First, the throwable property is not a supported JAX-RPC type.

首先，throwable属性不是JAX - RPC支持的类型。

I use the method GWT.log , which takes a string and a Throwable as arguments.

我使用GWT . log方法，该方法使用字符串和Throwable作为参数。

Void failed (Throwable e, a attachment) executes if the task fails to complete due to Throwable e.

void failed (Throwable e, a attachment)在任务由于Throwable e而失败时执行。

There's only one method to implement: public Object invoke (MethodInvocation invocation) throws Throwable.

要实现的方法只有一个：public Object invoke (MethodInvocation invocation) throws Throwable。

If the specified object is an instance of Throwable, it becomes the cause of the newly constructed assertion error.

如果该指定对象是Throwable的实例，它将导致创建一个新的断言错误。

But the exception parameter t is declared as a Throwable, and Throwable cannot be thrown from foo unless the throws clause is modified.

但是异常参数t被声明为Throwable，且如果没有修改throws子句，则Throwable不能从foo中抛出。

The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch.

Exception类和它的子类都是Throwable的一种形式，表示这种情况可以在合理的应用中进行捕获。

Also note that the invoke method declares that it throws Throwable, so you either must catch it or let your testing framework handle it, as I've done.

还请注意invoke方法声明它要throws Throwable，必须捕获异常或者让测试框架处理它，就像我做的那样。

I've also added throwable handling to the basic timing code, so that when a method exits through a throw rather than a normal return the basic thrown information will be included in the trace.

我还在基本计时代码中增加了一个throwable处理，这样，当方法由于一个抛出而退出而不是正常返回时，在跟踪中就会加入基本抛出信息。