't handle an empty string to be replaced
    - [ 1799328 ] Unicode string interpolation doesn't work
    - [ 1773865 ] Patch for [1768990] pickle fails on subclasses
    - [ 1768990 ] pickle fails on subclasses of builtin types
    - [ 1782493 ] On cli $ ./jython --version missing java version number
    - [ 1783153 ] Patch: compatibility with Java 1.3 for Jython 2.2
    - [ 1755361 ] file missing 'U' universal newline mode
    - [ 1782856 ] Error in zxJDBC.Timestamp()
    - [ 1767194 ] Wrong namespace in xmllib in 2.2rc3 (patch included)
    - [ 1783803 ] patch for bug [1775893] :in keyword
    - [ 1775893 ] in keyword does not use dict.has_key()
    - [ 1783960 ] can not exclude parts from installation
    - [ 1785638 ] ImportError from zip without source
    - [ 1783554 ] CPython compatible zipimporter
    - [ 1775078 ] Fix binary operations on str/unicode/lists/tuples
    - [ 1781556 ] Support list.extend(iterator), and other sequence fixes
    - [ 1784564 ] Add PyLong.asInt
    - [ 1768984 ] sys.builtin_module_names is missing
    - [ 1768988 ] isinstance, issubclass allow a StackOverflow
    - [ 1291509 ] cPickling bug
    - [ 1758315 ] org.python.modules.operator lacks is and is_not functions
    - [ 1758312 ] date and time objects fail to pickle
    - [ 1758317 ] bool objects fail to pickle

  Incompatible Changes
    - The python.prepath property has been removed; use python.path instead.
    - To implement the Java Map interface, PyDictionary.values now returns a
    Collection instead of a PyList
    - The -E codec command line option (use a different codec when reading from
    the console) has been changed to -C codec
    - import of Python modules does not imply the import of child modules, though
      import of Java packages still does, see email thread with Guido van Rossum, 
      Samuele Pedroni, and Frank Wierzbicki:
      http://www.mailinglistarchive.com/python-dev@python.org/msg07683.html

  New Features
    - PyDictionary now implements Map so it may be passed to any Java function expecting a Map.
    - modjy integrated into core 
    - The interactive interpreter now uses JLine by default
  Ported Modules
    - _ast
    - cmath
    - collections
    - csv
    - filecmp
    - functools
    - hashlib
    - itertools
    - threading.local
    - zipimport

Jython 2.2.2 rc1
  Bugs fixed (new numbering due to move to Roundup)
    - [ 1048 ] List Comprehension in finally throws NPE

  Bugs fixed (old sourceforge numbering)
    - [ 1806980 ] os.path.join ignores empty string
    - [ 1744567 ] Simultaneous read & write on socket FileWrapper causes hang
    - [ 1831710 ] PyFileCloser throws NullPointerException on shutdown
    - [ 1817908 ] Broken link for corner icon in html documentation
    - [ 1850722 ] socket.py - ClientCookie and ClientForm (and urllib2)
    - [ 1841445 ] PythonInterpreter.get(String name, Class javaclass) throws 
    an NPE if name isn't defined
    - [ 1839871 ] dict calls __setitem__ on subclasses in initialization
    - [ 1816134 ] str uses its own __eq__ instead of deferring to subclasses
    - [ 1796425 ] os.renames missing
    - [ 1796415 ] os.removedirs missing
    - [ 1814678 ] os.__all__ missing many functions
    - [ 1812122 ] NullPointerException when rethrowing an exception
    - [ 1830916 ] PyException doesn't store causal Java exception

Jython 2.2.1
  Identical to 2.2.1 rc2

Jython 2.2.1 rc2
  Bugs fixed
    - Python files are parsed using the JVM's default encoding
    - [ 1800378 ] __unicode__ ignored on subclasses of builtin types
    - [ 1801802 ] JavaImportHelper not thread safe
    - python.console.encoding is silently ignored if the JVM doesn't support the given encoding

