Program: 8170
Project: 8170
Buggy source:
@Override protected void processInput(String input) throws SteamException {
  if (input.equals("String_Node_Str")) {
    controllerHandles=new SteamControllerHandle[SteamController.STEAM_CONTROLLER_MAX_COUNT];
    numControllers=controller.getConnectedControllers(controllerHandles);
    System.out.println(numControllers + "String_Node_Str");
    for (int i=0; i < numControllers; i++) {
      System.out.println("String_Node_Str" + i + "String_Node_Str"+ controllerHandles[i]);
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String[] params=input.substring("String_Node_Str".length()).split("String_Node_Str");
    if (params.length > 1) {
      SteamController.Pad pad="String_Node_Str".equals(params[0]) ? SteamController.Pad.Left : SteamController.Pad.Right;
      if (params.length == 2) {
        controller.triggerHapticPulse(controllerHandles[0],pad,Short.parseShort(params[1]));
      }
 else       if (params.length == 4) {
        controller.triggerRepeatedHapticPulse(controllerHandles[0],pad,Short.parseShort(params[1]),Short.parseShort(params[2]),Short.parseShort(params[3]),0);
      }
    }
  }
}

Fixed version (ground truth):
@Override protected void processInput(String input) throws SteamException {
  if (input.equals("String_Node_Str")) {
    controllerHandles=new SteamControllerHandle[SteamController.STEAM_CONTROLLER_MAX_COUNT];
    numControllers=controller.getConnectedControllers(controllerHandles);
    System.out.println(numControllers + "String_Node_Str");
    for (int i=0; i < numControllers; i++) {
      System.out.println("String_Node_Str" + i + "String_Node_Str"+ controllerHandles[i]);
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String[] params=input.substring("String_Node_Str".length()).split("String_Node_Str");
    if (params.length > 1) {
      SteamController.Pad pad="String_Node_Str".equals(params[0]) ? SteamController.Pad.Left : SteamController.Pad.Right;
      if (params.length == 2) {
        controller.triggerHapticPulse(controllerHandles[0],pad,Short.parseShort(params[1]));
      }
 else       if (params.length == 4) {
        controller.triggerRepeatedHapticPulse(controllerHandles[0],pad,Short.parseShort(params[1]),Short.parseShort(params[2]),Short.parseShort(params[3]),0);
      }
    }
  }
 else   if (input.startsWith("String_Node_Str")) {
    String setName=input.substring("String_Node_Str".length());
    setHandle=controller.getActionSetHandle(setName);
    System.out.println("String_Node_Str" + setName + "String_Node_Str"+ setHandle.getNativeHandle());
  }
 else   if (input.startsWith("String_Node_Str")) {
    String actionName=input.substring("String_Node_Str".length());
    digitalActionHandle=controller.getDigitalActionHandle(actionName);
    System.out.println("String_Node_Str" + actionName + "String_Node_Str"+ digitalActionHandle.getNativeHandle());
  }
 else   if (input.startsWith("String_Node_Str")) {
    String actionName=input.substring("String_Node_Str".length());
    analogActionHandle=controller.getAnalogActionHandle(actionName);
    System.out.println("String_Node_Str" + actionName + "String_Node_Str"+ analogActionHandle.getNativeHandle());
  }
}