java.util.zip.ZipException: error in opening zip file

java zip unzip
Sandhya Agarwal picture Sandhya Agarwal · Nov 28, 2008 · Viewed 306.5k times · Source

I have a Jar file, which contains other nested Jars. When I invoke the new JarFile() constructor on this file, I get an exception which says:

java.util.zip.ZipException: error in opening zip file

When I manually unzip the contents of this Jar file and zip it up again, it works fine.

I only see this exception on WebSphere 6.1.0.7 and higher versions. The same thing works fine on tomcat and WebLogic.

When I use JarInputStream instead of JarFile, I am able to read the contents of the Jar file without any exceptions.

Answer

arulraj.net picture arulraj.net · Sep 27, 2010

Make sure your jar file is not corrupted. If it's corrupted or not able to unzip, this error will occur.

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