The statistics are being collected by a message-driven bean (MDB) that is constructed to listen to the topic and increment an internal counter when a message is received.
统计信息由消息驱动的 bean (MDB)收集，MDB被构建为在收到消息时侦听主题并增量内部计数器。
At this time the internal counter is reset to the initially provided total number of processes, making the Barrier instance available for reuse in the next round of synchronization.
这时，内部的计数器被重新设置回最初提供的进程总数，从而使得Barrier实例可以在下一轮同步中重复使用。
At this time the internal counter is reset to the initially provided total number of processes, making the Barrier instance available for reuse in the next round of synchronization.
这时，内部的计数器被重新设置回最初提供的进程总数，从而使得Barrier实例可以在下一轮同步中重复使用。
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