RFR: 8326915: NPE when a validating parser is restricted

[Lance Andersen]

On Thu, 29 Feb 2024 21:00:09 GMT, Joe Wang <joehw at openjdk.org> wrote:

> Fix a NPE when a validating parser is restricted by the JDKCatalog resolve property. Also slightly improved the error msg with the catalog name.
> 
> Test: new test added
>          existing test CatalogSupport5 would fail without the Null check on ErrorReporter. It's a separate issue not covered by this fix.

Marked as reviewed by lancea (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18071#pullrequestreview-1910945957