Nested exceptions in SAX

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The following bug has been reported against JAXP:

  SAXException can take a nested exception, but it doesn't implement
  the getCause method, so it doesn't participate in the exception
  nesting mechanism introduced in JDK 1.4.

  Because of this, when one prints out "e.printStackTrace()", it
  doesn't show exceptions nested inside SAXException.

the proposed fix for this is simply to add

public Throwable getCause() {
  return exception;
}

to org.xml.sax.SAXException.

I don't believe that this introduces any compatibility problems
(getCause() is already inherited from Throwable).

That said, as the spec lead for JAXP, I'm very reluctant to introduce
changes into the endorsed API no matter how small without community
support.

What say you?

                                        Be seeing you,
                                          norm

=2D-=20
Norman Walsh <[email protected]> | A life, admirable at first sight, may
http://nwalsh.com/            | have cost so much in imposed
                              | liabilities, chores and self-abasement,
                              | that, brilliant though it appears, it
                              | cannot be considered other than a
                              | failure. Another, which seems to have
                              | misfired, is in reality a triumphant
                              | success, because it has cost so
                              | little.--Henry De Montherlant

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