Throwing exceptions from within Struts tags

[Martin Cooper]

I noticed that there are two different ways in which exceptions are thrown
from within Struts tags. One way is like this:

    if (somethingBadHappened) {
        throw new JspException(messages.getMessage(...));
    }

and the other is like this:

    if (somethingBadHappened) {
        JspException e = new JspException(messages.getMessage(...));
        RequestUtils.saveException(pageContext, e);
        throw e;
    }

I'm guessing that the first is "the old way" and the second is "the new
way", and that I should use the latter when writing new code (and
potentially when updating existing code). Is this correct?

Also, is there a reason we throw JspException instead of JspTagException?

Thanks!

--
Martin Cooper



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