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https://issues.apache.org/jira/browse/BEAM-14144?focusedWorklogId=745883&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-745883
]
ASF GitHub Bot logged work on BEAM-14144:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Mar/22 15:31
Start Date: 22/Mar/22 15:31
Worklog Time Spent: 10m
Work Description: steveniemitz commented on pull request #17151:
URL: https://github.com/apache/beam/pull/17151#issuecomment-1075328798
I can't for the life of me figure out why these builds are failing? I can
run them fine locally, and they don't even really make sense.
For example:
```
11:27:25
/home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_Examples_Dataflow_Commit/src/runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/util/JfrInterop.java:57:
error: [assignment.type.incompatible] incompatible types in assignment.
11:27:25 jfrConfig = configClass.getMethod("getConfiguration",
String.class).invoke(null, "profile");
11:27:25
^
11:27:25 found : @Initialized @Nullable Object
11:27:25 required: @Initialized @NonNull Object
```
Passing in `null` to invoke is perfectly valid for static methods.
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Issue Time Tracking
-------------------
Worklog Id: (was: 745883)
Time Spent: 20m (was: 10m)
> Record JFR profiles when GC thrashing is detected
> -------------------------------------------------
>
> Key: BEAM-14144
> URL: https://issues.apache.org/jira/browse/BEAM-14144
> Project: Beam
> Issue Type: Improvement
> Components: runner-dataflow
> Reporter: Steve Niemitz
> Assignee: Steve Niemitz
> Priority: P2
> Time Spent: 20m
> Remaining Estimate: 0h
>
> It'd be useful for debugging GC issues in jobs to have allocation profiles
> when it was occurring. In java 9+, JFR is included in the JDK, we could use
> that to record profiles when GC thrashing is detected.
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