java.io.UTFDataFormatException: malformed input around byte 2
   at java.io.DataInputStream.readUTF(DataInputStream.java:656)
   at java.io.DataInputStream.readUTF(DataInputStream.java:564)
   at org.netbeans.modules.debugger.jpda.projects.ConstantPool.parse(ConstantPool.java:118)
   at org.netbeans.modules.debugger.jpda.projects.AST2Bytecode.matchSourceTree2Bytecode(AST2Bytecode.java:110)
   at org.netbeans.modules.debugger.jpda.projects.EditorContextImpl.computeOperations(EditorContextImpl.java:2634)
   at org.netbeans.modules.debugger.jpda.projects.EditorContextImpl.getOperations(EditorContextImpl.java:1726)
   at org.netbeans.modules.debugger.jpda.ExpressionPool.createExpressionAt(ExpressionPool.java:186)
   at org.netbeans.modules.debugger.jpda.ExpressionPool.getExpressionAt(ExpressionPool.java:102)
   at org.netbeans.modules.debugger.jpda.actions.MethodChooserSupport.init(MethodChooserSupport.java:221)
   at org.netbeans.modules.debugger.jpda.actions.StepIntoActionProvider.doMethodSelection(StepIntoActionProvider.java:197)
   at org.netbeans.modules.debugger.jpda.actions.StepIntoActionProvider.runAction(StepIntoActionProvider.java:138)
   at org.netbeans.modules.debugger.jpda.actions.StepIntoActionProvider$1.run(StepIntoActionProvider.java:129)
   at org.netbeans.modules.debugger.jpda.actions.JPDADebuggerActionProvider$1.run(JPDADebuggerActionProvider.java:198)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2043)