Memory leak due to SSE Gateway

Issue

I have a memory leak due to the SSE Gateway plugin which causes my Jenkins instance to hit an Out of Memory error

Environment

Cause

As described in JENKINS-51057 the SSE Gateway plugin holds on to a queue of tasks and if those do not finish in a timely manner they can end up stacking up on the instance. This can result in the plugin using up large amounts of memory in the JVM, eventually causing an OOM error on the instance.

Resolution

Upgrade the SSE Gateway plugin 1.18 and this queue will timeout tasks that are in the queue after a certain amount of time.

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