JDK-8205651 : TestLargeRootSet fails with exception: Could not find root object
  • Type: Bug
  • Component: hotspot
  • Sub-Component: jfr
  • Affected Version: 11,12,13,14
  • Priority: P3
  • Status: Resolved
  • Resolution: Duplicate
  • OS: generic
  • CPU: generic
  • Submitted: 2018-06-26
  • Updated: 2020-02-17
  • Resolved: 2020-02-17
Related Reports
Duplicate :  
JDK-8226511 - Implement JFR Event Streaming
Relates :  
JDK-8202662 - JFR tests fails: Could not find leak with class
Sub Tasks
JDK-8232224 :  
[TESTBUG] problemlist JFR TestLargeRootSet.java - Resolved
Description
The test jdk/jfr/event/oldobject/TestLargeRootSet.java from tier5 has been intermittently but frequently failing for some time, with a RuntimeException of "Could not find root object". There are failures on all platforms.

This was mentioned as one of the failure modes for JDK-8202662, but either has reappeared in another form or was actually a different problem all along. (I haven't tried to go that far back in this test's history.)

No interesting command line options, using G1 (default).
Comments
Duplicate of JDK-8226511
17-02-2020
[~egahlin] - I think this bug should be closed as a duplicate of JDK-8226511.
13-12-2019
This has been fixed in JEP-349 sandbox, soon to be integrated.
09-10-2019
Here's the logs from my jdk-14+15 sighting on Ubuntu 16.04: $ unzip -l jdk-14+15_linux.8205651.zip Archive: jdk-14+15_linux.8205651.zip Length Date Time Name --------- ---------- ----- ---- 15715 2019-09-19 22:09 jdk-14+15_1/failures.linux-x86_64/TestLargeRootSet.jtr.fastdebug --------- ------- 15715 1 file
23-09-2019
I have seen it once in the Event Streaming sandbox. Possibly JDK-8225797 increased the frequency since some of the code was integrated from the sandbox.
16-09-2019
Happens sporadically on all our (SAPs) platforms.
02-07-2019
Appearing again so re-opening.
02-05-2019
Have not seen this issue in CI since Oct 4th 2018.
10-01-2019