Program: 94680
Project: 94680
Buggy source:
@Override public void executeAction(Action action,ICommandListener listener) throws RemoteException {
  if (action == null) {
    return;
  }
  String type=action.getType();
  if (type == null) {
    return;
  }
  Bundle data=action.getData();
  if (data != null) {
    data.setClassLoader(context.getClassLoader());
  }
  Drone drone=getDrone();
switch (type) {
case ConnectionActions.ACTION_CONNECT:
    ConnectionParameter parameter=data.getParcelable(ConnectionActions.EXTRA_CONNECT_PARAMETER);
  connect(parameter);
break;
case ConnectionActions.ACTION_DISCONNECT:
disconnect();
break;
case CameraActions.ACTION_START_VIDEO_STREAM:
{
Surface videoSurface=data.getParcelable(CameraActions.EXTRA_VIDEO_DISPLAY);
String videoTag=data.getString(CameraActions.EXTRA_VIDEO_TAG,"String_Node_Str");
Bundle videoProps=data.getBundle(CameraActions.EXTRA_VIDEO_PROPERTIES);
if (videoProps == null) {
videoProps=new Bundle();
videoProps.putInt(CameraActions.EXTRA_VIDEO_PROPS_UDP_PORT,VideoManager.ARTOO_UDP_PORT);
}
CommonApiUtils.startVideoStream(drone,videoProps,ownerId,videoTag,videoSurface,listener);
break;
}
case CameraActions.ACTION_STOP_VIDEO_STREAM:
{
String videoTag=data.getString(CameraActions.EXTRA_VIDEO_TAG,"String_Node_Str");
CommonApiUtils.stopVideoStream(drone,ownerId,videoTag,listener);
break;
}
case MissionActions.ACTION_BUILD_COMPLEX_MISSION_ITEM:
if (drone instanceof MavLinkDrone) {
CommonApiUtils.buildComplexMissionItem((MavLinkDrone)drone,data);
}
 else {
CommonApiUtils.postErrorEvent(CommandExecutionError.COMMAND_UNSUPPORTED,listener);
}
break;
default :
if (droneMgr != null) {
droneMgr.executeAsyncAction(clientInfo,action,listener);
}
 else {
CommonApiUtils.postErrorEvent(CommandExecutionError.COMMAND_FAILED,listener);
}
break;
}
}

Fixed version (ground truth):
@Override public void executeAction(Action action,ICommandListener listener) throws RemoteException {
  if (action == null) {
    return;
  }
  String type=action.getType();
  if (type == null) {
    return;
  }
  Bundle data=action.getData();
  if (data != null) {
    data.setClassLoader(context.getClassLoader());
  }
  Drone drone=getDrone();
switch (type) {
case ConnectionActions.ACTION_CONNECT:
    ConnectionParameter parameter=data.getParcelable(ConnectionActions.EXTRA_CONNECT_PARAMETER);
  connect(parameter);
break;
case ConnectionActions.ACTION_DISCONNECT:
disconnect();
break;
case CameraActions.ACTION_START_VIDEO_STREAM:
{
Surface videoSurface=data.getParcelable(CameraActions.EXTRA_VIDEO_DISPLAY);
String videoTag=data.getString(CameraActions.EXTRA_VIDEO_TAG,"String_Node_Str");
Bundle videoProps=data.getBundle(CameraActions.EXTRA_VIDEO_PROPERTIES);
if (videoProps == null) {
videoProps=new Bundle();
videoProps.putInt(CameraActions.EXTRA_VIDEO_PROPS_UDP_PORT,VideoManager.ARTOO_UDP_PORT);
}
CommonApiUtils.startVideoStream(drone,videoProps,ownerId,videoTag,videoSurface,listener);
break;
}
case CameraActions.ACTION_STOP_VIDEO_STREAM:
{
String videoTag=data.getString(CameraActions.EXTRA_VIDEO_TAG,"String_Node_Str");
CommonApiUtils.stopVideoStream(drone,ownerId,videoTag,listener);
break;
}
case MissionActions.ACTION_BUILD_COMPLEX_MISSION_ITEM:
if (drone instanceof MavLinkDrone || drone == null) {
CommonApiUtils.buildComplexMissionItem((MavLinkDrone)drone,data);
}
 else {
CommonApiUtils.postErrorEvent(CommandExecutionError.COMMAND_UNSUPPORTED,listener);
}
break;
default :
if (droneMgr != null) {
droneMgr.executeAsyncAction(clientInfo,action,listener);
}
 else {
CommonApiUtils.postErrorEvent(CommandExecutionError.COMMAND_FAILED,listener);
}
break;
}
}