Hello,

I'm happy if Martin's delambdafication is the right solution.

However, if that is not pushed by Monday Feb. 22, I'll want to go ahead and problem list the test.

Thanks,

-Joe

On 2/19/2016 1:40 AM, Paul Sandoz wrote:
Hi Martin,

Your patch to TLR and SR looks good:

   
http://cr.openjdk.java.net/~martin/webrevs/openjdk9/jsr166-jdk9-integration/unlambdafyBootstrap/jsr166-jdk9-integration-

Sorry, i should of caught this in review, did notice the change to use lambdas 
but i forgot that this might cause issues at VM startup.

ConcurrentHashMap is used by infrastructure of j.l.invoke. CHM cannot itself 
leverage or depend on stuff that leverages lambdas otherwise it may result in a 
circular dependency at VM startup.

In this case the test tickles the code paths that results in the initialization 
of ThreadLocalRandom by CHM during startup which explains why it was yet to be 
observed in other cases.

Paul.

On 19 Feb 2016, at 07:18, Martin Buchholz <marti...@google.com> wrote:

It's easy enough to get the test to pass by delambdafication.

But we may not want to fix the test because it's not clear whether
it's a jdk lambda bug or not, and we don't sweep bugs under the rug.

Maybe instead of a "tier2" bucket we really want a "test found a bug
that's not yet fixed" bucket?

On Thu, Feb 18, 2016 at 4:48 PM, joe darcy <joe.da...@oracle.com> wrote:
Hello,

Right now, we are seeing some cross-platform intermittent failures of

    java/lang/invoke/LFCaching/LFMultiThreadCachingTest.java

as noted in bug JDK-8150014. Until that test instability is resolved, the
test should be demoted from tier 1 to tier 2.

Please see the patch below.

(Circumstantial evidence points to the changes in JDK-8145485 being
involved.)

-Joe

diff -r 3973fe856db2 test/TEST.groups
--- a/test/TEST.groups    Wed Feb 17 12:47:35 2016 -0800
+++ b/test/TEST.groups    Thu Feb 18 16:44:40 2016 -0800
@@ -29,6 +29,7 @@
     :jdk_lang \
     -java/lang/ProcessHandle/TreeTest.java \
     -java/util/zip/TestLocalTime.java \
+    -java/lang/invoke/LFCaching/LFMultiThreadCachingTest.java \
     :jdk_util \
     -java/util/WeakHashMap/GCDuringIteration.java \
     -java/util/concurrent/ThreadPoolExecutor/ConfigChanges.java \
@@ -39,6 +40,7 @@
     :jdk_math

tier2 = \
+    java/lang/invoke/LFCaching/LFMultiThreadCachingTest.java \
     java/lang/ProcessHandle/TreeTest.java \
     java/util/zip/TestLocalTime.java \
     java/util/WeakHashMap/GCDuringIteration.java \


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