Improving logging to troubleshoot pipeline metrics problem #91439
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We think that we have tracked down the problem of negative metrics (#90319) to be an exception happening in a pipeline. Unfortunately we're not currently getting any information about that exception in order to prevent it. This PR logs the exception when it detects the problem of a listener being called more than once (which is the source of the metrics problem). If the exception can be null, it logs it as a
new RuntimeException(e)
so that we still get information about the stack regardless.