RFR: 8375370: XRBackendNative.c reported variable uninitialized by clang23 [v2]

[Phil Race]

On Fri, 16 Jan 2026 03:15:19 GMT, SendaoYan <syan at openjdk.org> wrote:

>> Hi all,
>> 
>> The local variable `pict_attr` in function `JNIEXPORT jint JNICALL Java_sun_java2d_xr_XRBackendNative_createPictureNative  (JNIEnv *env, jclass cls, jint drawable, jlong formatPtr)` reported variable uninitialized by clang23. This PR initial all the fields of`pict_attr` to zero which will avoid compiler warning by clang23.
>
> SendaoYan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Initial all the fields of pict_attr to zero

Marked as reviewed by prr (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/29248#pullrequestreview-3672030718