Jython 2.2.1 rc1
  Bugs fixed
    - Reading and writing on files would run data through the JVM's default charset
    - Include the row number where an exception occurred while using a zxJDBC cursor
    - [ 1766527 ] in keyword doesn't work on os.environ
    - [ 1767194 ] xmllib applies default namespace to attributes incorrectly
    - [ 1768074 ] str.replace doesn't handle an empty string to be replaced
    - [ 1775893 ] in keyword does not use dict.has_key()
    - [ 1782493 ] jython --version doesn't show the java version number
    - [ 1782856 ] zxJDBC.Timestamp returns hours in AM/PM not 24 hour time
    - [ 1783960 ] can not exclude parts from text-mode installation
    - [ 1799328 ] string formatting doesn't call __unicode__ on %s in unicode objects 
    - [ 1763263 ] os.utime(path, None) doesn't work (incl. a patch)
    - [ 1758904 ] I added doc strings for functions in os module (javaos.py).
    - [ 1735774 ] Redirecting stdout/err with os.popen fails if cmd is unicode
    - [ 1773865 ] Patch for [1768990] pickle fails on subclasses
    - [ 1783153 ] Patch: compatibility with Java 1.3 for Jython 2.2

Jython 2.2
  Identical to 2.2 rc3
Jython 2.2 rc3
  New Features
    - Added telnetlib from CPython
    - Added cpython_compatible_select to select.  See
    http://wiki.python.org/jython/SelectModule for information on when
    to use it.
    - Several more java.nio exceptions are mapped to their corresponding
    Python error codes when thrown.
  Bugs fixed
    - recv on closed sockets threw an exception instead returning the
    empty string
    -  A PySystemState being garbage collected caused System.out and
    System.in to be closed.  This would cause 'print' to stop working.
    - Closing a FileWrapper on a socket closes its underlying socket
    - Sockets just have their [In|Out]putStreams closed instead of being
    properly shutdown by shutdown()
    - SO_REUSEADDR is reset on sockets from a server socket's accept call 
    causing later binds to the server socket's port to fail.
    - Client sockets that have bind called before connect don't respect 
    SO_REUSEADDR
    - [ 1758838 ] execfile() throws a NullPointerException in the interactive
    console

Jython 2.2 rc2
  Bugs fixed
    - [ 931129 ] jython -jar some-path/test.jar fails
    - [ 1719528 ] -c doesn't put the empty string in sys.path
    - [ 1746957 ] Weird 'uu' prefix for unicode
    - [ 1747092 ] Failed imports should not be "cached"
    - [ 1742770 ] urllib.urlopen('http://inv') -> UnknownHostException
    - [ 1745068 ] select gives confusing message when given blocking sockets
    - [ 1744775 ] umlauts displayed incorrectly in installer
    - timeouts on socket client connects were not being honoured
    - a float could not be passed as milliseconds to select.poll.poll

Jython 2.2 rc1
  New features
    - Completely rewritten socket module and new select module using java.nio 
    which allows the use of SSL and non-blocking sockets.
    - Explicit imports of Java classes like 'from java.net import URL' or 
    'import java.net.URL' work with package scanning disabled.
  Bugs fixed
    - [ 1708080 ] float("1d") -> 1.0 (not ValueError as expected)
    - [ 1661700 ] os.path.abspath raises IOException if drive not accessible
    - [ 1662689 ] os.path.abspath eliminates symlinks
    - [ 1717498 ] os.path.splitdrive does nothing for Windows drives
    - [ 1622207 ] _weakref.ref(o) only works if the argument is hasheable
    - [ 1735864 ] Parser not threadsafe
    - [ 1722306 ] OverflowError in UDP Socket Implementation
    - [ 1348645 ] socket.py send() requires too many arguments
    - [ 998602 ] urllib : https request does not work
    - [ 621180 ] module socket _udpsocket close bug

Jython 2.2 beta2
  New features
    - All functions in __builtin__ are new style functions instead of reflected
      functions
    - Classmethods added to newstyle classes
    - array is a newstyle class
    - org.python.util.JLineConsole provides readline-like functionality with 
      JLine without requiring native readline
  
