Practical use of java.lang.Error

Question

Hi All,
I would like to know if we can use java.lang.Error -- the sibling of java.lang.Exception -- in our programme. If yes, how and for what practical purposes and if no, then what is the use of this class?
Thanks,
Abbas

Answer 1

You would never normally subclass Error, nor catch
and deal with such exceptions. I would disagree with this. If your application is
improperly configured, use an Error. Provide very top
level code to catch your specific Error (and perhaps
others) so the user (and most likely the maintainers)
can be properly notified, though note that you most
likely will not be able to recover fully.I would say that should be an unchecked RuntimeException at best, but still not an "Error".
>
They are thrown by the
VM when something "bad" happens such as runningout
of memory.Unfortunately, they are not only thrown by the VM:
CoderMalfunctionError
FactoryConfigurationError
TransformerFactoryConfigurationErrorI don't know what those Errors are (I know I could spend the time looking them up) but I bet they are standard java or javax - packaged errors, and the standard java or javax - packaged classes throw them right? If so, that is still what I mean by "throw by the VM".