RFR: JDK-8276809: java/awt/font/JNICheck/FreeTypeScalerJNICheck.java shows JNI warning on Windows

[Christoph Langer]

On Tue, 9 Nov 2021 07:57:55 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> The new test java/awt/font/JNICheck/FreeTypeScalerJNICheck.java introduced with https://bugs.openjdk.java.net/browse/JDK-8269223 adds -Xcheck:jni to an awt related test, and shows on Windows server 2019 the following JNI warning , so the test  JNICheck/FreeTypeScalerJNICheck.java fails on this Windows version.
> 
> :stdErr:
> Thu Oct 28 01:27:10 CEST 2021
> stdout: [WARNING in native method: JNI call made without checking exceptions when required to from CallStaticVoidMethodV
>                at sun.awt.Win32GraphicsEnvironment.initDisplay(java.desktop at 18.0.0.1-internal/Native Method)
>                at sun.awt.Win32GraphicsEnvironment.initDisplayWrapper(java.desktop at 18.0.0.1-internal/Win32GraphicsEnvironment.java:95)
>                at sun.awt.Win32GraphicsEnvironment.<clinit>(java.desktop at 18.0.0.1-internal/Win32GraphicsEnvironment.java:63)
>                at sun.awt.PlatformGraphicsInfo.createGE(java.desktop at 18.0.0.1-internal/PlatformGraphicsInfo.java:34)
>                at java.awt.GraphicsEnvironment$LocalGE.createGE(java.desktop at 18.0.0.1-internal/GraphicsEnvironment.java:93)
>                at java.awt.GraphicsEnvironment$LocalGE.<clinit>(java.desktop at 18.0.0.1-internal/GraphicsEnvironment.java:84)
>                at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(java.desktop at 18.0.0.1-internal/GraphicsEnvironment.java:106)
>                at FreeTypeScalerJNICheck.runTest(FreeTypeScalerJNICheck.java:53)
>                at FreeTypeScalerJNICheck.main(FreeTypeScalerJNICheck.java:44)
> 
> We can get rid of the warning by adjusting a JNU_CallStaticMethodByName call in awt_Win32GraphicsEnv.cpp .

LGTM

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Marked as reviewed by clanger (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/6306