The act of releasing JVM structures lets the GC thread process these structures in a safe fashion; reading and writing to partially updated structures can cause unexpected behavior and crashes.
释放J VM结构的操作让gc线程以一种安全的形式处理这些结构；对部分更新的结构进行读和写操作可能导致不可预测的行为和冲突。
In the absence of synchronization, if one thread writes to a variable and another thread reads that same variable, the reading thread could see stale, or out-of-date, data.
没有同步时，如果一个线程读取另外一个线程正在写的变量，读的线程将看到过时的数据。
The best practice in reading a WebSphere Application Server trace is to follow the thread ID in question to understand the flow of events.
阅读WebSphere Application Server跟踪文件时的最佳实践是，跟踪所涉及的线程ID，以了解事件流。
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