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:1150)
   at org.netbeans.modules.options.export.OptionsExportModel.getRelativePaths(OptionsExportModel.java:827)
   at org.netbeans.modules.options.export.OptionsExportModel.getApplicablePaths(OptionsExportModel.java:746)
   at org.netbeans.modules.options.export.OptionsExportModel.access$000(OptionsExportModel.java:89)
   at org.netbeans.modules.options.export.OptionsExportModel$Item.isApplicable(OptionsExportModel.java:523)
   at org.netbeans.modules.options.export.OptionsChooserPanel.createOptionsTreeModel(OptionsChooserPanel.java:457)
   at org.netbeans.modules.options.export.OptionsChooserPanel.access$700(OptionsChooserPanel.java:95)
   at org.netbeans.modules.options.export.OptionsChooserPanel$6.run(OptionsChooserPanel.java:362)