git: openjdk/jdk17u-dev: 8313874: JNI NewWeakGlobalRef throws exception for null arg

[Paul Hohensee]

Changeset: c91fb3f7
Author:    Oli Gillespie <ogillespie at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2023-08-29 15:08:37 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/c91fb3f7a51461e24fee53187543333b1455accb

8313874: JNI NewWeakGlobalRef throws exception for null arg

Reviewed-by: phh
Backport-of: 028b3ae1b162bd8f7c340bfa6e9487ca83697955

! src/hotspot/share/prims/jni.cpp
! test/hotspot/jtreg/runtime/jni/ReturnJNIWeak/ReturnJNIWeak.java