[antlr-interest] performance improvements with gnu gcj

[clilley]

Members of the group who may need to improve the performance of any java
based transformers using ANTLR 2.7.5 would do well to look at gnu gcj. I
have managed to take a compiler.jar file and compile it down to an
executable to give a 60% increase in performance.

The compiler.jar file contains all the ANTLR class files and implementation
classes in one self contained unit.

 

This may not be good for everyone, but it enables us to keep the platform
independent java code, while customers who have platforms that support gcj,
can use the faster version.

 

Regards

 

Clive Lilley

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