Commit 1d7919a7 authored Mar 11, 2015 by riddle_hsu

[ActivityManager] Fix index OOB when resetting removed task

Assume task T has an activity X lives in process P.
When P is died and before death recipient being called,
start activity with flag RESET_TASK_IF_NEEDED to bring the
existed task T.

Then scheduleResumeActivity IPC will fail and trigger start
a new process that removes task T.

That results resetTaskIfNeededLocked cannot find the task
when continuing the start flow.

Detail:
https://code.google.com/p/android/issues/detail?id=159558

Change-Id: Icc400c7a6c481a3f78657e9fb83cf0c3a17dde68

parent e59b7ce2

services/core/java/com/android/server/am/ActivityStack.java

+5 −3

Original line number	Diff line number	Diff line
		@@ -2477,9 +2477,11 @@ final class ActivityStack {
		}

		int taskNdx = mTaskHistory.indexOf(task);
		if (taskNdx >= 0) {
		do {
		taskTop = mTaskHistory.get(taskNdx--).getTopActivity();
		} while (taskTop == null && taskNdx >= 0);
		}

		if (topOptions != null) {
		// If we got some ActivityOptions from an activity on top that