1 New in release 1.1pre (not yet released)
3 * Large parts rewritten in C++.
4 * No more cacaoh, simplifying cross-compilation.
5 * Works with icedtea-1.10 and newer (PR128, PR129, PR139).
6 * --enable-handles switch for making native code ready for moving GC.
8 * Simplified signal handling -- much less code duplication.
9 * Stack unwinding rewritten in C -- much less assembler code.
10 * OpenSolaris support.
11 * Experimental python mode for easier inspection of internal compiler
13 * Fixed various array-related bugs, including PR116, PR119.
14 * Fixed PR120 (races in thread code).
15 * Fixed code generation bugs on Alpha, ARM, MIPS and PPC64.
16 * Various other improvements and fixes.
18 New in release 0.99.4 (March 16, 2009)
20 * New subtype checking code fixes unexpected class cast exceptions
21 and no longer needs critical sections in JIT code.
22 * Fixed race condition in patcher subsystem which caused illegal
23 instructions and segmentation faults (PR85).
24 * Fixed PR112, PR116, PR118, PR122.
26 New in release 0.99.3 (August 12, 2008)
28 * Fixed PR93 (Process.destroy() now works correctly).
29 * Yield threads when sleeping time is zero.
30 * Implemented sun.misc.Unsafe.putFloat(JF)V
32 New in release 0.99.2 (July 8, 2008)
34 * Rewrite of atomic instructions code. This fixes problems with
35 AWT/Swing programs with OpenJDK.
38 New in release 0.99.1 (June 17, 2008)
40 * Fixed compilation of OpenJDK code (libltdl related).
41 * Imported new gnu/java/lang/CPStringBuilder.java to fix OOMEs.
42 * Fixed abort with OpenJDK's java binary when exiting.
44 New in release 0.99 (June 14, 2008)
46 * Initial support to use OpenJDK as Java core library.
47 * Fixed memory leak in Boehm-GC.
48 * Boehm-GC updated to version 7.1.
49 * Removed libltdl dependency.
50 * Renamed --with-classpath configure options to
51 --with-java-runtime-library.
52 * Renamed --with-jre-layout to --enable-layout.
53 * Replaced --with-classpath-includedir with --with-jni_h and
54 --with-jni_md_h to better support OpenJDK/IcedTea builds.
55 * Use 8-byte stack-slots on all architectures.
56 * Faster C-to-Java calls.
57 * Removed genoffsets, cross-compilation is now much easier.
58 * Implemented Class.isAnonymousClass(), isLocalClass() and
59 isMemberClass() for GNU Classpath.
62 * Linenumber table code rewritten.
63 * Exception table code rewritten.
66 New in release 0.98 (June 6, 2007)
68 * ARM and MIPS32 code generators are now open-source.
69 * PowerPC64 code generator was added.
70 * Sun's phoneme CLDC-1.1 classes can now be used as Java core
72 * Exception throwing code was completely rewritten, this saves JIT
73 code size from 20% up to 50%.
74 * Lock-record code was rewritten and a memory leak was fixed.
75 * Threads code has been reworked and improved.
76 * Exception code has been reworked and improved.
77 * Implemented Class/Method/Field getSignature.
78 * A lot of stuff has been reworked, fixed or improved in the whole
80 * Fixed memory leak in threads code.
83 New in release 0.97 (October 30, 2006)
85 * New instruction format.
86 * New intermediate representation with unified variables.
87 * Local subroutine elimination.
88 * Fixed the interpreter - it runs eclipse now.
89 * New stack-based verifier (used for -Xint).
90 * Boehm GC updated to version 6.8.
91 * Added enable/disable system assertion support (-esa/-dsa).
92 * Initial javax.management support.
93 * Initial sun.misc.Unsafe (JSR166) support.
94 * Added failed class as message to ClassCastException's.
95 * AttachCurrentThread, DetachCurrentThread, and
96 AttachCurrentThreadAsDaemon implemented.
97 * libjvm is now opened via dlopen (removed -rpath stuff).
98 * Data segment now reuses values (if possible).
100 * Fixed AbstractMethodError bug.
101 * Fixed builtin_isanysubclass (BeanShell bug).
102 * Fixed a memory leak in dump memory.
103 * Fixed a bug with DUP2_X1 and DUP2_X2.
104 * Safe decoding of invalid UTF-8 sequences in NewStringUTF.
105 * Fixed line numbers in exceptions thrown through the JIT.
106 * Proper null-check for MONITOREXIT.
107 * Many low-level jasmin tests added.
110 New in release 0.96 (May 29, 2006)
112 * New tasuki lock implementation resolves deadlock problems on
113 multi-processor machines.
114 * Handle Miranda-methods properly.
115 * try-catch line number problem with jikes fixed.
116 * Added support for libjvm.so (including invocation API).
117 * Stripped down object code size of code generators.
118 * Increased default maximum heap size to 128MB and decreased default
120 * Cleaned up internal handling of Unicode strings.
121 * Fixed getResources of bootstrap classloader.
122 * Correct handling of boot packages (provided glibj.zip contains a
124 * Exception handling fixes (don't allocate memory on Java heap).
125 * x86_64's code generator generates not RISC-style code.
