123 lines
4.3 KiB
Plaintext
123 lines
4.3 KiB
Plaintext
*** Changes in GCC 3.4:
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* Compiling a .jar file will now cause non-.class entries to be automatically
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compiled as resources.
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* libgcj has been ported to Darwin.
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* Jeff Sturm has adapted Jan Hubicka's call graph optimization code to gcj.
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* libgcj has a new gcjlib URL type; this lets URLClassLoader load code from
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shared libraries.
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* libgcj has been much more completely merged with GNU Classpath.
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* Class loading is now much more correct; in particular the caller's class
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loader is now used when that is required.
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* Eclipse 2.x will run out of the box using gij.
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* Parts of java.nio have been implemented. Direct and indirect buffers work,
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as do fundamental file and socket operations.
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* java.awt has been improved, though it is still not ready for general use.
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* The HTTP protocol handler now uses HTTP/1.1 and can handle the POST method.
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* The MinGW port has matured. Enhancements include socket timeout support,
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thread interruption, improved Runtime.exec() handling and support for
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accented characters in filenames.
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*** Changes in GCC 3.3:
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* The java.sql and javax.sql packages now implement the JDBC 3.0 (JDK 1.4)
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API.
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* The JDK 1.4 assert facility has been implemented.
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* The bytecode interpreter is now direct threaded and thus faster.
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*** Changes in GCC 3.1:
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* libgcj now includes RMI, java.lang.ref.*, javax.naming, and
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javax.transaction.
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* Property files and other system resources can be compiled into executables
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which use libgcj using the new gcj --resource feature.
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* libgcj has been ported to more platforms. In particular there is now a
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mostly-functional mingw32 (Windows) target port.
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* JNI and CNI invocation interfaces were implemented, so gcj-compiled Java
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code can now be called from a C/C++ application.
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* gcj can now use builtin functions for certain known methods, for instance
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Math.cos.
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* gcj can now automatically remove redundant array-store checks in some common
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cases.
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* The --no-store-checks optimization option was added. This can be used to
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omit runtime store checks for code which is known not to throw
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ArrayStoreException
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* The following third party interface standards were added to libgcj:
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org.w3c.dom and org.xml.sax.
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* java.security has been merged with GNU Classpath. The new package is now
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JDK 1.2 compliant, and much more complete.
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* A bytecode verifier was added to the libgcj interpreter.
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* java.lang.Character was rewritten to comply with the Unicode 3.0 standard,
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and improve performance.
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* Partial support for many more locales was added to libgcj.
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* Socket timeouts have been implemented.
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* libgcj has been merged into a single shared library. There are no longer
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separate shared libraries for the garbage collector and zlib.
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* Several performance improvements were made to gcj and libgcj:
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o Hash synchronization (thin locks)
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o A special allocation path for finalizer-free objects
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o Thread-local allocation
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o Parallel GC, and other GC tweaks
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*** Changes in GCC 3.0:
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* libgcj now includes a bytecode interpreter. If a compiled version of a class
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is not found in the application binary or linked shared libraries, the
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class loader will search for a bytecode version in the CLASSPATH and execute
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it using the interpreter. A new front end that behaves like the traditional
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`java' command is also provided: `gij'.
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* Support for specifying java system properties. Properties can either be set
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at runtime via the GCJ_PROPERTIES environment variable in the format
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"<name>=<value> ..."'; or can be compiled into an application binary using
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-D<name>=<value>.
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* Support for setjmp/longjmp (sjlj) exception handling has been added, as an
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alternative to the existing range-table based mechanism. sjlj is the default
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on non-sparc, non-x86 targets, or can be specified with the
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`--enable-sjlj-exceptions' configure parameter.
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* Complete JDK 1.1 reflection support, including invocation.
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* Throwable.printStackTrace() has been implemented.
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* Runtime.loadLibrary() has been implemented.
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* Class.forName() will now try to load a series of shared objects in order
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to find the requested class. If a class `gnu.quux.whatever' is requested,
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libgcj will search the system shared library path (eg LD_LIBRARY_PATH) for
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`gnu-quux-whatever.so', then `gnu-quux.so', and finally `gnu.so'.
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* A pure-java implementation of java.math.BigInteger.
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New in libgcj 2.95:
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* First public release
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