  Bugs fixed
    - [ 1599012 ] current directory is prepended to entries in sys.path
    - [ 1654484 ] Initializing PyJavaClass for java.lang.OutOfMemory causes a further OutOfMemory problem
    - [ 1661679 ] types.UnicodeType is str
    - [ 1659819 ] Joining unicode items with string doesn't create unicode
    - [ 1603253 ] Thread's setDaemon setting does not work
    - types module uses newstyle classes
    - [ 1671134 ] '%s' % u'x' returns str object
    - [ 1672800 ] __import__('module', None) raises AttributeError
    - [ 1576036 ] Fix: SyspathJavaLoader file reader causes importerror
    - [ 1605847 ] co_filename set in bytecode doesn't match __file__
    - [ 1603312 ] subclasses of int raise a TypeError when given large value
    - [ 1603315 ] str missing object keyword arg
    - [ 1603747 ] Multiple InteractiveInterpreter share same setErr/Out
    - [ 1619040 ] dict.fromkeys() should take iterable
    - [ 1658647 ] type(x) calls x.__class__.__init__
    - [ 1699556 ] SAXException descends from Java's Exception instead of Python's
    - [ 1603686 ] Unmarshaling long-error
    - [ 1230674 ] eval with from future does not work through import
    - [ 663592 ] Problems calling an overridden class in the constructor
    - [ 448398 ] open('test.txt', 'w').write('test') fails
    - [ 1671373 ] A "$_PyInner.class" file in a package causes import to fail
    - [ 1671431 ] dir function does not work with database connection object
    - [ 1713513 ] os.environ fails in Windows Vista JDK 1.6_01
  Patches applied
    - [ 1681774 ] str.decode, unicode.encode and str(u'') fixes
    - [ 1682423 ] Convert PyModule to a new-style class
    - [ 1682498 ] Fix int(None) raising an AttributeError
    - [ 1684172 ] Changes to make compileall work
    - [ 1628469 ] fixes for failing builtin tests

  
Jython 2.2 beta1
  New features
    - much improved support for __unicode__ especially in the parser (u"string" and
        friends now result in a PyUnicode object)
    - added datetime support using the pure python datetime.py from cpython non-dist.
    - new-style classes and their instances are Java serializable
    - most new-style builtin types can be pickleds
    - __slots__ for new-style classes
    - xml modules from pyxml re-added
    - comparison operations between subclasses of
        builtin types tries the subclass first even if it's on the right side 
  Bugs fixed.
    - Modules that throw exceptions while being imported aren't left
       in sys.modules
    - Don't allow sys.recursionlimit to be set below 0
    - [ 1533624 ] NPE thrown building traceback for a call that jumps
       threads
    - [ 1531644 ] import * makes java exception uncatchable
    - [1243049, 1218089] Can't subclass builtin types in 2.2a1
    - [1256506] Importing directory module with 12+ char name fails
    - [1512745] Allow arbitrary precision for formatted strings,
        but only 250 chars for decimal, integer and long
    - [1506749] Instance __dict__ are unassignable
    - [1599004] several fixes to get the sha module up to speed
    - [1616493] unicode objects can't be passed to os.path
        methods
    - [ 979157 ] Stack traces untrimmed
    - [ 1299032 ] os.getenv out of sync with cpython
    - [ 738951 ] jython slice behavior differs from python in __getattr__
    - [ 610576 ] Impl of abstract method not found
    - [ 1374088 ] keyword args to dict() constructor ignored
    - [ 730082 ] new can't create unbound methods
    - [ 1382581 ] double(s) read inaccurately from database
    - [ 1603312 ] subclasses of int raise a TypeError when given large
       value
    - [1465476] bad parenthesis nesting terminates interpreter
    - [ 1227282 ] Deadlock between PythonTraceFunction.safeCall() and
       imp.import
    - [ 1421812 ] Jython 2.2a and 2.1 imports directories as modules
    - [ 480017 ] Proxy super classes are loaded from syspath, not the
       proxy's classpath
    - [ 628315 ] problem with Java synchronized lists
    - [ 1284344 ] __file__ compiled into .py.class file
    - [ 610576 ] Impl of abstract method not found
  Patches applied.
    - [906256] Follow spec for read modes of open()
    - [868514] yield in finally block -- yield in nested try:except:
    - [1542997] Only evaluate the second expression in an assert
        if the first expression is false
    - [1612711]: add iterkeys, itervalues and iteritems to
        PyStringMap
    - [ 1267425 ] make cStringIO work with gzip.py
    - [ 1361317 ] __set__ failing on PyProperty
    

