The method will catch other exceptions such as MalformedURLException and IOException and throw the custom exception so that it can be caught by the GWT client.
方法捕捉其他异常(比如MalformedURLException和IOException)并抛出定制的异常，让GWT客户机可以捕捉到它。
The method will catch other exceptions such as MalformedURLException and IOException and throw the custom exception so that it can be caught by the GWT client.
方法捕捉其他异常(比如MalformedURLException和IOException)并抛出定制的异常，让GWT客户机可以捕捉到它。
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