1 New in release 0.99 (March x, 2008)
3 * Initial support to use OpenJDK as Java core library.
4 * Fixed memory leak in Boehm-GC.
5 * Use 8-byte stack-slots on all architectures.
6 * Faster C-to-Java calls.
7 * Removed genoffsets, cross-compilation is now much easier.
8 * Implemented Class.isAnonymousClass(), isLocalClass() and
9 isMemberClass() for GNU Classpath.
12 * Linenumber table code rewritten.
13 * Exception table code rewritten.
16 New in release 0.98 (June 6, 2007)
18 * ARM and MIPS32 code generators are now open-source.
19 * PowerPC64 code generator was added.
20 * Sun's phoneme CLDC-1.1 classes can now be used as Java core
22 * Exception throwing code was completely rewritten, this saves JIT
23 code size from 20% up to 50%.
24 * Lock-record code was rewritten and a memory leak was fixed.
25 * Threads code has been reworked and improved.
26 * Exception code has been reworked and improved.
27 * Implemented Class/Method/Field getSignature.
28 * A lot of stuff has been reworked, fixed or improved in the whole
30 * Fixed memory leak in threads code.
33 New in release 0.97 (October 30, 2006)
35 * New instruction format.
36 * New intermediate representation with unified variables.
37 * Local subroutine elimination.
38 * Fixed the interpreter - it runs eclipse now.
39 * New stack-based verifier (used for -Xint).
40 * Boehm GC updated to version 6.8.
41 * Added enable/disable system assertion support (-esa/-dsa).
42 * Initial javax.management support.
43 * Initial sun.misc.Unsafe (JSR166) support.
44 * Added failed class as message to ClassCastException's.
45 * AttachCurrentThread, DetachCurrentThread, and
46 AttachCurrentThreadAsDaemon implemented.
47 * libjvm is now opened via dlopen (removed -rpath stuff).
48 * Data segment now reuses values (if possible).
50 * Fixed AbstractMethodError bug.
51 * Fixed builtin_isanysubclass (BeanShell bug).
52 * Fixed a memory leak in dump memory.
53 * Fixed a bug with DUP2_X1 and DUP2_X2.
54 * Safe decoding of invalid UTF-8 sequences in NewStringUTF.
55 * Fixed line numbers in exceptions thrown through the JIT.
56 * Proper null-check for MONITOREXIT.
57 * Many low-level jasmin tests added.
60 New in release 0.96 (May 29, 2006)
62 * New tasuki lock implementation resolves deadlock problems on
63 multi-processor machines.
64 * Handle Miranda-methods properly.
65 * try-catch line number problem with jikes fixed.
66 * Added support for libjvm.so (including invocation API).
67 * Stripped down object code size of code generators.
68 * Increased default maximum heap size to 128MB and decreased default
70 * Cleaned up internal handling of Unicode strings.
71 * Fixed getResources of bootstrap classloader.
72 * Correct handling of boot packages (provided glibj.zip contains a
74 * Exception handling fixes (don't allocate memory on Java heap).
75 * x86_64's code generator generates not RISC-style code.
76 * Green threads implementation removed.
77 * Semaphore implementation for Darwin (taken from Boehm).
78 * sem_wait interrupted by signal fixed.
79 * Overflow in Object.wait() (partially) fixed (caused busy waiting
81 * Store JNI global refs in native hashtable instead of Java
82 hashtable (bootstrap problem).
83 * Argument passing fixed for powerpc-linux (asm_vm_call_method).
86 New in release 0.95 (February 13, 2006)
88 * Dead-lock bugfix. This should fix the random dead-locks seen in
89 Eclipse or other applications.
90 * Search for suitable jar program during configure, can be specified
91 via JAR environment variable
92 * --enable-zlib bugfix
93 * i386 bugfix: Set FPU to 64-bit on VM startup (fixes Debian bug
95 * powerpc bugfix: (M_COPY): Handle longs and doubles properly.
96 * Fixed instructions copying stackslots (like DUP_X1).
97 * Fixed classcache-related problem with java.lang.reflect.Proxy.
98 * Throw correct exception when trying to load a directory
99 as a classfile (from a .zip file).
