Seen in tier 5 after JDK-8238686 was integrated

 stdout: [[0.009s][info][gc] Using G1
[0.011s][debug][gc,heap,region] Activate regions [0, 8)
[0.018s][debug][gc,heap,region] Activate regions [1022, 1023)
[0.018s][debug][gc,heap,region] Activate regions [1023, 1024)
0s: Using 8 workers, each allocating: ~102M
0s: Interation: 1
[0.477s][info ][gc ] GC(0) Pause Young (Normal) (G1 Evacuation Pause) 5M->4M(10M) 8.613ms
[0.481s][info ][gc ] GC(1) Pause Young (Concurrent Start) (G1 Evacuation Pause) 5M->5M(10M) 3.246ms
[0.481s][info ][gc ] GC(2) Concurrent Mark Cycle
[0.482s][info ][gc ] GC(3) Pause Young (Normal) (G1 Evacuation Pause) 6M->6M(10M) 0.530ms
[0.483s][debug][gc,heap,region] GC(4) Activate regions [8, 9)
[0.483s][debug][gc,heap,region] GC(4) Activate regions [1021, 1022)
[0.483s][debug][gc,heap,region] GC(4) Activate regions [1020, 1021)
[0.489s][debug][gc,heap,region] GC(4) Activate regions [9, 35)
[0.489s][info ][gc ] GC(4) Pause Young (Normal) (G1 Evacuation Pause) 8M->8M(39M) 5.867ms
[0.493s][info ][gc ] GC(5) Pause Young (Normal) (G1 Evacuation Pause) 18M->18M(39M) 1.710ms
[0.494s][info ][gc ] GC(2) Pause Remark 19M->19M(39M) 1.183ms
[0.497s][info ][gc ] GC(6) Pause Young (Normal) (G1 Evacuation Pause) 24M->25M(39M) 1.260ms
[0.499s][info ][gc ] GC(7) Pause Young (Normal) (G1 Evacuation Pause) 29M->29M(39M) 1.353ms
[0.500s][info ][gc ] GC(2) Pause Cleanup 33M->33M(39M) 0.076ms
[0.501s][debug][gc,heap,region] GC(8) Activate regions [1019, 1020)
[0.501s][debug][gc,heap,region] GC(8) Activate regions [1018, 1019)
[0.512s][debug][gc,heap,region] GC(8) Activate regions [35, 117)
[0.512s][info ][gc ] GC(8) Pause Young (Prepare Mixed) (G1 Evacuation Pause) 33M->34M(123M) 11.829ms
[0.513s][info ][gc ] GC(2) Concurrent Mark Cycle 32.169ms
[0.534s][info ][gc ] GC(9) Pause Young (Mixed) (G1 Evacuation Pause) 61M->60M(123M) 4.838ms
[0.556s][info ][gc ] GC(10) Pause Young (Concurrent Start) (G1 Evacuation Pause) 79M->81M(123M) 8.877ms
[0.556s][info ][gc ] GC(11) Concurrent Mark Cycle
[0.564s][info ][gc ] GC(12) Pause Young (Normal) (G1 Evacuation Pause) 94M->95M(123M) 4.285ms
[0.568s][debug][gc,heap,region] GC(13) Activate regions [117, 363)
[0.569s][info ][gc ] GC(13) Pause Young (Normal) (G1 Evacuation Pause) 103M->104M(369M) 2.136ms
[0.621s][info ][gc ] GC(14) Pause Young (Normal) (G1 Evacuation Pause) 186M->185M(369M) 29.966ms
[0.627s][info ][gc ] GC(11) Pause Remark 188M->188M(369M) 1.591ms
[0.659s][info ][gc ] GC(15) Pause Young (Normal) (G1 Evacuation Pause) 242M->243M(369M) 11.016ms
[0.695s][info ][gc ] GC(16) Pause Young (Normal) (G1 Evacuation Pause) 282M->283M(369M) 23.714ms
[0.707s][debug][gc,heap,region] GC(17) Activate regions [363, 625)
[0.707s][info ][gc ] GC(17) Pause Young (Normal) (G1 Evacuation Pause) 309M->310M(631M) 6.885ms
[0.757s][info ][gc ] GC(18) Pause Young (Normal) (G1 Evacuation Pause) 410M->410M(631M) 15.687ms
[0.815s][info ][gc ] GC(19) Pause Young (Normal) (G1 Evacuation Pause) 478M->480M(631M) 38.705ms
[0.853s][info ][gc ] GC(20) Pause Young (Normal) (G1 Evacuation Pause) 527M->528M(631M) 35.747ms
[0.857s][info ][gc ] GC(11) Pause Cleanup 545M->545M(631M) 0.041ms
[0.872s][debug][gc,heap,region] GC(21) Activate regions [625, 783)
[0.872s][info ][gc ] GC(21) Pause Young (Prepare Mixed) (G1 Evacuation Pause) 559M->560M(789M) 13.409ms
[0.875s][info ][gc ] GC(11) Concurrent Mark Cycle 319.595ms
[0.909s][info ][gc ] GC(22) Pause Young (Mixed) (G1 Evacuation Pause) 631M->631M(789M) 24.235ms
[0.930s][info ][gc ] GC(23) Pause Young (Concurrent Start) (G1 Evacuation Pause) 680M->681M(789M) 13.566ms
[0.930s][info ][gc ] GC(24) Concurrent Mark Cycle
[0.970s][info ][gc ] GC(25) Pause Young (Normal) (G1 Evacuation Pause) 714M->716M(789M) 20.761ms
[0.983s][debug][gc,heap,region] GC(26) Activate regions [1017, 1018)
[0.983s][debug][gc,heap,region] GC(26) Activate regions [1016, 1017)
[0.993s][debug][gc,heap,region] GC(26) Activate regions [783, 877)
[0.993s][info ][gc ] GC(26) Pause Young (Normal) (G1 Evacuation Pause) 749M->750M(885M) 16.501ms
[1.031s][info ][gc ] GC(27) Pause Young (Normal) (G1 Evacuation Pause) 791M->793M(885M) 24.599ms
[1.070s][info ][gc ] GC(28) Pause Young (Normal) (G1 Evacuation Pause) 831M->832M(885M) 21.814ms
[1.115s][info ][gc ] GC(29) Pause Full (System.gc()) 857M->1M(885M) 36.110ms
[1.115s][info ][gc ] GC(24) Concurrent Mark Cycle 185.457ms
];
 stderr: [Exception in thread "main" java.lang.RuntimeException: assertLessThan: expected that 927989760 < 927989760
at jdk.test.lib.Asserts.fail(Asserts.java:715)
at jdk.test.lib.Asserts.assertLessThan(Asserts.java:105)
at jdk.test.lib.Asserts.assertLessThan(Asserts.java:88)
at gc.stress.StressUncommit.main(TestStressG1Uncommit.java:116)
]
 exitValue = 1