17-jul-2005 Jython 2.2 alpha1

  New features
   - Integrated patch (by Aleks Totic) that allows to use the Python parser
     outside of Jython. PythonGrammar grows two constructors, one of which 
     _must_ be used:
        PythonGrammar(CharStream stream,IParserHost host)
        PythonGrammar(PythonGrammarTokenManager tm, IParserHost host)
     They both takes an impl of org.python.parser.IParserHost to which 
     literal building is delegated. org.python.core.parser contains the
     source of the impl used by Jython.
   - New-style classes
   - PEP 302 implementation
   - Java collections integration
    - finished long/int unification -- PyObject.__int__() now returns a
      PyObject (which could be a PyInteger or a PyLong).
    - dict and list conform to CPython 2.3 behaviors (such as the 3 arg 
        list.index()).
    - new-style conversion of tuple, float, file and str.
    - Preliminary work on a unicode type.
    - Imported tempfile.py and userlist.py from CPython 2.3 and applied some
        small adjustments to get tests to pass.
    - Reworked message construction for TypeError exceptions
      (such as the exceptions generated from operations like [] + "").

31-jul-2003 Jython 2.2 alpha0

  New features
   - Iterators (pep-234).
   - Changing the Division Operator (pep-238)
   - Implemented a new compiler AST.
   - Quitting (Ctrl-Z/D) Jython in interactive mode will force the running JVM
     to exit, even if there are non-daemon threads (e.g. AWT), this is likely 
     the expected behavior.  The behavior for (non-interactive) scripts is 
     unchanged and still matches that of Java programs.
   - OutOfMemoryError can be caught, also matching MemoryError, that means
     that a caught PyException.value.__tojava__(Throwable.class)
     can potentially be a OutOfMemoryError instance. This is different from
     the old aborting behavior (System.exit was called) [change needed to pass
     a test in CPython test_b1].
          
  Bug fixes.
   - Renamed the use of the java1.4 reserved words 'assert'.
   - [ #222805 ] multi-line statements in the JPython interpreter
   - [ #495866 ] need dynamic scale for BigDecimal
   - [ #499973 ] isql.Prompt can't be written to stdout.
   - [ #508111 ] jythonc generates invalid statements
   - [ #511493 ] jreload truncates large class files
   - [ #515894 ] Behaviour of "+=" stm. is different from
   - [ #517237 ] Binary ops with int and long fail
   - [ #521704 ] no errno module
   - [ #522423 ] cStringIO has no reset() method
   - [ #522558 ] list() is broken 
   - [ #522828 ] struct.pack('>NNs', v) fails for NN > 20
   - [ #529242 ] Python singletons deserialization bug
   - [ #532747 ] for i in iter(d)
   - [ #533354 ] bug in xml.dom.minidom.parseString
   - [ #533541 ] send() on _udpsocket fails
   - [ #544891 ] problems with socket.py
   - [ #545235 ] unexpected match with re
   - [ #549107 ] .__doc__ doesn't work in jython
   - [ #562943 ] os.path.getmtime misbehaves on nonfile
   - [ #567844 ] list() does not make a shallow copy
   - [ #572769 ] Blank input lines break readline console
   - [ #573784 ] popen does not work
   - [ #573791 ] os.system partly  broken
   - [ #575110 ] Multiple for's on Collection broken
   - [ #577395 ] Outer finally not executed at return
   - [ #581785 ] bug in 4DOM
   - [ #582618 ] Case insensitive re.match fails
   - [ #608628 ] long(java.math.BigInteger) does not work
   - [ #609505 ] SQLWarning tuples not populated
   - [ #620978 ] Variable default for Options.caseok
   - [ #625364 ] sys.last_traceback not set?   
   - [ #631017 ] Private fields mismangled
   - [ #631035 ] Negative repeat cause java exception.
   - [ #631430 ] read(-1) uses wrong fileposition.
   - [ #636381 ] Match Error for +? pattern element
   - [ #654863 ] string.split behaves differently
   - [ #668194 ] broken non greedy regular expressions
 
31-dec-2001 Jython 2.1 final

  Bug fixes.
   - [ #493359 ] Installer should include <EXIT> button
   - [ #495602 ] os.path.dirname() can result in an NPE
   - [ #495604 ] imp.find_module fails when None is 2 arg

21-dec-2001 Jython 2.1 beta 2

  New features.
   - support for callproc() in zxJDBC is now available for most simple
     stored procedure calls.