100 * Fixed incorrect method resolution when calling instance methods
101 through JNI (fixes CACAO bugs #17 and #18).
104 New in release 0.94 (January 22, 2006)
106 * support compilation of Interpreter and JIT compiler into one binary (not
108 * bootstrap ZIP code rewrite (VM startup time improvement)
109 * fixed JNI DirectByteBuffer functions, jogl works now
110 * removed most third-party files from the repository, we link to the
112 * removed VM interface Java files which were identical to the GNU
113 Classpath upstream version
114 * added defineClassWithTransformers to java.lang.VMClassLoader, now we are
115 able to build against the generics branch
116 * Java compiler which should be used during compilation can be specified
117 via JAVAC environment variable
121 New in release 0.93 (November 23, 2005)
124 * JIT codegenerators for Arm and MIPS (32-bit, -o32), currently
126 * integration of a vmgen-based interpreter (--enable-intrp)
127 * removal of GNU classpath, CACAO now uses upstream releases or CVS
130 * JNI local references implemented
131 * reflection fixes and access checks (mauve tests)
132 * linear scan register allocator (-lsra)
133 * lazy resolving fixes
134 * fixed instanceof instruction
135 * updated to Boehm GC 6.6
138 New in release 0.92 "Tomclipse" (July 14, 2005)
140 * runtime lazy-loading with code patching
141 * dynamic library loading on every platform we support (using
143 * new ICMDs (PUTSTATICCONST, PUTFIELDCONST)
144 * some ICMDs inlined (IDIV/IREM, LDIV/LREM, AASTORE, ARRAYCHECKCAST)
145 * register allocator uses unused argument registers
146 * stacktraces on MIPS, PowerPC and x86_64
147 * integration of GNU classpath's system class loader
148 * internal class loading code more Java VM Spec compliant
149 (classcache, loading constraints, ...)
150 * virtual function table bugfix (abstract class implements not all
152 * initial support for thread dump on SIGQUIT (<ctrl>-\) on most
158 New in release 0.91 (December 23, 2004)
160 * bug fixed in MULTIANEWARRAY
161 * field access related bug fixes
162 * native function call bug fixes
166 New in relaese 0.90 (December 8, 2004)
168 * More architectures supported: At the moment, CACAO is able to run on
169 Alpha, MIPS (64-bit), x86, x86-64 and PowerPC (32-bit) architectures.
170 * Native thread support
173 * Preliminary AWT support
174 * Boehm garbage collector
175 * Reentrant JIT compiler
176 * Lots of bug fixes and conformance enhancements
177 * Lots of bugs introduced and not fixed
180 * Version 0.40 (released)
181 =========================
183 ** Boehm garbage collector supported
184 ------------------------------------
186 The --enable-gc2 options was replaced by --with-gc. Choose boehm for the
187 Boehm garbage collector. Also see README.boehm.
192 Now runs on some SGI systems, which are based on the mips architecture.
194 ** multiple bug fixes
195 ---------------------
197 Even more java programs work as expected!
200 * Version 0.35 (experimental)
201 =============================
203 ** autoconf, automake support
204 -----------------------------
206 Finally moved the entire distribution to autoconf/automake. This should fix
207 some of our problems with supporting different compilers. Thread support and
208 the use of the new garbage collector can be enabled/disabled from using
211 --enable-threads [default]
214 --enable-gc2 [default]
217 ** new garbage collector
218 ------------------------
220 Included the new garbage collector as default garbage collector.
222 * Version 0.30 (released)
223 =========================
225 Added unlimited stack for GC and main thread.
226 Some optimzations for instructions which operate on constants.
228 * Version 0.20 (released)
229 =========================
231 Hardware null pointer check added, fixed severe errors in GC/Threads, type
232 check and IEEE arithmetic.
234 * Version 0.20beta (can't remember)
235 =========================
237 There is a completely new JIT compiler which is about 7 times faster and
238 produces better code.
239 Multithreading is now supported.
240 A lot of bugs have been fixed.
242 * Version 0.10 (ancient history)
245 The initial version included the old JIT and support for lang, util and io.