@Override public void addStateChangeListener(TaskId taskId, StateChangeListener<TaskState> stateChangeListener) { requireNonNull(taskId, "taskId is null"); tasks.getUnchecked(taskId).addStateChangeListener(stateChangeListener); }
@Override public void addStateChangeListener(TaskId taskId, StateChangeListener<TaskState> stateChangeListener) { requireNonNull(taskId, "taskId is null"); tasks.getUnchecked(taskId).addStateChangeListener(stateChangeListener); } }