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Refactor packages in a Jar
原标题:

I have a requirement that i need to load two versions of a jar at once. To avoid class path collisions I d like to rename the packages of one of the jars. Then in source you could always easily determine the version by the package name.

I ve played with javap but couldn t find an assembler for Java 1.6. I ve also attempted to decompile the code with JD but it never quite got it right and it wouldn t compile.

问题回答

Another thing to consider instead of manually modifying the classes is to use some class loader magic. I ve never done this myself, but have read a bit about it. There is an article on devx which explains how to load multiple versions of classes.

You can use the opensource package : JclLoader which helps in loading different versions of the same jar. This was also a need in one of our systems to do testing .

Link: http://sourceforge.net/projects/jcloader/





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