ant task to remove files from a jar

Question

How to write an ant task that removes files from a previously compiled JAR?

Let\'s say the files in my JAR are:

aaa/bbb/ccc/Class1
aaa/bbb/ccc/Class2         


        

Answer 1

If a jar-file capable archiver program, like e.g. "zip" on Linux, is available, the task can be done by

Subtree deletion depends on the capabilities of the used archiver.
The "os" attribute of the Ant "exec" task allows to use different archivers on different OS's.