RFR: 8336382: Fixes error reporting in loading AWT and fonts [v10]

[Alexey Ivanov]

On Wed, 24 Jul 2024 12:45:46 GMT, Karm Michal Babacek <duke at openjdk.org> wrote:

>> src/java.desktop/unix/native/libawt/awt/awt_LoadLibrary.c line 83:
>> 
>>> 81:                                                      headlessFn);
>>> 82:         // If an exception occurred, we assume headless mode.
>>> 83:         if ((*env)->ExceptionCheck(env)) {
>> 
>> I don't like this at all.
>
> See [comment](https://github.com/openjdk/jdk/pull/20169#issuecomment-2247823182), please.

Here, nothing has changed… except for the added comment which states what's done: if an exception occurred while calling `GraphicsEnvironment.isHeadless`, the `AWTIsHeadless` function returns `JNI_TRUE`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20169#discussion_r1922852985