New in release 0.99.4 (March 16, 2009)
* New subtype checking code fixes unexpected class cast exceptions
and no longer needs critical sections in JIT code.
* Fixed race condition in patcher subsystem which caused illegal
instructions and segmentation faults (PR85).
* Fixed PR112, PR116, PR118, PR122.
New in release 0.99.3 (August 12, 2008)
* Fixed PR93 (Process.destroy() now works correctly).
* Yield threads when sleeping time is zero.
* Implemented sun.misc.Unsafe.putFloat(JF)V
New in release 0.99.2 (July 8, 2008)
* Rewrite of atomic instructions code. This fixes problems with
AWT/Swing programs with OpenJDK.
* Fixed PR83, PR89.
New in release 0.99.1 (June 17, 2008)
* Fixed compilation of OpenJDK code (libltdl related).
* Imported new gnu/java/lang/CPStringBuilder.java to fix OOMEs.
* Fixed abort with OpenJDK's java binary when exiting.
New in release 0.99 (June 14, 2008)
* Initial support to use OpenJDK as Java core library.
* Fixed memory leak in Boehm-GC.
* Boehm-GC updated to version 7.1.
* Removed libltdl dependency.
* Renamed --with-classpath configure options to
--with-java-runtime-library.
* Renamed --with-jre-layout to --enable-layout.
* Replaced --with-classpath-includedir with --with-jni_h and
--with-jni_md_h to better support OpenJDK/IcedTea builds.
* Use 8-byte stack-slots on all architectures.
* Faster C-to-Java calls.
* Removed genoffsets, cross-compilation is now much easier.
* Implemented Class.isAnonymousClass(), isLocalClass() and
isMemberClass() for GNU Classpath.
* Annotation support.
* Assertion support.
* Linenumber table code rewritten.
* Exception table code rewritten.
New in release 0.98 (June 6, 2007)
* ARM and MIPS32 code generators are now open-source.
* PowerPC64 code generator was added.
* Sun's phoneme CLDC-1.1 classes can now be used as Java core
library.
* Exception throwing code was completely rewritten, this saves JIT
code size from 20% up to 50%.
* Lock-record code was rewritten and a memory leak was fixed.
* Threads code has been reworked and improved.
* Exception code has been reworked and improved.
* Implemented Class/Method/Field getSignature.
* A lot of stuff has been reworked, fixed or improved in the whole
VM code.
* Fixed memory leak in threads code.
New in release 0.97 (October 30, 2006)
* New instruction format.
* New intermediate representation with unified variables.
* Local subroutine elimination.
* Fixed the interpreter - it runs eclipse now.
* New stack-based verifier (used for -Xint).
* Boehm GC updated to version 6.8.
* Added enable/disable system assertion support (-esa/-dsa).
* Initial javax.management support.
* Initial sun.misc.Unsafe (JSR166) support.
* Added failed class as message to ClassCastException's.
* AttachCurrentThread, DetachCurrentThread, and
AttachCurrentThreadAsDaemon implemented.
* libjvm is now opened via dlopen (removed -rpath stuff).
* Data segment now reuses values (if possible).
* Fixed AbstractMethodError bug.
* Fixed builtin_isanysubclass (BeanShell bug).
* Fixed a memory leak in dump memory.
* Fixed a bug with DUP2_X1 and DUP2_X2.
* Safe decoding of invalid UTF-8 sequences in NewStringUTF.
* Fixed line numbers in exceptions thrown through the JIT.
* Proper null-check for MONITOREXIT.
* Many low-level jasmin tests added.
New in release 0.96 (May 29, 2006)
* New tasuki lock implementation resolves deadlock problems on
multi-processor machines.
* Handle Miranda-methods properly.
* try-catch line number problem with jikes fixed.
* Added support for libjvm.so (including invocation API).
* Stripped down object code size of code generators.
* Increased default maximum heap size to 128MB and decreased default
stack size to 64kB.
* Cleaned up internal handling of Unicode strings.
* Fixed getResources of bootstrap classloader.
* Correct handling of boot packages (provided glibj.zip contains a
jar index).
* Exception handling fixes (don't allocate memory on Java heap).
* x86_64's code generator generates not RISC-style code.
* Green threads implementation removed.
* Semaphore implementation for Darwin (taken from Boehm).
* sem_wait interrupted by signal fixed.
* Overflow in Object.wait() (partially) fixed (caused busy waiting
in JOnAS).
* Store JNI global refs in native hashtable instead of Java
hashtable (bootstrap problem).
* Argument passing fixed for powerpc-linux (asm_vm_call_method).
