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how to get files with a specific path for a jar file

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I want to process a jar file in a java program.

I use JarFile jf = new JarFile("abc.jar");

Then in order to find all the files with path "com/def/". How to do it?

Currently what I do is very tedious especially when the jar is big.
Enumeration en = jf.entries();
then process each element in enumeration and see whether it's belong to the path.

Is there any easier way that I can list all the files with same path?
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Not yet. The only way I know is how you're doing it.
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