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73a672b8dd
The watcher stats implementation tries to look at all queued watches before preparing the result. We want to cast these to a WatchExecutionTask to extract the context to prepare the stats for queued watches. The problem is that not all tasks on the watcher queue were WatchExecutionTask. This is because a manually executed watch was not even at all wrapped in a WatchExecutionTask. Moreover, we were using ExecutorService#submit(Runnable) which would wrap the Runnable in a FutureTask<?>. This commit addresses this by using a WatchExecutionTask, and also using ExecutorService#execute(Runnable) so that no wrapping occurs. This will let us continue with the assumption that all queued tasks are WatchExecutionTasks.