  Bug fixes.
   - [ #451552 ] case insensitivity on import causes prob
   - [ #456926 ] PackageManager doesn't work correctly
   - [ #484949 ] __import__(_) does unwanted rel search
   - [ #488632 ] -c sys.argv diff
   - [ #489168 ] Parse error, java traceback
   - [ #489836 ] Private names is not mangled
   - [ #490157 ] string.splitlines() - incorrectly splits
   - [ #490230 ] NotImplemented not implemented
   - [ #490961 ] PyFile.java requires JDK 1.2
   - [ #490962 ] Typo in PyFile.java
   - [ #490963 ] Please update ReadlineConsole.java
   - [ #494514 ] Python object not gc()'d
   - [ #495458 ] multi level import from .zip file.
   - [ #495870 ] zxJDBC now only prepares statements with params.

03-dec-2001 Jython 2.1 beta 1

  New features.
   - The weakref module is now available.
   - The sys.exitfunc hook is called on exit and the sys.excepthook
     is called when an exception occur.
   - A CPython compatible xreadlines module.
   - Support for os.environ and os.system() on common platforms.
   - Includes zxJDBC for Python DB API 2.0 compatibility.

  Bug fixes.
   - [ #438297 ] SimpleHTTPServer does not work
   - [ #440660 ] using nested java cls @ level >2 fails
   - [ #448485 ] Tuple unpacking raises KeyError
   - [ #448523 ] Support "ASCII" as builtin codec.
   - [ #449316 ] ArrayList()[0] should raise IndexError
   - [ #449956 ] jythonc 2.1a3 --package problem
   - [ #450938 ] time module requires JDK 1.4
   - [ #451746 ] jythonc --deep pjy$packages problem
   - [ #452526 ] traceback lineno is the except line
   - [ #452947 ] Class of innerclass inst <> innerclas
   - [ #453301 ] jythonc --compileropts on Windows
   - [ #457614 ] pls change &copyright; to (c) in sources
   - [ #458945 ] Missing 'lastindex' on match objects
   - [ #462280 ] builtin method as a class variable
   - [ #467826 ] SHA digest() method doesn't work
   - [ #473676 ] cStringIO bug
   - [ #475445 ] incompatibility with python
   - [ #475666 ] __nonzero__ exceptions must be ignored
   - [ #476580 ] 'del obj.non_member' : wrong exception
   - [ #476772 ] shutdowns in jython / atexit
   - [ #477608 ] os.path.getmtime() missing
   - [ #477768 ] ord([123]) 21a3
   - [ #477793 ] os.utime() is missing.
   - [ #480373 ] Can't find _PyInner with classloader.
   - [ #480390 ] main() does not throw exceptions
   - [ #484181 ] command line args in dos
   - [ #485558 ] Synchronization bug in sys.initialize.
   - [ #485968 ] cStringIO.softspace is not assignable.

29-jul-2001 Jython 2.1 alpha 3

  New features.
   - A settable console encoding will allow windows users to enter
     national characters at the command prompt.
   - Non-public classes are available when respectJavaAccessibility is false
   - The names of zip- and jarfiles can be added to sys.path.

  Bug fixes.
   - The standard python library files are from CPython-2.1.1
   - A complete list of fixed bugs can be found on SF:
        http://sourceforge.net/tracker/?group_id=12867&atid=112867
     Select Status=Any and Group=Fixed in 2.1a3

18-jul-2001 Jython 2.1 alpha 2

  New features.
   - Added ReadlineConsole class. This class will make it a lot easier
     to integrate Bablok's readline support.
   - Display Hook for Interactive Use (pep-0217)
   - Added zlib, gzip and zipfile modules.
   - Added nested scope to jythonc (pep-0227).

