java.lang.OutOfMemoryError: Java heap space
   at com.sun.tools.javac.util.Position$LineMapImpl.build(Position.java:153)
   at com.sun.tools.javac.util.Position.makeLineMap(Position.java:77)
   at com.sun.tools.javac.parser.JavadocTokenizer.getLineMap(JavadocTokenizer.java:445)
   at com.sun.tools.javac.parser.Scanner.getLineMap(Scanner.java:127)
   at com.sun.tools.javac.parser.JavacParser.parseCompilationUnit(JavacParser.java:3182)
   at org.netbeans.lib.nbjavac.services.NBParserFactory$NBJavacParser.parseCompilationUnit(NBParserFactory.java:193)
   at com.sun.tools.javac.main.JavaCompiler.parse(JavaCompiler.java:622)
   at com.sun.tools.javac.main.JavaCompiler.complete(JavaCompiler.java:771)
   at com.sun.tools.javac.jvm.ClassReader.fillIn(ClassReader.java:2545)
   at com.sun.tools.javac.jvm.ClassReader.complete(ClassReader.java:2440)
   at com.sun.tools.javac.code.Symbol.complete(Symbol.java:553)
   at com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1020)
   at com.sun.tools.javac.code.Symbol$ClassSymbol.flags(Symbol.java:949)
   at com.sun.tools.javac.code.Symbol$TypeSymbol.getEnclosedElements(Symbol.java:727)
   at org.netbeans.modules.java.source.save.ElementOverlay$PackageElementWrapper.getEnclosedElements(ElementOverlay.java:773)
   at org.netbeans.modules.java.source.pretty.ImportAnalysis2.setImports(ImportAnalysis2.java:164)
   at org.netbeans.api.java.source.WorkingCopy.processCurrentCompilationUnit(WorkingCopy.java:622)
   at org.netbeans.api.java.source.WorkingCopy.getChanges(WorkingCopy.java:897)
   at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:652)
   at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:639)
   at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:493)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:593)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:155)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:139)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:206)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:203)
   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.impl.Utilities.runPriorityIO(Utilities.java:74)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:203)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:443)