An error occurred during parsing of '/Users/alvin/Projects/iJET/CWT_Core/CWT_EJB/src/main/java/com/ijet/cwt/service/CacheService.java'. Please report a bug against java/source and attach dump file '/Users/alvin/Library/Application Support/NetBeans/dev/var/log/CacheService_2.dump'. Caused: java.lang.NullPointerException at com.sun.tools.javac.code.Types.glb(Types.java:3459) at com.sun.tools.javac.comp.Infer$InferenceStep$3.solve(Infer.java:974) at com.sun.tools.javac.comp.Infer$InferenceStep$4.solve(Infer.java:996) at com.sun.tools.javac.comp.Infer$InferenceContext.solveBasic(Infer.java:1604) at com.sun.tools.javac.comp.Infer$InferenceContext.solveBasic(Infer.java:1595) at com.sun.tools.javac.comp.Infer$InferenceContext.solveLegacy(Infer.java:1622) at com.sun.tools.javac.comp.Infer.instantiateMethod(Infer.java:188) at com.sun.tools.javac.comp.Resolve.rawInstantiate(Resolve.java:558) at com.sun.tools.javac.comp.Resolve.checkMethod(Resolve.java:586) at com.sun.tools.javac.comp.Attr.checkMethod(Attr.java:3806) at com.sun.tools.javac.comp.Attr.checkIdInternal(Attr.java:3607) at com.sun.tools.javac.comp.Attr.checkMethodIdInternal(Attr.java:3508) at com.sun.tools.javac.comp.Attr.checkMethodId(Attr.java:3486) at com.sun.tools.javac.comp.Attr.checkId(Attr.java:3474) at com.sun.tools.javac.comp.Attr.visitIdent(Attr.java:3230) at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:1976) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1842) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1446) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:636) at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1611) at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1277) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:672) at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1148) at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:890) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.visitForLoop(Attr.java:1176) at com.sun.tools.javac.tree.JCTree$JCForLoop.accept(JCTree.java:981) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:672) at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1148) at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:890) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.visitSynchronized(Attr.java:1348) at com.sun.tools.javac.tree.JCTree$JCSynchronized.accept(JCTree.java:1120) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:672) at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1148) at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:890) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.visitForeachLoop(Attr.java:1211) at com.sun.tools.javac.tree.JCTree$JCEnhancedForLoop.accept(JCTree.java:1016) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:672) at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1148) at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:890) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1045) at org.netbeans.lib.nbjavac.services.NBAttr.visitMethodDef(NBAttr.java:76) at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:777) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:611) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:656) at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4319) at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4216) at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4150) at com.sun.tools.javac.comp.Attr.attrib(Attr.java:4124) at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1286) at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1258) at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:469) at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:448) at org.netbeans.modules.java.source.parsing.JavacParser.moveToPhase(JavacParser.java:663) at org.netbeans.modules.java.source.parsing.JavacParser.getResult(JavacParser.java:520) at org.netbeans.modules.java.source.parsing.JavacParser.getResult(JavacParser.java:173) at org.netbeans.modules.parsing.impl.TaskProcessor.callGetResult(TaskProcessor.java:608) at org.netbeans.modules.parsing.impl.SourceCache.getResult(SourceCache.java:247) at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:720) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724)