詹金斯的工作和推动新的分支到远程回购

Question

我创建了jenkins作业，创建了新的分支，然后将其推送到远程仓库。脚本看起来像这样：

Object object = loadObject("myKey")

static public Object loadObject(String key){

    try {

        FileInputStream fis = MainActivity.getAppContext().openFileInput(key);
        ObjectInputStream is = new ObjectInputStream(fis);
        Object object = is.readObject();
        is.close();
        fis.close();
        return object;

    }catch(IOException ioe){
        Log.e("TAG","Stack trace is "+Log.getStackTraceString(ioe));
    } catch (ClassNotFoundException e) {
        Log.e("TAG", "Stack trace is "+Log.getStackTraceString(e));
    }

    return null;
}

Jenkins失败并且有一个控制台输出：

loadObject

这里有什么不对？我还提到我试过

//Error receiving broadcast Intent....
//Attempt to invoke virtual method 'java.io.FileInputStream android.content.Context.openFileInput(java.lang.String)' on a null object reference
FileInputStream fis = MainActivity.getAppContext().openFileInput(key);

和

 VERSION=0.1
if [ "$BRANCH_SELECTOR" == "master" ]; then
    git checkout -b release-$VERSION
    git push -u origin release-$VERSION
fi

仍然无法工作。