RFR(S): 8152169: LockCompilationTest.java fails due method present in the compiler queue

[Nils Eliasson]

Hi,

Please review this test fix.

Summary:
This test tests the locking of the compilers - make sure no compiles can 
be completed while the lock is in place. When running with 
-XX:-TieredCompilation and -XX:CompileThreshold=100 we got a fairly long 
queue of compiles waiting, and when only C2 is available it can take 
longer to complete than the test wait time.

Solution:
Only allow compile of the test method - make sure we have no contention 
on the compile queue. With only a single method in the queue we can also 
reduce the wait time.

Testing:
Test run in failing configuration.

Bug: https://bugs.openjdk.java.net/browse/JDK-8152169
Webrev: http://cr.openjdk.java.net/~neliasso/8152169/webrev.01/

Regards,
Nils