[Functions] Prevent NPE while stopping a non started Pulsar LogAppender #12643
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Motivation
Exception in thread "FUNCTIONAME-0" java.lang.NullPointerException
at org.apache.pulsar.functions.instance.LogAppender.stop(LogAppender.java:111)
at org.apache.pulsar.functions.instance.JavaInstanceRunnable.close(JavaInstanceRunnable.java:472)
at org.apache.pulsar.functions.instance.JavaInstanceRunnable.run(JavaInstanceRunnable.java:288)
Modifications
Add a Null Check
Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
Documentation
no-need-doc