PathMatchingResourcePatternResolver failing against non-jar file in classpath

[finn0s]

Since version 6.2.0-RC3 / #33705 the PathMatchingResourcePatternResolver throws an java.util.zip.ZipException: zip file is empty Exception when a none jar file is in the classpath.
I use IntelliJ to Build with maven, and IntelliJ adds a .license file to the class path. There is already an issue in IntelliJ Youtrack opend 2021.
https://youtrack.jetbrains.com/issue/IDEA-262695/Maven-plexus-classworlds.license-is-added-to-classpath-breaks-Mwe2

[jhoeller]

@finn0s here exactly does this break in PathMatchingResourcePatternResolver? Which line throws that exception, could you share a stacktrace?

I'm going to review this myself on the basis of the #33705 changes, in preparation for the 6.2.3 release which is scheduled for tomorrow. In any case, a concrete pointer would be appreciated.

[jhoeller]

Is this coming out of the jarCon.getJarFile() call in line 840 by any chance? We just catch FileNotFoundException there, not ZipException... in contrast to all other creation of JarFile instances where we catch ZipException already.

[jhoeller]

As far as I was able to reproduce this, it is indeed a ZipException coming out of jarCon.getJarFile() in such a case. I'll address this through extending the catch clause there.