Caused: java.util.zip.ZipException: error in opening zip file
   at java.util.zip.ZipFile.open(ZipFile.java:0)
   at java.util.zip.ZipFile.<init>(ZipFile.java:220)
   at java.util.zip.ZipFile.<init>(ZipFile.java:150)
   at java.util.zip.ZipFile.<init>(ZipFile.java:164)
   at org.netbeans.modules.options.export.OptionsExportModel.listZipFile(OptionsExportModel.java:1002)
   at org.netbeans.modules.options.export.OptionsExportModel.getRelativePaths(OptionsExportModel.java:679)
   at org.netbeans.modules.options.export.OptionsExportModel.getApplicablePaths(OptionsExportModel.java:598)
   at org.netbeans.modules.options.export.OptionsExportModel.access$000(OptionsExportModel.java:80)
   at org.netbeans.modules.options.export.OptionsExportModel$Item.isApplicable(OptionsExportModel.java:378)
   at org.netbeans.modules.options.export.OptionsChooserPanel.createOptionsTreeModel(OptionsChooserPanel.java:445)
   at org.netbeans.modules.options.export.OptionsChooserPanel.access$700(OptionsChooserPanel.java:101)
   at org.netbeans.modules.options.export.OptionsChooserPanel$6.run(OptionsChooserPanel.java:368)