java.lang.IllegalArgumentException
   at java.nio.Buffer.position(Buffer.java:244)
   at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:618)
   at org.netbeans.api.queries.FileEncodingQuery$ProxyCharset$ProxyDecoder.decodeHead(FileEncodingQuery.java:264)
   at org.netbeans.api.queries.FileEncodingQuery$ProxyCharset$ProxyDecoder.decodeLoop(FileEncodingQuery.java:226)
   at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:579)
   at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:318)
   at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
   at java.io.InputStreamReader.read(InputStreamReader.java:184)
   at org.netbeans.modules.editor.lib2.document.ReadWriteUtils.read(ReadWriteUtils.java:71)
   at org.netbeans.editor.BaseDocument.read(BaseDocument.java:1436)
   at org.netbeans.editor.BaseKit.read(BaseKit.java:668)
   at org.openide.text.DataEditorSupport.loadFromStreamToKit(DataEditorSupport.java:491)
   at org.openide.text.DocumentOpenClose$DocumentLoad.atomicLockedRun(DocumentOpenClose.java:762)
   at org.openide.text.DocumentOpenClose$DocumentLoad.run(DocumentOpenClose.java:613)
   at org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:323)
   at org.openide.text.NbDocument.runAtomic(NbDocument.java:436)
   at org.openide.text.DocumentOpenClose$DocumentLoad.run(DocumentOpenClose.java:653)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1425)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2038)