An error occurred during parsing of '/home/bacchi/NetbeansProjects/AnalisiGrafologiche/src/bacchi/william/analisigrafologiche/AnalisiGrafologiche.java'. Please report a bug against java/source and attach dump file '/home/bacchi/.netbeans/dev/var/log/AnalisiGrafologiche.dump'.
Caused: java.lang.NullPointerException
   at com.sun.tools.javac.comp.Flow.visitMethodDef(Flow.java:775)
   at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:674)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.visitClassDef(Flow.java:703)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:595)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.visitNewClass(Flow.java:1364)
   at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1377)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanExpr(Flow.java:557)
   at com.sun.tools.javac.comp.Flow.scanExprs(Flow.java:567)
   at com.sun.tools.javac.comp.Flow.visitApply(Flow.java:1331)
   at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1326)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.tree.TreeScanner.visitExec(TreeScanner.java:173)
   at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1172)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:541)
   at com.sun.tools.javac.comp.Flow.scanStats(Flow.java:549)
   at com.sun.tools.javac.comp.Flow.visitBlock(Flow.java:845)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:786)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:541)
   at com.sun.tools.javac.comp.Flow.visitMethodDef(Flow.java:773)
   at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:674)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.visitClassDef(Flow.java:703)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:595)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.visitNewClass(Flow.java:1364)
   at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1377)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanExpr(Flow.java:557)
   at com.sun.tools.javac.comp.Flow.scanExprs(Flow.java:567)
   at com.sun.tools.javac.comp.Flow.visitApply(Flow.java:1331)
   at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1326)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.tree.TreeScanner.visitExec(TreeScanner.java:173)
   at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1172)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:541)
   at com.sun.tools.javac.comp.Flow.scanStats(Flow.java:549)
   at com.sun.tools.javac.comp.Flow.visitBlock(Flow.java:845)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:786)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:541)
   at com.sun.tools.javac.comp.Flow.visitMethodDef(Flow.java:773)
   at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:674)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.visitClassDef(Flow.java:703)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:595)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.analyzeTree(Flow.java:1559)
   at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1285)
   at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1246)
   at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:468)
   at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:447)
   at org.netbeans.modules.java.source.parsing.JavacParser.moveToPhase(JavacParser.java:627)
   at org.netbeans.modules.java.source.parsing.JavacParser.getResult(JavacParser.java:484)
   at org.netbeans.modules.java.source.parsing.JavacParser.getResult(JavacParser.java:166)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callGetResult(TaskProcessor.java:605)
   at org.netbeans.modules.parsing.impl.SourceCache.getResult(SourceCache.java:224)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:717)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
   at java.util.concurrent.FutureTask.run(FutureTask.java:166)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
   at java.lang.Thread.run(Thread.java:722)