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:225)
   at java.util.zip.ZipFile.<init>(ZipFile.java:155)
   at java.util.zip.ZipFile.<init>(ZipFile.java:169)
   at org.netbeans.modules.options.export.OptionsExportModel.listZipFile(OptionsExportModel.java:1144)
   at org.netbeans.modules.options.export.OptionsExportModel.getRelativePaths(OptionsExportModel.java:821)
   at org.netbeans.modules.options.export.OptionsExportModel.getApplicablePaths(OptionsExportModel.java:740)
   at org.netbeans.modules.options.export.OptionsExportModel.access$000(OptionsExportModel.java:89)
   at org.netbeans.modules.options.export.OptionsExportModel$Item.isApplicable(OptionsExportModel.java:517)
   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)