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I found this exception in the notification view. Sorry, I do not know how to reproduce. I guess I used some expressions in the Evaluator (as you can see in the stacktrace). java.lang.InternalError: Location with invalid code index at com.sun.tools.jdi.ConcreteMethodImpl.codeIndexToLineInfo(ConcreteMethodImpl.java:182) at com.sun.tools.jdi.LocationImpl.getBaseLineInfo(LocationImpl.java:126) at com.sun.tools.jdi.LocationImpl.getLineInfo(LocationImpl.java:140) at com.sun.tools.jdi.LocationImpl.sourcePath(LocationImpl.java:205) at com.sun.tools.jdi.LocationImpl.sourcePath(LocationImpl.java:200) at org.netbeans.modules.debugger.jpda.jdi.LocationWrapper.sourcePath(LocationWrapper.java:672) at org.netbeans.modules.debugger.jpda.SourcePath.getURL(SourcePath.java:167) at org.netbeans.modules.debugger.jpda.JavaEvaluator.evaluateIn(JavaEvaluator.java:124) at org.netbeans.modules.debugger.jpda.JavaEvaluator.evaluate(JavaEvaluator.java:92) at org.netbeans.modules.debugger.jpda.expr.EvaluatorExpression$AssociatedExpression.evaluate(EvaluatorExpression.java:90) at org.netbeans.modules.debugger.jpda.expr.EvaluatorExpression.evaluate(EvaluatorExpression.java:73) at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluateGeneric(JPDADebuggerImpl.java:941) at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluate(JPDADebuggerImpl.java:359) at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.evaluate(JPDADebuggerImpl.java:335) at org.netbeans.modules.debugger.jpda.models.AbstractObjectVariable.evaluate(AbstractObjectVariable.java:684) at sun.reflect.GeneratedMethodAccessor341.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.netbeans.modules.debugger.jpda.ui.models.VariablesFormatterFilter.getValueAt(VariablesFormatterFilter.java:495) at org.netbeans.modules.debugger.jpda.ui.models.VariablesFormatterFilter.getValueAt(VariablesFormatterFilter.java:465) at org.netbeans.modules.debugger.jpda.ui.models.VariablesTreeModelFilter.getValueAt(VariablesTreeModelFilter.java:552) at org.netbeans.spi.viewmodel.Models$CompoundTableModel.getValueAt(Models.java:1447) at org.netbeans.modules.debugger.jpda.ui.models.BoldVariablesTableModelFilter.getValueAt(BoldVariablesTableModelFilter.java:97) at org.netbeans.spi.viewmodel.Models$CompoundTableModel.getValueAt(Models.java:1447) at org.netbeans.modules.debugger.jpda.models.PendingActionsFilter.getValueAt(PendingActionsFilter.java:130) at org.netbeans.spi.viewmodel.Models$CompoundTableModel.getValueAt(Models.java:1447) at org.netbeans.spi.viewmodel.Models$CompoundModel.getValueAt(Models.java:4571) at org.netbeans.modules.viewmodel.TreeModelNode$MyProperty.run(TreeModelNode.java:1881) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042) ---- Product Version: NetBeans IDE Dev (Build 201307072319) Java: 1.7.0_21; Java HotSpot(TM) Client VM 23.21-b01 Runtime: Java(TM) SE Runtime Environment 1.7.0_21-b11 System: Windows XP version 5.1 running on x86; Cp1252; de_DE (nb)
StackFrame.location() probably returned a wrong location. But without steps to reproduce we can not do much about this.