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jlechner |
#!wml --include=..
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#use wml::std::page
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#use wml::std::lang
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#use wml::fmt::isolatin
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#use wml::std::case global=upper
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#include
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GNU Classpath 0.18 released.
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We are pleased to announce a new developer snapshot of GNU Classpath.
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GNU Classpath, essential libraries for java, is a project to create free
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core class libraries for use with runtimes, compilers and tools for the
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java programming language.
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The GNU Classpath developer snapshot releases are not directly aimed
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at the end user but are meant to be integrated into larger development
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platforms. For example the GCC (gcj) and Kaffe projects will use the
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developer snapshots as a base for future versions.
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This is our first release after "The Big Merge" with GCC/GCJ. GNU
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Classpath can now be used as a subdirectory of libgcj inside the GCC
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tree so it will be much easier to keep GCC up-to-date with the latest
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GNU Classpath developer release snapshots.
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Some highlights of changes in this release (more extensive list below):
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Added GNU JAWT for awt native interface support. Datatransfer
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clipboard updated to 1.5 including support for copy/paste of
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serialized objects, images and files. Completed the org.omg
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PortableInterceptor, DynamicAny and Portable Object Adapter
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packages. Multi plaf support for Free Swing. Editing support for
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JTree and JTable. Lots of icons and look and feel improvements for
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Free Swing basic and metal themes. NIO FileChannel.map implemented
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and DirectByteBuffer put method speedups. Image loading speedups for
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awt. Support for darwin and solaris out of the box.
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29 people actively contributed to this release and made 535 CVS
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commits during the two months of development. diffstat since 0.17:
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994 files changed, 114744 insertions(+), 13663 deletions(-)
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More details about the various changes and contributions below.
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A full list of bug reports fixed for this release can be found at:
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http://gcc.gnu.org/bugzilla/buglist.cgi?product=classpath&target_milestone=0.18
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This release depends on gtk+ 2.4 for AWT support. But gtk+ 2.6 or
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higher is recommended. Included, but not activated by default in this
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release is a Graphics2D implementation based on the Cairo Graphics
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framework (http://www.cairographics.org). Enabling this makes programs
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like JFreeChart and JEdit start up on GNU Classpath based runtimes.
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To enable this support install the cairo 0.5.x snapshot, configure GNU
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Classpath with --enable-gtk-cairo.
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One of the major focuses of the GNU Classpath project is expanding
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and using the Mauve test suite for Compatibility, Completeness and
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Correctness checking. Various groups around GNU Classpath collaborate
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on the free software Mauve test suite which contains 32.000+ core
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library tests. Mauve has various modules for testing core class
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library implementations, byte code verifiers, source to byte code and
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native code compiler tests. Mauve also contains the Wonka visual test
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suite and the Jacks Compiler Killer Suite.
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See for more information: http://www.sourceware.org/mauve/
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This release passes 31194 out of 32253 Mauve core library tests.
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Conformance reports for the included jaxp support can be found in the
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doc/README.jaxp file.
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GNU Classpath 0.18 can be downloaded from
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ftp://ftp.gnu.org/pub/gnu/classpath/
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or one of the ftp.gnu.org mirrors
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http://www.gnu.org/order/ftp.html
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File: classpath-0.18.tar.gz
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MD5sum: c0650c257aa93eafb709553f172f0bbb
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SHA1sum: 28061c750244cac4ff0151da6aba183b94b98b25
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The GNU Classpath developers site http://developer.classpath.org/
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provides detailed information on how to start with helping the GNU
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Classpath project and gives an overview of the core class library
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packages currently provided. For each snapshot release generated
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documentation is provided through the GNU Classpath Tools gjdoc
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project. A documentation generation framework for java source
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files used by the GNU project. Full documentation on the currently
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implementated packages and classes can be found at:
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http://developer.classpath.org/doc/
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New in release 0.18 (Sep 6, 2005)
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(See the ChangeLog file for a full list of changes.)
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* GNU JAWT implementation, the AWT Native Interface, which allows
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direct access to native screen resources from within a Canvas's
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paint method. GNU Classpath Examples comes with a Demo, see
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examples/README.
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* awt.datatransfer updated to 1.5 with supports for FlavorEvents.
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The gtk+ awt peers now allow copy/paste of text, images, uris/files
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and serialized objects with other applications and tracking
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clipboard change events with gtk+ 2.6 (for gtk+ 2.4 only text and
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serialized objects are supported). A GNU Classpath Examples
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datatransfer Demo was added to show the new functionality.
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* org.omg.PortableInterceptor and related functionality in other
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packages is now implemented:
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- The sever and client interceptors work as required since 1.4.
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- The IOR interceptor works as needed for 1.5.
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* The org.omg.DynamicAny package is completed and passes the prepared
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tests.
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* The Portable Object Adapter should now support the output of the
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recent IDL to java compilers. These compilers now generate servants and
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not CORBA objects as before, making the output depended on the existing
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POA implementation. Completing POA means that such code can already be
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tried to run on Classpath. Our POA is tested for the following usager
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scenarios:
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- POA converts servant to the CORBA object.
