During evaluation of 'row'
Caused: java.lang.NullPointerException
   at org.netbeans.modules.debugger.jpda.models.ArgumentObjectVariable.<init>(ArgumentObjectVariable.java:69)
   at org.netbeans.modules.debugger.jpda.models.CallStackFrameImpl.getMethodArguments(CallStackFrameImpl.java:456)
   at org.netbeans.modules.debugger.jpda.expr.EvaluatorVisitor.visitIdentifier(EvaluatorVisitor.java:1915)
   at org.netbeans.modules.debugger.jpda.expr.EvaluatorVisitor.visitIdentifier(EvaluatorVisitor.java:192)
   at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:1698)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:49)
   at org.netbeans.modules.debugger.jpda.expr.EvaluatorVisitor.scan(EvaluatorVisitor.java:228)
   at org.netbeans.modules.debugger.jpda.expr.EvaluatorVisitor.scan(EvaluatorVisitor.java:192)
   at org.netbeans.modules.debugger.jpda.projects.EditorContextImpl.parseExpression(EditorContextImpl.java:1912)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.netbeans.modules.debugger.jpda.EditorContextBridge$CompoundContextProvider.parseExpression(EditorContextBridge.java:387)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   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:165)
   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$AssociatedExpression.evaluate(EvaluatorExpression.java:90)
   at org.netbeans.modules.debugger.jpda.expr.EvaluatorExpression.evaluate(EvaluatorExpression.java:73)
   at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluateGeneric(JPDADebuggerImpl.java:833)
   at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluate(JPDADebuggerImpl.java:343)
   at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluate(JPDADebuggerImpl.java:307)
   at org.netbeans.modules.debugger.jpda.projects.ToolTipAnnotation.run(ToolTipAnnotation.java:211)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1957)