RFR: 8304290: Some JNI calls made without checking exceptions in media [v3]

[Ambarish Rapte]

On Tue, 6 Jun 2023 23:27:19 GMT, Alexander Matveev <almatvee at openjdk.org> wrote:

>> - Added missing exception checks for JNI calls.
>>  - Improved JNI error checking by checking for both exception and return value.
>>  - Minor code clean up.
>
> Alexander Matveev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8304290: Some JNI calls made without checking exceptions in media [v3]

Marked as reviewed by arapte (Reviewer).

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PR Review: https://git.openjdk.org/jfx/pull/1094#pullrequestreview-1486165243