Test output is

----------System.out:(55/4415)----------
[0.133s][info][stringdedup,init] String Deduplication is enabled
[0.168s][debug][stringdedup ] Starting string deduplication thread
[0.169s][debug][stringdedup,phases,start] Idle start
[2.817s][debug][stringdedup,phases ] Idle end: 2648.042ms
[2.817s][debug][stringdedup,phases,start] Active start
[2.817s][debug][stringdedup,phases,start] Process start
[2.832s][debug][stringdedup,phases ] Process end: 15.739ms
[2.832s][debug][stringdedup,phases ] Active end: 15.776ms
[2.832s][info ][stringdedup ] Concurrent String Deduplication 4254/256.7K (new), 3343/103.4K (deduped), avg 40.3%, 15.739ms of 15.776ms
[2.832s][debug][stringdedup ] Last Process: 1/15.739ms, Idle: 1/2648.042ms
[2.832s][debug][stringdedup ] Inspected: 8411
[2.832s][debug][stringdedup ] Known: 2898( 34.5%)
[2.832s][debug][stringdedup ] Shared: 1259( 15.0%)
[2.832s][debug][stringdedup ] New: 4254( 50.6%) 256.7K
[2.832s][debug][stringdedup ] Replaced: 0( 0.0%)
[2.832s][debug][stringdedup ] Deleted: 0( 0.0%)
[2.832s][debug][stringdedup ] Deduplicated: 3343( 39.7%) 103.4K( 40.3%)
[2.832s][debug][stringdedup ] Skipped: 7 (dead), 0 (incomplete), 0 (shared)
[2.832s][debug][stringdedup ] Total Process: 1/15.739ms, Idle: 1/2648.042ms
[2.832s][debug][stringdedup ] Inspected: 8411
[2.832s][debug][stringdedup ] Known: 2898( 34.5%)
[2.832s][debug][stringdedup ] Shared: 1259( 15.0%)
[2.832s][debug][stringdedup ] New: 4254( 50.6%) 256.7K
[2.832s][debug][stringdedup ] Replaced: 0( 0.0%)
[2.832s][debug][stringdedup ] Deleted: 0( 0.0%)
[2.832s][debug][stringdedup ] Deduplicated: 3343( 39.7%) 103.4K( 40.3%)
[2.832s][debug][stringdedup ] Skipped: 7 (dead), 0 (incomplete), 0 (shared)
[2.832s][debug][stringdedup ] Table: 4254 values in 503 buckets, 0 dead (0)
[2.832s][debug][stringdedup,phases,start] Idle start
[2.832s][debug][stringdedup,phases ] Idle end: 0.008ms
[2.832s][debug][stringdedup,phases,start] Active start
[2.832s][debug][stringdedup,phases,start] Process start
[2.832s][debug][stringdedup,phases ] Process end: 0.012ms
[2.832s][debug][stringdedup,phases ] Active end: 0.020ms
[2.832s][info ][stringdedup ] Concurrent String Deduplication 2/72.0B (new), 0/0.0B (deduped), avg 40.3%, 0.012ms of 0.020ms
[2.832s][debug][stringdedup ] Last Process: 1/0.012ms, Idle: 1/0.008ms
[2.832s][debug][stringdedup ] Inspected: 5
[2.832s][debug][stringdedup ] Known: 3( 60.0%)
[2.832s][debug][stringdedup ] Shared: 0( 0.0%)
[2.833s][debug][stringdedup ] New: 2( 40.0%) 72.0B
[2.833s][debug][stringdedup ] Replaced: 3(150.0%)
[2.833s][debug][stringdedup ] Deleted: 0( 0.0%)
[2.833s][debug][stringdedup ] Deduplicated: 0( 0.0%) 0.0B( 0.0%)
[2.833s][debug][stringdedup ] Skipped: 0 (dead), 0 (incomplete), 0 (shared)
[2.833s][debug][stringdedup ] Total Process: 2/15.750ms, Idle: 2/2648.050ms
[2.833s][debug][stringdedup ] Inspected: 8416
[2.833s][debug][stringdedup ] Known: 2901( 34.5%)
[2.833s][debug][stringdedup ] Shared: 1259( 15.0%)
[2.833s][debug][stringdedup ] New: 4256( 50.6%) 256.7K
[2.833s][debug][stringdedup ] Replaced: 3( 0.1%)
[2.833s][debug][stringdedup ] Deleted: 0( 0.0%)
[2.833s][debug][stringdedup ] Deduplicated: 3343( 39.7%) 103.4K( 40.3%)
[2.833s][debug][stringdedup ] Skipped: 7 (dead), 0 (incomplete), 0 (shared)
[2.833s][debug][stringdedup ] Table: 4256 values in 503 buckets, 0 dead (0)
[2.833s][debug][stringdedup,phases,start] Idle start
----------System.err:(11/599)----------
java.lang.AssertionError
at jdk.jfr.event.gc.detailed.TestStringDeduplicationEvent.main(TestStringDeduplicationEvent.java:147)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1516)