An error occurred during parsing of 'C:\Users\UMK\Documents\codes\java\WaitTests\src\waittests\LockTests.java'. Please report a bug against java/source and attach dump file 'C:\Users\UMK\AppData\Roaming\NetBeans\7.4rc1\var\log\LockTests_62.dump'.
Caused: java.lang.NullPointerException
   at com.sun.tools.javac.comp.Attr.visitTry(Attr.java:1416)
   at com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1173)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:658)
   at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:674)
   at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1159)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:658)
   at com.sun.tools.javac.comp.Attr.visitForLoop(Attr.java:1187)
   at com.sun.tools.javac.tree.JCTree$JCForLoop.accept(JCTree.java:1000)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:658)
   at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:674)
   at com.sun.tools.javac.comp.Attr.visitLambda(Attr.java:2488)
   at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1615)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:631)
   at com.sun.tools.javac.comp.Attr.visitVarDef(Attr.java:1109)
   at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:852)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:658)
   at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4481)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4378)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4312)
   at com.sun.tools.javac.comp.Attr.attrib(Attr.java:4286)
   at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1288)
   at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1260)
   at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:469)
   at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:448)
   at org.netbeans.modules.java.source.parsing.JavacParser.moveToPhase(JavacParser.java:664)
   at org.netbeans.modules.java.source.parsing.JavacParser.getResult(JavacParser.java:521)
   at org.netbeans.modules.java.source.parsing.JavacParser.getResult(JavacParser.java:174)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callGetResult(TaskProcessor.java:615)
   at org.netbeans.modules.parsing.impl.SourceCache.getResult(SourceCache.java:247)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:727)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)