RFR: JDK-8317920: JDWP-agent sends broken exception event with onthrow option [v2]

[Johannes Bechberger]

On Mon, 16 Oct 2023 18:16:59 GMT, Johannes Bechberger <jbechberger at openjdk.org> wrote:

>> `ex.catchLocation())` and `ex.thread().frame(0).location()` are valid.
>
> The problem is that the properties of the `ex.location()` are broken:
> 
> ``
>     LocationImpl(VirtualMachine vm, 
>                  ReferenceTypeImpl declaringType, // -> Ex
>                  long methodRef, // -> main method where it has been caught 
>                  long codeIndex // -> index in main method
>     ) {
> 
> 
> Resolving is therefore not possible. I'm on it.

Fixed it and added the check.

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PR Review Comment: https://git.openjdk.org/jdk/pull/16145#discussion_r1361152808