protected void runTests() throws Exception {
    /*
     * Get to the top of main()
     * to determine targetClass and mainThread
     */
    BreakpointEvent bpe = startToMain("GetLocalVariables2Targ");
    targetClass = bpe.location().declaringType();
    mainThread = bpe.thread();
    EventRequestManager erm = vm().eventRequestManager();

    bpe = resumeTo("GetLocalVariables2Targ", "bar", "(I)Z");

    /*
     * Inspect the stack frame for main(), not bar()...
     */
    StackFrame frame = bpe.thread().frame(1);
    List localVars = frame.visibleVariables();
    System.out.println("    Visible variables at this point are: ");
    for (Iterator it = localVars.iterator(); it.hasNext(); ) {
      LocalVariable lv = (LocalVariable) it.next();
      System.out.print(lv.name());
      System.out.print(" typeName: ");
      System.out.print(lv.typeName());
      System.out.print(" signature: ");
      System.out.print(lv.type().signature());
      System.out.print(" primitive type: ");
      System.out.println(lv.type().name());

      if ("command".equals(lv.name())) {
        failure("Failure: LocalVariable \"command\" should not be visible at this point.");
        if (lv.isVisible(frame)) {
          System.out.println("Failure: \"command.isvisible(frame)\" returned true.");
        }
      }
    }

    /*
     * resume the target listening for events
     */
    listenUntilVMDisconnect();

    /*
     * deal with results of test
     * if anything has called failure("foo") testFailed will be true
     */
    if (!testFailed) {
      println("GetLocalVariables2Test: passed");
    } else {
      throw new Exception("GetLocalVariables2Test: failed");
    }
  }
示例#2
0
  /**
   * Move through a list of stack frames, searching for references to code found in the current
   * sketch. Return with a RunnerException that contains the location of the error, or if nothing is
   * found, just return with a RunnerException that wraps the error message itself.
   */
  protected SketchException findException(
      String message, ObjectReference or, ThreadReference thread) {
    try {
      // use to dump the stack for debugging
      //      for (StackFrame frame : thread.frames()) {
      //        System.out.println("frame: " + frame);
      //      }

      List<StackFrame> frames = thread.frames();
      for (StackFrame frame : frames) {
        try {
          Location location = frame.location();
          String filename = null;
          filename = location.sourceName();
          int lineNumber = location.lineNumber() - 1;
          SketchException rex = build.placeException(message, filename, lineNumber);
          if (rex != null) {
            return rex;
          }
        } catch (AbsentInformationException e) {
          // Any of the thread.blah() methods can throw an AbsentInformationEx
          // if that bit of data is missing. If so, just write out the error
          // message to the console.
          // e.printStackTrace();  // not useful
          exception = new SketchException(message);
          exception.hideStackTrace();
          listener.statusError(exception);
        }
      }
    } catch (IncompatibleThreadStateException e) {
      // This shouldn't happen, but if it does, print the exception in case
      // it's something that needs to be debugged separately.
      e.printStackTrace();
    }
    // before giving up, try to extract from the throwable object itself
    // since sometimes exceptions are re-thrown from a different context
    try {
      // assume object reference is Throwable, get stack trace
      Method method =
          ((ClassType) or.referenceType())
              .concreteMethodByName("getStackTrace", "()[Ljava/lang/StackTraceElement;");
      ArrayReference result =
          (ArrayReference)
              or.invokeMethod(
                  thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED);
      // iterate through stack frames and pull filename and line number for each
      for (Value val : result.getValues()) {
        ObjectReference ref = (ObjectReference) val;
        method =
            ((ClassType) ref.referenceType())
                .concreteMethodByName("getFileName", "()Ljava/lang/String;");
        StringReference strref =
            (StringReference)
                ref.invokeMethod(
                    thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED);
        String filename = strref == null ? "Unknown Source" : strref.value();
        method = ((ClassType) ref.referenceType()).concreteMethodByName("getLineNumber", "()I");
        IntegerValue intval =
            (IntegerValue)
                ref.invokeMethod(
                    thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED);
        int lineNumber = intval.intValue() - 1;
        SketchException rex = build.placeException(message, filename, lineNumber);
        if (rex != null) {
          return rex;
        }
      }
      //      for (Method m : ((ClassType) or.referenceType()).allMethods()) {
      //        System.out.println(m + " | " + m.signature() + " | " + m.genericSignature());
      //      }
      // Implemented for 2.0b9, writes a stack trace when there's an internal error inside core.
      method = ((ClassType) or.referenceType()).concreteMethodByName("printStackTrace", "()V");
      //      System.err.println("got method " + method);
      or.invokeMethod(
          thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED);

    } catch (Exception e) {
      e.printStackTrace();
    }
    // Give up, nothing found inside the pile of stack frames
    SketchException rex = new SketchException(message);
    // exception is being created /here/, so stack trace is not useful
    rex.hideStackTrace();
    return rex;
  }