TestAppManager intermittently fails with jdk7

Tests run: 8, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.851 sec <<< FAILURE!
testRMAppSubmit(org.apache.hadoop.yarn.server.resourcemanager.TestAppManager) Time elapsed: 0.017 sec <<< FAILURE!
junit.framework.AssertionFailedError: app event type is wrong before expected:<KILL> but was:<APP_REJECTED>
at junit.framework.Assert.fail(Assert.java:47)
at junit.framework.Assert.failNotEquals(Assert.java:283)
at junit.framework.Assert.assertEquals(Assert.java:64)
at org.apache.hadoop.yarn.server.resourcemanager.TestAppManager.setupDispatcher(TestAppManager.java:329)
at org.apache.hadoop.yarn.server.resourcemanager.TestAppManager.testRMAppSubmit(TestAppManager.java:354)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)

I can reproduce the failure on jdk6 if I move the testRMAppSubmit to the bottom of the file, so my initial hunch is this is due to test order.