This capability lets business process designers model and catch system exceptions, and execute error logic if a BPEL client returns a system exception.

业务流程设计人员使用此功能可以模拟和捕获系统异常，并在BPEL客户端返回系统异常时执行错误逻辑。

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Suppose the exception contained nested exceptions, and those exceptions also may contain other exceptions. You would need to override the execute method to create error messages for each of these.

假设该异常包含有嵌套异常，这些嵌套异常又包含了其他异常，因此我们必须覆盖原来的execute方法，对每个异常编写出错信息。

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This checked exception — the only one defined by the scripting package — indicates that the engine failed to parse or execute the given code.

这个选中的异常(脚本包中定义的惟一一个异常)表示引擎无法解析或执行给定的代码。

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