This document contains a brief list of the most important OS/2-specific changes in the OpenJDK product from release to release. CHANGES 1.6.0 Build 27 GA4 (2012-12-31) - Updated OpenJDK sources to b27 (released October 26, 2012). The list of changes in b26 and b27 is available here: and a number of other fixes. The full list of changes is located here: https://blogs.oracle.com/openjdk6releases/resource/OpenJDK6-B26-Changes.html https://blogs.oracle.com/openjdk6releases/resource/OpenJDK6-B27-Changes.html - Use stdout instead of stderr for printing usage info from java[w] launchers. 1.6.0 Build 25 GA3 (2012-07-21) - Updated OpenJDK sources to b25 (release May, 07, 2012). The main changes in b25 are the latest round of security updates (in jdk and corba repositories) and a number of other fixes. The full list of changes is located here: https://blogs.oracle.com/openjdk6releases/entry/openjdk_6_b25_available - Fix a hang in the TCP/IP Configuration application when saving the changes. - Fix warnings about stack guard pages that could eventually lead crash the Java application. - Add related changes to make the IcedTea-Web (Java) browser plugin work. - Fix a possible secondary crash when generating the Java crash report. - Change the version numbering scheme to 1.6.0_BB-bNN-name where BB is the upstream Build number, NN is the OS/2 sequential build number and name is a symbolic name of the release. This release's version is 1.6.0_25-b01-GA3. - Make sure the BEGINLIBPATH setting is not necessary for JAVA.EXE and JAVAW.EXE binaries (and for creating a JVM by loading JVM.DLL directly). It is only necessary for JAVAC.EXE and other SDK tools. 1.6.0 Build 24 GA2 (2012-03-19) - Updated OpenJDK sources to b24 (release November 2011). The main changes in b24 are the latest round of security updates (e.g. the security changes in jdk repo) and a few other fixes. For more information see the detailed list of all the changes in OpenJDK 6 B24 here: http://blogs.oracle.com/openjdk6releases/resource/OpenJDK6-B24-Changes.html - Make the JNI interface calling convention compatible with IBM Java. This allows old OS/2 JNI DLLs to be loaded by OpenJDK and makes standard programs like LVMGUI and TCP/IP Configuration work properly under it. - Fix hangs at crashes when the Java process is killed by Ctrl-C or by a kill signal. - Fix crashes following the "Attempt to protect stack guard pages failed" warning message (Odin bug). - Fix spontaneous NoClassDefFoundError exceptions thrown by some applicatinos at startup (Odin/b22 bug). 1.6.0 Build 22 GA (2011-06-27) - Fixed crashing of Java applications on SMP systems. - Don't allow to use two different JVM types at a time (as it is not possible due to OS/2 LX DLL format limitations) and give an error message instead. - A number of minor fixes in JVM and Odin libraries. 1.6.0 Build 22 WSE (2011-05-12) - Fixed: Opening the print dialog would crash the Java application. - Fixed: Printed text was flipped along the base line on output. - Fixed: The dtdbuilder tool would write the binary DTD to stdout causing "\n" to "\r\n" expansion on OS/2 and thus breaking the resulting file which in turn would completely break support of HTML text in Swing components [vendor bug, regresion Build 22 (RC2)]. 1.6.0 Build 22 RC2 (2011-03-28) - Updated OpenJDK sources to b22 (release February 2011). The main changes in b22 are the latest round of security updates; in addition, there are a few copyright and licensing fixes. A detailed list of all the changes in b22 is available here: http://blogs.sun.com/darcy/resource/OpenJDK_6/openjdk6-b22-changes-summary.html. - Fixed and improved system tray support. Requires the Extended system tray widget for XCenter/eCenter (see README.OS2 for a download link). - Fixed: Sound did not work in LIBPATHSTRICT=T mode (Odin bug). - Fixed: SIGABRT that would unexcpectedly terminate some Java applications, e.g. IzPack based installers (GCC compiler bug). - Fixed: Crash during Drag'n'Drop operations in some Java applications, e.g. JAlbum (Odin bug). - Fixed DLL loading code in the JVM that would print a useless message when one of the required DLLs is not found. - A bunch of smaller fixes in Odin libraries that should improve OpenJDK behavior. 1.6.0 Build 19 RC (2011-02-21) - Ported and enabled the JPDA (Java Platform Debugger Architecture) component which provides a framework for debugging Java applications. - Added sound (audio and MIDI) support to Java applications using DART. - Added a free implementation of the com.sun.image.codec.jpeg package (taken from the IcedTea project) used by some old Java applications like Jeti/2. - Renamed all Java DLLs by adding a 'j' prefix to the names to avoid possible conflicts with system DLLs. - Fixed: Accessing the network from Java applications would crash on some machines (Odin bug). - Fixed: Spontaneous 100% CPU load in many Java applications (e.g. GenealogyJ Jeti/2) when throwing NullPointerException as a result of accessing null objects of some application classes (Odin bug). - Fixed: java.util.prefs.Preferences: Use the Open32 registry on OS/2 instead of throwing an exception. - Fixed: JVM used PATH instead of LIBPATH to comprise java.library.path resulting in inability to find JNI DLLs in some applications. - Fixed: Crash in java.io.WinNTFileSystem.getSpace() (Odin bug). - Fixed: Exception java.awt.image.ImagingOpException in many applications due to wrong exports from in jmlibimg.dll. 1.6.0 Build 19 Beta 2 (2011-01-12) - Added a predefined font configuration file to use the Liberation font family as Java system fonts (see README.OS2 for details). - Added the jawt.lib library to the SDK package. - Added some missing GUI and audio classes to rt.jar. - Fixed: Java could not find a .jar file in the current directory when starting it with 'java -jar filename.jar'. - Fixed: Non-ASCII characters in the title bar of any Java window would be drawn using wrong glyphs. - Fixed: Java could incorrectly detect the default object heap size on some systems for some specific VIRTUALADDRESS values and abort at startup with a "Could not reserve enough space for object heap" error message. - Fixed: java.io.File.mkdirs() wouild always fail which would in particular abort the installation process of some applications such as jEdit, iTrain (this bug was actually fixed in Odin). - Fixed: An attempt to use Drag & Drop in any Java application would cause a Java exception and program termination. 1.6.0 Build 19 Beta (2010-12-30) - Added support for AWT and Swing classes which brings GUI capabilities. - Lots of small fixes. 1.6.0 Build 19 Alpha (2010-10-01) - First public release.