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

[Christian Thalinger]

> On Mar 18, 2016, at 5:02 AM, Nils Eliasson <nils.eliasson at oracle.com> wrote:
> 
> 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/ <http://cr.openjdk.java.net/~neliasso/8152169/webrev.01/>

+             // Sleep a while and then make sure the compile is still waiting
+             try {
+                 Thread.sleep(5000);
+             } catch (Exception e) {
+                 System.out.println("Thread sleep interrupted");
+             }
Should we propagate this exception instead of just issuing a warning on stdout?

> 
> Regards,
> Nils

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