Examples of com.sun.jdi.ThreadReference.frame()

com.sun.jdi.ThreadReference.frame()
Returns the {@link StackFrame} at the given index in thethread's current call stack. Index 0 retrieves the current frame; higher indices retrieve caller frames. The thread must be suspended (normally through an interruption to the VM) to get this information, and it is only valid until the thread is resumed again. @param index the desired frame @return the requested {@link StackFrame} @throws IncompatibleThreadStateException if the thread isnot suspended in the target VM @throws java.lang.IndexOutOfBoundsException if the index is greater thanor equal to {@link #frameCount} or is negative.

  public static String fields() {
    ThreadReference threadRef = checkAndGetCurrentThread();
    SuspendThreadStack threadStack = SuspendThreadStack.getInstance();
    StringBuilder sb = new StringBuilder();
    try {
      StackFrame stackFrame = threadRef.frame(threadStack.getCurFrame());
      ObjectReference thisObj = stackFrame.thisObject();
      Map<Field, Value> values = thisObj.getValues(thisObj.referenceType().visibleFields());
      List<String> fieldNames = new ArrayList<String>();
      for (Field field : values.keySet()) {
        fieldNames.add(field.name());

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    SuspendThreadStack threadStack = SuspendThreadStack.getInstance();
    int curFrame = threadStack.getCurFrame();
    StringBuilder sb = new StringBuilder();
    try {
      List<String> varNames = new ArrayList<String>();
      for (LocalVariable var : threadRef.frame(curFrame).visibleVariables()) {
        varNames.add(var.name());
      }
      int maxLen = getMaxLength(varNames)+2;
      for (LocalVariable var : threadRef.frame(curFrame).visibleVariables()) {
        Value value = threadRef.frame(curFrame).getValue(var);

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      List<String> varNames = new ArrayList<String>();
      for (LocalVariable var : threadRef.frame(curFrame).visibleVariables()) {
        varNames.add(var.name());
      }
      int maxLen = getMaxLength(varNames)+2;
      for (LocalVariable var : threadRef.frame(curFrame).visibleVariables()) {
        Value value = threadRef.frame(curFrame).getValue(var);
        sb.append(padStr(maxLen,var.name())).append(":");
        sb.append(getPrettyPrintStr(value));
        sb.append("\n");
      }

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      for (LocalVariable var : threadRef.frame(curFrame).visibleVariables()) {
        varNames.add(var.name());
      }
      int maxLen = getMaxLength(varNames)+2;
      for (LocalVariable var : threadRef.frame(curFrame).visibleVariables()) {
        Value value = threadRef.frame(curFrame).getValue(var);
        sb.append(padStr(maxLen,var.name())).append(":");
        sb.append(getPrettyPrintStr(value));
        sb.append("\n");
      }
    } catch (AbsentInformationException e) {

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  public static Value getJdiValue(Expression exp) {
    ThreadReference threadRef = checkAndGetCurrentThread();
    try {
      SuspendThreadStack threadStack = SuspendThreadStack.getInstance();
      StackFrame stackFrame = threadRef.frame(threadStack.getCurFrame());
      ObjectReference thisObj = stackFrame.thisObject();
      Value value = eval(threadRef, exp, thisObj,false);
      return value;
    } catch (IncompatibleThreadStateException e) {
      throw new ExpressionEvalException("eval expression error, caused by : " + e.getMessage());

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            final Location loc = be.location();
            final ThreadReference tr = be.thread();  
            if (loc.equals(interceptIn)) {
              LocalVariable result = (LocalVariable) loc.method().variablesByName("result").get(0);
              LocalVariable buffer = (LocalVariable) loc.method().arguments().get(0);
              ArrayReference buf = (ArrayReference) tr.frame(0).getValue(buffer);
              new InputInterceptHandler(tr, buf, result).start();
            } else if (loc.equals(interceptOut)) {
              LocalVariable result = (LocalVariable) loc.method().variablesByName("result").get(0);
              LocalVariable data = (LocalVariable) loc.method().arguments().get(0);
              ArrayReference buf = (ArrayReference) tr.frame(0).getValue(data);

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              ArrayReference buf = (ArrayReference) tr.frame(0).getValue(buffer);
              new InputInterceptHandler(tr, buf, result).start();
            } else if (loc.equals(interceptOut)) {
              LocalVariable result = (LocalVariable) loc.method().variablesByName("result").get(0);
              LocalVariable data = (LocalVariable) loc.method().arguments().get(0);
              ArrayReference buf = (ArrayReference) tr.frame(0).getValue(data);
              List values = buf.getValues();
              byte[] temp = new byte[buf.length()];
              for (int i = 0; i < temp.length; i++) {
                temp[i] = ((ByteValue)values.get(i)).byteValue();
              }

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              if (temp.length == 0) {
                pipedOut.close();
                pipedIn.close();
                done = true;
              }
              tr.frame(0).setValue(result, vm.mirrorOf(true));
              tr.resume();
            } else {
              throw new RuntimeException("Unknown location: "+loc);
            }  
          } else {

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