ZipFile can be constructed with a null File causing NPE some time later

[mdaloia]

Current version (2.6.4) allows to construct a ZipFile with a null File reference: (i.e. new ZipFile((File) null)) without proper validation. This does not happen if you use the constructor with the String argument as internally it does a new File(string) and if the string is null the File constructor throws a NPE.

The consequence of this is that when you want to do an operation with the ZipFile instance (e.g. zipFile.getFileHeaders() it throws a NPE on this line.

To avoid these scenarios, it should be properly validated on construction of ZipFile if accepting a null reference as File is not valid later.

On previous versions (1.3.2) there was a check that somehow on later releases it was removed (particularly on this commit).
This is 1.3.2:

[srikanth-lingala]

Thanks for pointing it out. I will add this check.

[srikanth-lingala]

Issue fixed in v2.7.0 which was released today.