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JAPITOOLS 0.9 RELEASED 2002/11/05
----------------------
I'm proud to announce the first japitools release intended for wide public
consumption. japitools is a set of tools for testing compatibility between
different versions of a Java API. It can be used both for verifying whether an
independent implementation of an API is correct and complete, and for ensuring
that binary compatibility is maintained between successive versions of the
same API. In particular, japitools can be used to test the conformance of
independent implementations of the Java platform itself.
Features of this release:
* japize tool reads Java class files and dumps a machine-readable representation
of the API to a "japi" file.
* japicompat tool compares two japi files for binary backwards compatibility.
* japilist tool provides human-readable summaries of the contents of a japi
file.
* serialize and serialcompat tools test serialization compatibility.
* japifix tool updates japi files made by previous releases, and in some cases
can correct malformed files.
* Comparisions cover every requirement for binary compatibility as defined in
the JLS, and more, but exclude many differences that are known to be
insignificant, to keep the signal-to-noise ratio high.
* All algorithms are tuned for memory usage and performance, to allow running
on machines with limited resources or as unsupervised (eg nightly) jobs.
* japi file format is fully specified, allowing interoperable tools to be
created.
For more information on japitools, including a change history, visit the project
website at http://rainbow.netreach.net/~sballard/japi . japitools 0.9 can be
downloaded from http://rainbow.netreach.net/~sballard/japi/japitools-0.9.tar.gz
. Any questions or comments should be directed to sballard@netreach.net.
Particular thanks for their help in making this release as good as it can be
go to Brian Jones for providing the ant build system, the serialize and
serialcompat tools, and lots of wrapper scripts, along with some invaluable
testing and setting up nightly japicompat tests for GNU Classpath CVS; and to
Dalibor Topic for working towards a similar arrangement for Kaffe, and being
a patient and committed tester despite several brown-paper-bag development
releases. Thanks also to everyone else who's provided feedback.
Major features planned for the near future include HTML and possibly XML output,
and more advanced filtering of errors to allow, for example, ignoring errors
against an early JDK version if the same problem appears in (more recent
versions of) the JDK itself.
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