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- Servant provides to the CORBA object.
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- POA activates new CORBA object with the given Object Id
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(byte array) that is later accessible for the servant.
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- During the first call, the ServantActivator provides servant for
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this and all subsequent calls on the current object.
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- During each call, the ServantLocator provides servant for this call
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only.
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- ServantLocator or ServantActivator forwards call to another server.
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- POA has a single servant, responsible for all objects.
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- POA has a default servant, but some objects are explicitly
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connected to they specific servants.
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The POA is verified using tests from the former cost.omg.org.
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* The javax.swing.plaf.multi.* package is now implemented.
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* Editing and several key actions for JTree and JTable were implemented.
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* Lots of icons and look and feel improvements for Free Swing basic
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and metal themes were added. Try running the GNU Classpath Swing
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Demo in examples (gnu.classpath.examples.swing.Demo) with:
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-Dswing.defaultlaf=javax.swing.plaf.basic.BasicLookAndFeel
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-Dswing.defaultlaf=javax.swing.plaf.metal.MetalLookAndFeel
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* Start of styled text capabilites for java.swing.text.
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* NIO FileChannel.map implementation, fast bulk put implementation for
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DirectByteBuffer (speeds up this method 10x).
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* Split gtk+ awt peers event handling in two threads and improve gdk
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lock handling (solves several AWT lock ups).
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* Speed up awt Image loading.
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* Updated TimeZone data against Olson tzdata2005l.
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* Make zip and jar UTF-8 "clean".
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* "native" code builds and compiles (warning free) on Darwin and
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Solaris.
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Runtime interface changes:
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* All native resource "pointers" in the VM interface classes are now
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exposed as gnu.classpath.Pointer objects. This might impact runtimes
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that optimize and support java.nio.DirectByteBuffers. Creating these
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classes and accessing the contents as void * pointers for the native
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reference JNI implementation is done through the
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JCL_NewRawDataObject and JCL_GetRawData functions.
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* Simplified the Class/VMClass interface.
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* Removed loadedClasses map from ClassLoader. It's now the VMs
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responsibility to manage the list of defined and loaded classes for
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each class loader.
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* Moved native methods from java.lang.reflect.Proxy to VMProxy.
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* Added hook to VMClassLoader to allow VM to do class caching.
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New Untested/Disabled Features:
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The following new features are included, but not ready for
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production yet. They are explicitly disabled and not supported. But
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if you want to help with the development of these new features we
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are interested in feedback. You will have to explicitly enable them
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to try them out (and they will most likely contain bugs). If you are
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interested in any of these then please join the mailing-list and
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follow development in CVS.
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* QT4 AWT peers, enable by giving configure --enable-qt-peer.
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* JDWP framework, enable by deleting the jdwp references from
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lib/standard.omit and vm/reference/standard.omit. No default
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implementation is provided. Work is being done on gcj/gij
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integration.
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* StAX java.xml.stream, enable by deleting the gnu.xml.stream and
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java.xml.stream references in lib/standard.omit.
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The following people helped with this release:
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Aaron Luchko (Lots of JDWP work)
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Andreas Tobler (Darwin and Solaris testing and fixing
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Andrew Haley (gcj build speedups)
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Anthony Balkissoon (Lots of Free Swing work including JTable editing)
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Archie Cobbs (Build fixes)
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Audrius Meskauskas (Lots of omg corba work plus testing and documenting)
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Bastiaan Huisman (TimeZone bug fixing)
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Casey Marshall (NIO FileChannel.map support, security and policy updates)
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Chris Burdess (StAX work and gnu xml fixes)
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Christian Schlichtherle (Zip fixes and cleanups)
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Christian Thalinger (64-bit cleanups)
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Dalibor Topic (Qt4 build infrastructure)
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David Gilbert (Basic and Metal icon and plaf and lots of documenting)
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Guilhem Lavaux (JCL native Pointer updates)
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Ingo Proetel (Image, Logger and URLClassLoader updates)
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Ito Kazumitsu (NetworkInterfaces implementation and updates)
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Jan Roehrich (BasicTreeUI updates)
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Jeroen Frijters (VMProxy and VMClassLoader updates, RMIClassLoader fixes)
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Keith Seitz (Lots of JDWP work)
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Kelley Cook (Build fixes)
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Lillian Angel (Lots of Free Swing work including JTree editing)
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Mark Wielaard (Clipboard implementation, build and release infrastructure)
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Rainer Orth (Build fixes)
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Robert Schuster (Documentation updates and beans fixes)
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Roman Kennke (Lots of Free Swing work including styled text)
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Sven de Marothy (Qt4 peers)
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Thomas Fitzsimmons (Lots of gtk+ awt peer work)
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Tom Tromey (Lots of fixes including coordinating The Big Merge)
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Wolfgang Baer (GapContent bug fixes)
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We would also like to thank the numerous bug reporters and testers!
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