[FLINK-8138] Race in TaskAsyncCallTest leads to test time out

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.5.0
• Fix Version/s: 1.5.0
• Component/s: Tests
• Labels: test-stability
• Assignee: Till Rohrmann
• Reporter: Ufuk Celebi
• Created: 23/Nov/17 09:18
• Updated: 24/Feb/18 18:18
• Resolved: 24/Feb/18 18:18

Description

TaskAsyncCallTest#testSetsUserCodeClassLoader times out with a stack trace on Travis on a personal branch with unrelated changes on top of 1.4.0 RC 0.

I've attached the Travis output to this issue. The main thread is stuck in

"main" #1 prio=5 os_prio=0 tid=0x00007ff59000a000 nid=0xb9b in Object.wait() [0x00007ff598965000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000833994c8> (a java.lang.Object)
	at java.lang.Object.wait(Object.java:502)
	at org.apache.flink.core.testutils.OneShotLatch.await(OneShotLatch.java:56)
	- locked <0x00000000833994c8> (a java.lang.Object)
	at org.apache.flink.runtime.taskmanager.TaskAsyncCallTest.testSetsUserCodeClassLoader(TaskAsyncCallTest.java:201)

There are no other Flink related threads alive.