An error occurred during parsing of '/home/fer/dev/ResumenMensual/src/excelwriter/ResumenMensual.java'. Please report a bug against java/source and attach dump file '/home/fer/.netbeans/dev/var/log/ResumenMensual_39.dump'.
Caused: java.lang.ClassCastException: com.sun.tools.javac.parser.JavacParser$SimpleEndPosTable cannot be cast to org.netbeans.lib.nbjavac.services.NBParserFactory$NBJavacParser$EndPosTableImpl
   at org.netbeans.lib.nbjavac.services.NBParserFactory.newParser(NBParserFactory.java:101)
   at org.netbeans.lib.nbjavac.services.PartialReparser.reparseMethodBody(PartialReparser.java:104)
   at org.netbeans.modules.java.source.parsing.JavacParser.reparseMethod(JavacParser.java:1245)
   at org.netbeans.modules.java.source.parsing.JavacParser.parseImpl(JavacParser.java:427)
   at org.netbeans.modules.java.source.parsing.JavacParser.parse(JavacParser.java:364)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParse(TaskProcessor.java:621)
   at org.netbeans.modules.parsing.impl.SourceCache.getResult(SourceCache.java:251)
   at org.netbeans.modules.parsing.api.ResultIterator.getParserResult(ResultIterator.java:138)
   at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:515)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:609)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:153)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:137)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:204)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:201)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:141)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:90)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:201)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:104)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:473)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:444)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$7.run(ClipboardHandler.java:335)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   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:2058)