java.lang.NegativeArraySizeException
        at java.util.AbstractCollection.toArray(AbstractCollection.java:119)
        at java.util.LinkedList.addAll(LinkedList.java:269)
        at java.util.LinkedList.addAll(LinkedList.java:247)
        at java.util.LinkedList.<init>(LinkedList.java:98)
        at org.netbeans.modules.autoupdate.ui.LocalDownloadSupport.getUpdateUnits(LocalDownloadSupport.java:122)
        at org.netbeans.modules.autoupdate.ui.LocallyDownloadedTableModel.setUnits(LocallyDownloadedTableModel.java:72)
        at org.netbeans.modules.autoupdate.ui.LocallyDownloadedTableModel.removeInstalledUnits(LocallyDownloadedTableModel.java:83)
        at org.netbeans.modules.autoupdate.ui.UnitTab$11.run(UnitTab.java:676)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:573)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1005)