Integrated: 8265484: Fix up TRAPS usage in GenerateOopMap::compute_map and callers

[David Holmes]

On Mon, 19 Apr 2021 21:38:29 GMT, David Holmes <dholmes at openjdk.org> wrote:

> If compute_map encounters malformed bytecode, or an OOM condition then it can raise a LinkageError to be thrown in regular JavaThreads, and this is reflected in the use of TRAPS in a couple of methods. But for non-JavaThreads, and compiler threads, the occurrence of such an error is treated as a fatal error and we abort the VM.
> 
> In addition, most of the callers of compute_map actually use the CATCH macro, which just clears the exception and will abort a non-product VM.
> 
> This use of TRAPS is a problem for the change to convert TRAPS to JavaThread, because these methods are called by non-JavaThreads. To address this we change compute_map to create, but not throw, the exception and return a bool indicating whether an error occurred, and the caller can then choose to throw the exception itself. 
> 
> Testing: tiers 1-3
> 
> Thanks,
> David

This pull request has now been integrated.

Changeset: 13d32633
Author:    David Holmes <dholmes at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/13d32633
Stats:     44 lines in 4 files changed: 16 ins; 11 del; 17 mod

8265484: Fix up TRAPS usage in GenerateOopMap::compute_map and callers

Reviewed-by: iklam, dlong, coleenp

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PR: https://git.openjdk.java.net/jdk/pull/3580