Threads are divided into Worker Thread and User Interface Thread.

线程分为辅助线程(工作者线程)和用户界面线程。

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This is because remote invocations in JSR 172 are blocking calls, and if invoked in the main event thread, the user interface will freeze until the remote invocation completes.

由于JSR 172中的远程调用是按模块进行的，而且如果在主事件线程中调用，用户界面会冻结，直到远程调用结束。

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When a pluglet is executed, it runs on the Rational Software Architect (User Interface) UI thread.

当运行 pluglet 时，它在 Rational Software Architect（用户界面）UI 线程上运行。

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