Creating archive in the working directory causes NullPointerException

[plamentotev]

The following will cause NullPointerException:

archiver.setDestFile( new File( "archive.zip" ) );

That is because setDestFile tries to create the parent directory:

        if ( destFile != null )
        {
            destFile.getParentFile().mkdirs();
        }

but in the case shown above destFile.getParentFile() returns null.