  Bug fixes.
   - Fixed obscure __import__ error message #437800
   - Prevent a NPE during import when running with a security manager
   - Fixed multi-level Java method overriding #222819.
   - Fix for dependency problem with jythonc. #415933
   - Fix a lost syntax error when auto importing submodules.
   - Use quotes around classpath, but only for win+jdk1.1.
   - Find the complete list of fixed bug on SF:
        http://sourceforge.net/tracker/?group_id=12867&atid=112867
     Select Status=Any and Group=Fixed in 2.1a2


14-mar-2001 Jython 2.1 alpha 1

  New features.
   - Improve speed when indexing a string and iterating over a string
     in a for loop.
   - Reworked coercing model (pep-0208)
   - Added {}.popitem().
   - Improved speed for python files by buffering the RandomAccessFile.
   - Added function attributes (pep-0232)
   - Rich comparison (pep-0207)
   - Updated cPickle to handle CPython compatible unicode strings.
   - Updated sre to CPython-2.1a1
   - Added the "new" module
   - Added a PyServlet class to the util package.
   - Warning framework (pep-0230).
   - Added sys.add_classdir and sys.add_extdir.
   - Added nested scope to the interpreter (pep-0227).

  Bug fixes.
   - Allow self referencing adapters to be collected when using weak
     tables.
   - Added workaround for a reader bug in MRJ22Jitc.01.
   - Fixes #127340 where serializable parameter received a PyObject
     instead of the wrapped java object.
   - Include a LineNumberTable in the compiled class files.
   - Fixed a java version test bug in the installer.
   - Added workaround for class initialization bug in MRJ2.2.4
   - Added support for three argument getattr() calls.

17-Jan-2001 Jython 2.0 final release

  Bug fixes.
   - Install the correct image for the local documentation.
   - Added os.linesep field.

15-Jan-2001 Jython 2.0 release candidate 1

  New features
   - Experimental support for reloading java packages. Thanks to
     Samuele Pedroni for all his work on the Jython/Java integration.

  Bug fixes.
   - Prevent a NPE when a .jar on the classpath is corrupt. Instead
     a message with the original IOException is printed.

10-Jan-2001 Jython 2.0 beta 2

  New features
   - Added socket.getfqdn(). Thanks to Brian Zimmer for the patch.

  Bug fixes.
   - Fixed innerclass names with '$' #127200
   - Fixed a bug where final methods were overridden in proxy #127201.
   - Fixed a bug in exec which allow a fileobject to be passed in.
     Thanks to Brian Zimmer for the patch.

31-Dec-2000 Jython 2.0 beta 1

  New features
    - Installer logo by Ivan Kougaenko. The logo content is still
      open, so submit you suggestions.
    - The default packages selected in the installer are now better
      attuned to the normal user (as opposed to the jython devers).

  Bug fixes.
    - Fixed a NPE when a class is defined in non-module namespace.
    - Fixed a compilation problem when using JDK1.2.x
    - The installer now creates a usable Uninstall.class.

25-Dec-2000 Jython 2.0 alpha 3

  Bug fixes.
    - Fixed a bug that caused Infinite recursion in subpackage
      import
    - Fixed conversion error when a long is converted to a java double.
    - Fixed a bug where an attribute in a package __init__.py would
      hide a submodule.
    - Fixed missing quotes around the path to java.exe in jython.bat
      for windows.
    - Include missing re.py in installer.
    - Added threading and atexit modules from CPython2.0.

17-Dec-2000 Jython 2.0 alpha 2

  New features.
    - Added -v (verbose) option to jython command. It will trace
      import statements. Use three -v's for maximum information.
    - Added new registry option python.options.internalTablesImpl
      which is a list of choices (':' separated) for internal
      tables implementations. These tables contain the mapping of
      classes to PyJavaClasses.
      Long running applications that unloads classes can avoid a
      memory leak by setting the property to "weak" or "soft".
      That will use a table implementation which use weak or soft
      references.
    - Use a SecureClassLoader for loading compiled python modules.
      This should allow jython to be used with the java plugin and
      its fine grained security.

  CPython-2.0 compatibility
    - Added support for formatting of long values in "%d %x %X %o".
      The support does not match CPython2.0 exactly, but matches
      what CPython2.1 will do.
    - The \x escape will only eat two hex characters and will
      always create a character with values < 256. Use the \u
      escape for high-byte values.
    - A ucnhash module to support the \n{name} escape.