126 * Green threads implementation removed.
127 * Semaphore implementation for Darwin (taken from Boehm).
128 * sem_wait interrupted by signal fixed.
129 * Overflow in Object.wait() (partially) fixed (caused busy waiting
131 * Store JNI global refs in native hashtable instead of Java
132 hashtable (bootstrap problem).
133 * Argument passing fixed for powerpc-linux (asm_vm_call_method).
136 New in release 0.95 (February 13, 2006)
138 * Dead-lock bugfix. This should fix the random dead-locks seen in
139 Eclipse or other applications.
140 * Search for suitable jar program during configure, can be specified
141 via JAR environment variable
142 * --enable-zlib bugfix
143 * i386 bugfix: Set FPU to 64-bit on VM startup (fixes Debian bug
145 * powerpc bugfix: (M_COPY): Handle longs and doubles properly.
146 * Fixed instructions copying stackslots (like DUP_X1).
147 * Fixed classcache-related problem with java.lang.reflect.Proxy.
148 * Throw correct exception when trying to load a directory
149 as a classfile (from a .zip file).
150 * Fixed incorrect method resolution when calling instance methods
151 through JNI (fixes CACAO bugs #17 and #18).
154 New in release 0.94 (January 22, 2006)
156 * support compilation of Interpreter and JIT compiler into one binary (not
158 * bootstrap ZIP code rewrite (VM startup time improvement)
159 * fixed JNI DirectByteBuffer functions, jogl works now
160 * removed most third-party files from the repository, we link to the
162 * removed VM interface Java files which were identical to the GNU
163 Classpath upstream version
164 * added defineClassWithTransformers to java.lang.VMClassLoader, now we are
165 able to build against the generics branch
166 * Java compiler which should be used during compilation can be specified
167 via JAVAC environment variable
171 New in release 0.93 (November 23, 2005)
174 * JIT codegenerators for Arm and MIPS (32-bit, -o32), currently
176 * integration of a vmgen-based interpreter (--enable-intrp)
177 * removal of GNU classpath, CACAO now uses upstream releases or CVS
180 * JNI local references implemented
181 * reflection fixes and access checks (mauve tests)
182 * linear scan register allocator (-lsra)
183 * lazy resolving fixes
184 * fixed instanceof instruction
185 * updated to Boehm GC 6.6
188 New in release 0.92 "Tomclipse" (July 14, 2005)
190 * runtime lazy-loading with code patching
191 * dynamic library loading on every platform we support (using
193 * new ICMDs (PUTSTATICCONST, PUTFIELDCONST)
194 * some ICMDs inlined (IDIV/IREM, LDIV/LREM, AASTORE, ARRAYCHECKCAST)
195 * register allocator uses unused argument registers
196 * stacktraces on MIPS, PowerPC and x86_64
197 * integration of GNU classpath's system class loader
198 * internal class loading code more Java VM Spec compliant
199 (classcache, loading constraints, ...)
200 * virtual function table bugfix (abstract class implements not all
202 * initial support for thread dump on SIGQUIT (<ctrl>-\) on most
208 New in release 0.91 (December 23, 2004)
210 * bug fixed in MULTIANEWARRAY
211 * field access related bug fixes
212 * native function call bug fixes
216 New in release 0.90 (December 8, 2004)
218 * More architectures supported: At the moment, CACAO is able to run on
219 Alpha, MIPS (64-bit), x86, x86-64 and PowerPC (32-bit) architectures.
220 * Native thread support
223 * Preliminary AWT support
224 * Boehm garbage collector
225 * Reentrant JIT compiler
226 * Lots of bug fixes and conformance enhancements
227 * Lots of bugs introduced and not fixed
230 * Version 0.40 (released)
231 =========================
233 ** Boehm garbage collector supported
234 ------------------------------------
236 The --enable-gc2 options was replaced by --with-gc. Choose boehm for the
237 Boehm garbage collector. Also see README.boehm.
242 Now runs on some SGI systems, which are based on the mips architecture.
244 ** multiple bug fixes
245 ---------------------
247 Even more java programs work as expected!
250 * Version 0.35 (experimental)
251 =============================
253 ** autoconf, automake support
254 -----------------------------
256 Finally moved the entire distribution to autoconf/automake. This should fix
257 some of our problems with supporting different compilers. Thread support and
258 the use of the new garbage collector can be enabled/disabled from using
261 --enable-threads [default]
264 --enable-gc2 [default]
267 ** new garbage collector
268 ------------------------
270 Included the new garbage collector as default garbage collector.
272 * Version 0.30 (released)
273 =========================
275 Added unlimited stack for GC and main thread.
276 Some optimzations for instructions which operate on constants.
278 * Version 0.20 (released)
279 =========================
281 Hardware null pointer check added, fixed severe errors in GC/Threads, type
282 check and IEEE arithmetic.
284 * Version 0.20beta (can't remember)
285 =========================
287 There is a completely new JIT compiler which is about 7 times faster and
288 produces better code.
289 Multithreading is now supported.
290 A lot of bugs have been fixed.
292 * Version 0.10 (ancient history)
295 The initial version included the old JIT and support for lang, util and io.