java.lang.NullPointerException at com.sun.tools.javac.util.Convert.packagePart(Convert.java:303) at com.sun.tools.javac.jvm.ClassReader.enterClass(ClassReader.java:2179) at com.sun.tools.javac.jvm.ClassReader.enterClass(ClassReader.java:2195) at com.sun.tools.javac.code.Types.boxedClass(Types.java:3164) at com.sun.tools.javac.comp.Attr.selectSym(Attr.java:2515) at com.sun.tools.javac.comp.Attr.visitSelect(Attr.java:2347) at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1682) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribArgs(Attr.java:527) at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1545) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1326) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:472) at com.sun.tools.javac.comp.Attr.attribLazyConstantValue(Attr.java:626) at com.sun.tools.javac.code.Symbol$VarSymbol$1.call(Symbol.java:994) Caused: java.lang.AssertionError: java.lang.NullPointerException at com.sun.tools.javac.code.Symbol$VarSymbol.getConstValue(Symbol.java:1030) at com.sun.tools.javac.comp.Attr.checkInit(Attr.java:2708) at com.sun.tools.javac.comp.Attr.visitIdent(Attr.java:2257) at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:1710) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.visitSelect(Attr.java:2311) at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1682) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:472) at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1557) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1326) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:483) at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1323) at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1172) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:503) at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:519) at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:944) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:786) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:503) at com.sun.tools.javac.comp.Attr.visitTry(Attr.java:1167) at com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1049) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:503) at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:519) at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:944) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:786) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:503) at com.sun.tools.javac.comp.Attr.visitTry(Attr.java:1147) at com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1049) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:503) at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:519) at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:944) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:786) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:453) at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:426) at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:503) at com.sun.tools.javac.comp.Attr.attribStatToTree(Attr.java:367) at com.sun.tools.javac.api.JavacTrees.attribStatToTree(JavacTrees.java:340) at com.sun.tools.javac.api.JavacTrees.getAttrContext(JavacTrees.java:313) at com.sun.tools.javac.api.JavacTrees.getScope(JavacTrees.java:217) at com.sun.tools.javac.api.JavacTrees.getScope(JavacTrees.java:84) at org.netbeans.api.java.source.TreeUtilities.scopeFor(TreeUtilities.java:490) at org.netbeans.modules.debugger.jpda.projects.EditorContextImpl$ParseExpressionTask.run(EditorContextImpl.java:1971) at org.netbeans.modules.debugger.jpda.projects.EditorContextImpl.parseExpression(EditorContextImpl.java:1900) at sun.reflect.GeneratedMethodAccessor987.invoke(GeneratedMethodAccessor987.java:0) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.netbeans.modules.debugger.jpda.EditorContextBridge.parseExpression(EditorContextBridge.java:130) at org.netbeans.modules.debugger.jpda.expr.TreeEvaluator.evaluate(TreeEvaluator.java:179) at org.netbeans.modules.debugger.jpda.JavaEvaluator.evaluateIn(JavaEvaluator.java:140) at org.netbeans.modules.debugger.jpda.JavaEvaluator.evaluate(JavaEvaluator.java:89) at org.netbeans.modules.debugger.jpda.expr.EvaluatorExpression$AssociatedExpression.evaluate(EvaluatorExpression.java:90) at org.netbeans.modules.debugger.jpda.expr.EvaluatorExpression.evaluate(EvaluatorExpression.java:73) at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluateGeneric(JPDADebuggerImpl.java:883) at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluate(JPDADebuggerImpl.java:348) at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluate(JPDADebuggerImpl.java:312) at org.netbeans.modules.debugger.jpda.projects.ToolTipAnnotation.run(ToolTipAnnotation.java:213) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)