  Backward incompatibility:
    - The python.path property is appended to sys.path instead of
      being inserted at position 1 in sys.path.

  Bug fixes.
    - Package relative import works in jythonc, at least when the dotted
      package name match the directory structure.
    - Fixed oct(0) to return "0"
    - Added a os.__file__ attribute. CPython's site.py expects that.
    - Fixed a exception when calling int("0", 16)
    - Delay closing a socket until all sock.makefile() files are closed.
    - Avoided a duplicate call to Class.getMethods(). This will improve
      performance.
    - Allow from import * to modify the locals in a function (bug 122834).
    - Classes with the same name do no longer clash (bug 122820).
    - Avoid a memory leak where many threads get started and stopped. The
      fix only works on java2.

26-Nov-2000 Jython 2.0 alpha 1

  New features.
    - Integrate the free ORO regular expression matcher from the apache
      project.

  CPython2.0 compatibility, including
    - List comprehension.
    - Extended call syntax.
    - Extended print statement
    - Augmented assignment.
    - Unicode support libraries and codecs.
    - sre unicode regular expression.

  Some backward incompatibility is introduced:
    - The user configuration file is now called <user.home>/.jython
    - Text files will pass data read and written through the default
      codecs for the JVM. Binary files will write only the lower eight
      bits of each unicode character.
    - arrays passed to java code will no longer autocoerce just
      because the elements can be autocoerced.
    - The precedence of java loading have changed. Now the sys.path
      is searched for python modules before the CLASSPATH and sys.path
      is searched for java class and java packages.
    - The builtin exceptions are always classbased. -X is disable.
      User exception can still be strings.

  Bug fixes.
    - Many, including the errata.
    - Now the content of a java package is the union of the content of all
      locations with the corresponding valid hierarchical name
      from dirs and jars of CLASSPATH (and sys.path for dirs); i.e.
      from jpkg import * works for jpkg in a dir too.

  Improved CPython 2.0 compatibility
    - codecs module
    - sha module.

26-Jan-2000 JPython 1.1 final released

  - Only one small CPython compatibility patch to os.mkdir() and
    os.makedirs() -- optional `mode' argument, which is ignored.

21-Jan-2000 JPython 1.1 release candidate 1 released

  New JPython features and bug fixes
    - Race conditions when creating multiple PythonInterpreter objects
      in an embedded multithreaded Java application have been fixed.
    - Recursive print of a module's namespace no longer overflows the
      JVM stack.
    - Fixed backslashing of quotes inside triple quoted strings (Finn
      Bock).
    - Fixes to read(int) method on file objects, which used to return
      the empty string before EOF was seen.
    - Class-based exceptions are used in frozen (jpythonc) modules.
    - Duplicate argument names in a function definition raise the
      appropriate SyntaxError.
    - os.path.getsize() has been added.
    - mutability of tuples under some situations has been fixed.
    - dictionary insertion order affecting dictionary equality has
      been fixed (Finn Bock).
    - Using the --package option with jpythonc has been fixed.

  Improved CPython 1.5.2 compatibility
    - optional sizehint argument implemented for readlines() method on
      file objects.
    - Better compatibility in %g formatting of floats.
    - sys.stdout.softspace is now writeable.
    - re.VERBOSE/re.X flags are implemented.
    - traceback object's reprs are CPython conformant.
    - In module os, os.error is equivalent to the builtin OSError.
      Also, listdir(), mkdir(), makedirs(), remove(), rename(), and
      rmdir() raise OSError directly.
    - os.stat() raises an OSError if the file is missing.

28-Oct-1999 JPython 1.1beta4 released

  New JPython features and bug fixes
    - fixed a bug related to loading anonymous inner classes (PR#201).
      This is an experimental patch.  See registry file for entry
      python.options.extendedClassLoader
    - fixed Java exceptions when calling apply() with a bogus 3rd
      argument (PR#208)
    - fixed a 1.1beta3 problem with method objects having their
      im_self mysteriously changed out from under them (PR#186).
    - fixed problems with Python classes being deeply derived from
      Java classes and interfaces (PR#178, PR#195).
    - Improved memory footprint when using exec().
    - Dead threads are now reaped from thread state cache (Drew
      Morrissey).
    - Tuples, dictionaries, and strings now use fast method lookup
      mechanism.

