CAMEL-20708 added volatile keyword for double locking in JiraEndpoint

[dk2k]

CAMEL-20708 added volatile keyword for double locking in JiraEndpoint

[github-actions]

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[orpiske]

You could also remove the transient keyword.

[orpiske]

I don't think this is needed. The Java memory guarantees should ensure that all changes made after the lock are visible to all threads affected by it.