Flick command arguments are not bound correctly

[ghost]

When executing POST /wd/hub/session/<session_id>/touch/flick with payload:

{
  "element": "25",
  "xoffset": 0,
  "yoffset": -100,
  "speed": 100
}

... the command that is ran under the hood is the following (according to the logs):

{
  "cmd": "action",
  "action": "element:swipe",
  "params": {
    "startX": "25",
    "endY": 0,
    "steps": 6,
    "elementId": 100
  }
}

It looks like the payload arguments are not bound correctly to the command arguments, leading to a 500. See the full log below:

[HTTP] --> POST /wd/hub/session/ca72033a-5e56-444a-bf97-60507b7aaefb/touch/flick {"element":"25","xoffset":0,"yoffset":-100,"speed":100}
[MJSONWP] Calling AppiumDriver.flick() with args: ["25",null,null,0,-100,100,"ca72033a-5e56-444a-bf97-60507b7aaefb"]
[debug] [AndroidBootstrap] Sending command to android: {"cmd":"action","action":"element:swipe","params":{"startX":"25","endY":0,"steps":6,"elementId":100}}
[AndroidBootstrap] [BOOTSTRAP LOG] [debug] Got data from client: {"cmd":"action","action":"element:swipe","params":{"startX":"25","endY":0,"steps":6,"elementId":100}}
[debug] [AndroidBootstrap] Received command result from bootstrap
[HTTP] <-- POST /wd/hub/session/ca72033a-5e56-444a-bf97-60507b7aaefb/touch/flick 500 3 ms - 154
[AndroidBootstrap] [BOOTSTRAP LOG] [debug] Got command of type ACTION
[AndroidBootstrap] [BOOTSTRAP LOG] [debug] Got command action: swipe
[AndroidBootstrap] [BOOTSTRAP LOG] [debug] Command returned error:java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
[AndroidBootstrap] [BOOTSTRAP LOG] [debug] Returning result: {"status":13,"value":"Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference"}

[imurchie]

The implementation was wrong, for unknown reasons. Thanks for the detailed report!