New in release 0.95 (February 13, 2006)
* Dead-lock bugfix. This should fix the random dead-locks seen in
Eclipse or other applications.
* Search for suitable jar program during configure, can be specified
via JAR environment variable
* --enable-zlib bugfix
* i386 bugfix: Set FPU to 64-bit on VM startup (fixes Debian bug
#350729)
* powerpc bugfix: (M_COPY): Handle longs and doubles properly.
* Fixed instructions copying stackslots (like DUP_X1).
* Fixed classcache-related problem with java.lang.reflect.Proxy.
* Throw correct exception when trying to load a directory
as a classfile (from a .zip file).
* Fixed incorrect method resolution when calling instance methods
through JNI (fixes CACAO bugs #17 and #18).
New in release 0.94 (January 22, 2006)
* support compilation of Interpreter and JIT compiler into one binary (not
enabled by default)
* bootstrap ZIP code rewrite (VM startup time improvement)
* fixed JNI DirectByteBuffer functions, jogl works now
* removed most third-party files from the repository, we link to the
libraries instead
* removed VM interface Java files which were identical to the GNU
Classpath upstream version
* added defineClassWithTransformers to java.lang.VMClassLoader, now we are
able to build against the generics branch
* Java compiler which should be used during compilation can be specified
via JAVAC environment variable
* a lot of bugfixes
New in release 0.93 (November 23, 2005)
* Java 1.5 support
* JIT codegenerators for Arm and MIPS (32-bit, -o32), currently
closed-source
* integration of a vmgen-based interpreter (--enable-intrp)
* removal of GNU classpath, CACAO now uses upstream releases or CVS
head versions
* finalizer thread
* JNI local references implemented
* reflection fixes and access checks (mauve tests)
* linear scan register allocator (-lsra)
* lazy resolving fixes
* fixed instanceof instruction
* updated to Boehm GC 6.6
New in release 0.92 "Tomclipse" (July 14, 2005)
* runtime lazy-loading with code patching
* dynamic library loading on every platform we support (using
libltdl)
* new ICMDs (PUTSTATICCONST, PUTFIELDCONST)
* some ICMDs inlined (IDIV/IREM, LDIV/LREM, AASTORE, ARRAYCHECKCAST)
* register allocator uses unused argument registers
* stacktraces on MIPS, PowerPC and x86_64
* integration of GNU classpath's system class loader
* internal class loading code more Java VM Spec compliant
(classcache, loading constraints, ...)
* virtual function table bugfix (abstract class implements not all
interface methods)
* initial support for thread dump on SIGQUIT (<ctrl>-\) on most
platforms
* GNU classpath 0.16
* Boehm GC 6.5
New in release 0.91 (December 23, 2004)
* bug fixed in MULTIANEWARRAY
* field access related bug fixes
* native function call bug fixes
* smaller fixes...
New in relaese 0.90 (December 8, 2004)
* More architectures supported: At the moment, CACAO is able to run on
Alpha, MIPS (64-bit), x86, x86-64 and PowerPC (32-bit) architectures.
* Native thread support
* Java 1.4 support
* GNU classpath 0.12
* Preliminary AWT support
* Boehm garbage collector
* Reentrant JIT compiler
* Lots of bug fixes and conformance enhancements
* Lots of bugs introduced and not fixed
* Version 0.40 (released)
=========================
** Boehm garbage collector supported
------------------------------------
The --enable-gc2 options was replaced by --with-gc. Choose boehm for the
Boehm garbage collector. Also see README.boehm.
** mips port
------------
Now runs on some SGI systems, which are based on the mips architecture.
** multiple bug fixes
---------------------
Even more java programs work as expected!
* Version 0.35 (experimental)
=============================
** autoconf, automake support
-----------------------------
Finally moved the entire distribution to autoconf/automake. This should fix
some of our problems with supporting different compilers. Thread support and
the use of the new garbage collector can be enabled/disabled from using
configure arguments:
--enable-threads [default]
--disable-threads
--enable-gc2 [default]
--disable-gc2
** new garbage collector
------------------------
Included the new garbage collector as default garbage collector.
* Version 0.30 (released)
=========================
Added unlimited stack for GC and main thread.
Some optimzations for instructions which operate on constants.
* Version 0.20 (released)
=========================
Hardware null pointer check added, fixed severe errors in GC/Threads, type
check and IEEE arithmetic.
* Version 0.20beta (can't remember)
=========================
There is a completely new JIT compiler which is about 7 times faster and
produces better code.
Multithreading is now supported.
A lot of bugs have been fixed.
* Version 0.10 (ancient history)
==============
The initial version included the old JIT and support for lang, util and io.
