java.lang.NullPointerException: The l parameter cannot be null
   at org.openide.util.Parameters.notNull(Parameters.java:89)
   at org.openide.text.CloneableEditorSupport.<init>(CloneableEditorSupport.java:293)
   at org.openide.text.DataEditorSupport.<init>(DataEditorSupport.java:146)
   at org.netbeans.modules.openide.loaders.SimpleES.<init>(SimpleES.java:93)
   at org.netbeans.modules.openide.loaders.SimpleES.<init>(SimpleES.java:89)
   at org.openide.text.DataEditorSupport.create(DataEditorSupport.java:176)
   at com.sedelmaier.softtools.loaders.jstart.JStartDataObject.<init>(JStartDataObject.java:65)
   at com.sedelmaier.softtools.loaders.jstart.JStartDataLoader.createMultiObject(JStartDataLoader.java:36)
   at org.openide.loaders.MultiFileLoader.handleFindDataObject(MultiFileLoader.java:150)
   at org.openide.loaders.DataObjectPool.handleFindDataObject(DataObjectPool.java:161)
Caused: java.io.IOException: java.lang.NullPointerException: The l parameter cannot be null
   at org.openide.loaders.DataLoader.findDataObject(DataLoader.java:422)
   at org.openide.loaders.DataLoader.findDataObject(DataLoader.java:380)
   at org.openide.loaders.DataLoaderPool.findDataObject(DataLoaderPool.java:535)
   at org.openide.loaders.FolderList.createBoth(FolderList.java:812)
   at org.openide.loaders.FolderList.getObjects(FolderList.java:608)
   at org.openide.loaders.FolderList.access$200(FolderList.java:77)
   at org.openide.loaders.FolderList$ListTask.computeResult(FolderList.java:1007)
   at org.openide.loaders.FolderList$ListTask.run(FolderList.java:983)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2048)