  Improved CPython 1.5.2 compatibility
    - md5 module supported (no need to download anything extra)
    - dir() on function objects now returns a list containing __doc__,
      func_doc, __namme__, func_name, func_globals, func_defaults,
      func_code.  __doc__/func_doc is writable (but not func_defaults
      and func_code, which are writable in CPython). (PR#192)
    - dir() on code objects returns a list containing co_name,
      co_argcount, co_varnames, co_filename, co_firstlineno, co_flags.
      Not supported: co_nlocals, co_code, co_consts, co_names,
      co_lnotab, co_stacksize.  All attributes are read-only.
    - dir() on method objects returns a list containing im_self,
      im_func, im_class, __doc__, __name__.  These attributes are
      read-only.

22-Sep-1999 JPython 1.1beta3 released

  New JPython features and bug fixes

    - JPython can now optionally access non-public members of Java
      classes.  By setting the registry entry
      python.security.respectJavaAccessibility=false, JPython can
      access private, package-private, and protected fields, methods,
      and constructors.  By default, normal Java access rules are
      followed, i.e. only public members can be accessed.  This
      feature only works if running with Java 1.2.  Thanks to Tony
      Plate for his initial implementation.
    - A new framework for looking up the methods for builtin types has
      been enabled.  This can speed up method calls by a factor of 2.
      The feature is currently experimental and has only been
      implemented for list objects, but will be implemented for other
      builtin objects for the next release.
    - Some workarounds for weird JIT bugs have been added, but this
      may not fix all problems related to running JPython under JVMs
      with JIT enabled.
    - A wrapper for a free md5 builtin module is included, although
      the md5 implementation is not.  See the comment in
      org/python/modules/MD5Module.java for details.
    - New semantics for registry key python.modules.builtin (and
      correspondingly the org/python/modules/Setup.java file).

  Improved CPython 1.5.2 compatibility

    - sys.modules['__builtin__'] and "import __builtin__" has been
      fixed.
    - Builtin methods and functions now have the standard __name__,
      __doc__, __self__, and __members__ attributes.
    - Dictionaries and lists now have a __methods__ attribute, and
      dir({}) or dir([]) return the list of members.
    - repr(8to16bitstring) now prints standard octal escapes for 8bit
      characters.  It still prints hex escapes for 16bit characters.
    - Added abspath() to os.path (i.e. javapath)
    - Code objects now have a co_flags attribute
    - Frame objects now have f_trace attribute, and dir(frame) works
    - None() now raises a TypeError
    - tuple(somelist) immutability patch
    - re match objects now have groupdict() method
    - Finn Bock patch for setting of a module's __name__ after reload

16-Jun-1999 JPython 1.1beta2 released

    - Updates and bug fixes to jpythonc tool.  New registry entries
      python.jpythonc.compiler, python.jpythonc.classpath, and
      python.jpythonc.compileropts.  getopt style long/short option
      names (old options are deprecated).  New -J/--compileropts
      option.
    - syncing string object methods with experimental CPython 1.6
      string methods.  This includes new optional arguments on
      startswith() and endswith() and the moving of join() to a method
      of the separator string.
    - Many other bug fixes and CPython syncs

04-Jun-1999 JPython 1.1beta1 released

  Highlights of changes since JPython 1.0.3

    - New and improved jpythonc tool by Jim Hugunin
    - New modules contributed by Finn Bock: cStringIO, cPickle,
      struct, binascii
    - New module synchronize, equivalent to Java's synchronized
      keyword
    - Operator module now complete
    - sys.add_package() no longer necessary, "import java.lang" just works
    - Class-based standard exceptions (w/ support for -X option)
    - super__ methods are deprecated, use regular Python style
    - time.strftime() added
    - Java 1.2 style collections support
    - Multiple interpreter states
    - Most CPython 1.5.2 features have been implemented
    - String objects now have methods -- expected CPython 1.6 feature
    - Improved performance
    - Java inner class support
    - keywords are allowed in some locations (e.g. as attribute names)
    - New license
    - bug fixes




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