Exceptions thrown when linking sig-poly methods and indy

John Rose john.r.rose at oracle.com
Wed Aug 24 22:20:19 UTC 2016

On Aug 24, 2016, at 3:02 PM, David Holmes <david.holmes at oracle.com> wrote:
> There is a long history of problems in this area - see Class.newInstance for example (which can throw undeclared checked exceptions!). Unfortunately for public API's the ship has sailed and we really can't do anything to change the existing behaviour.

That's true for checked exceptions.  For unchecked errors, at least some of them,
the implementation has always had the right to move them around.
It would be reasonable, for example, for an implementation to vary in its choice
to wrap, or not to wrap, a stack overflow error, or out of memory error,
or thread-death, when passing through Method.invoke.  That's what
we are talking about.

That said, a very old API like jli.Method::invoke is going to have a lot
of folks placing a lot of unstated expectations on it.  But a relatively
new one like invokedynamic, which does not yet have a wide range
of use cases, can be changed without breaking many bits of code.

— John

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