NEWS

New in release 1.6.2 (not yet released)

  * New statistics framework.
  * Loop optimization (disabled by default).
  * Boehm GC upgraded to 7.2d.
  * Eliminated almost all compiler warnings.
  * Some removal of deprecated code.
  * Removed m68k architecture.
  * Fixed Java assertion handling.
  * Fixed float stack argument passing on some architectures.
  * Fixed PR50, PR180, PR185, PR186, PR187.

New in release 1.6.1 (June 28, 2013)

  * Support for OpenJDK 7.
  * ARM: Support for hard-float systems (PR172).
  * Fixed remaining icedtea6 check-langtools failures (PR166, PR167).
  * Reworked internal string representation.
  * Completed migration to C++ for almost all remaining files.
  * alpha: Regression tests work again.
  * Introduced a new logging framework in more idiomatic C++.
  * PR178, PR179: Introduced checks for junit and jasmin at configure time.
  * PR184: Repair build on armv4.
  * Assorted minor infrastructure and build fixes and improvements.

New in release 1.6.0 (September 4, 2012)

  * Large parts rewritten in C++.
  * No more cacaoh, simplifying cross-compilation.
  * --enable-handles switch for making native code ready for moving GC
    (currently broken).
  * park/unpark support.
  * Simplified signal handling -- reduced code duplication.
  * Added support for OpenSolaris.
  * Experimental python mode for easier inspection of internal compiler
    structures.
  * Fixed various array-related bugs, including PR116, PR119.
  * Fixed PR120 (races in thread code).
  * Correct placement of memory barriers on x86 and x86-64.
  * Fixed code generation bugs on Alpha, ARM, MIPS and PPC64.
  * Fixed support for armv7 hard-float.
  * Supports ARM Thumb interworking.
  * Partially unified code generation.
  * Numerous other improvements and fixes.

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 release 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.