[CAMEL-17901] camel-google-pubsub - concurrent access error on shutdown

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.14.1
• Fix Version/s: 3.14.3, 3.17.0
• Component/s: camel-google-pubsub
• Estimated Complexity: Unknown
• Assignee: Unassigned
• Reporter: Vincent Paturet
• Created: 04/Apr/22 12:51
• Updated: 05/Apr/22 09:53
• Resolved: 05/Apr/22 09:53

Description

We experience random errors when stopping a Camel application (Camel 3.14.1) that cause the application to hang forever and not release the Camel Master leadership:

 

Error stopping consumer while loosing leadership. This exception is ignored.. Caused by: [java.lang.NullPointerException - null] java.lang.NullPointerException: null
at java.base/java.util.LinkedList$ListItr.next(Unknown Source)
at java.base/java.lang.Iterable.forEach(Unknown Source)
at org.apache.camel.component.google.pubsub.GooglePubsubConsumer.doStop(GooglePubsubConsumer.java:85)

Issue Links

• links to: GitHub Pull Request #7347