Enabling CI testing on JDK 25

[jtulach]

• Fixes build and test execution on JDK25. Eliminates problems of tests using Graal.js failing when running on JDK25
• Have to use two versions of Graal.js:
  • 21.3.x on JDKs older than 21
  • 25.0.3 on JDK21+
• done by separating the Graal.js dependency into testing project
• and having two profiles there

[jtulach]

• Graal.js version 21.3.0 isn't ready to run on JDK25

initializationError(net.java.html.sound.AudioClipTest):
java.lang.reflect.InvocationTargetException
Caused by: java.lang.NoSuchMethodError: 'void sun.misc.Unsafe.ensureClassInitialized(java.lang.Class)'

[neilcsmith-net]

@jtulach we just had a reach out from infra that a Jenkins job had been running for 15 days since this was merged. The previous job looks like it was much longer than normal too. Do we even need these Jenkins jobs for this any more? See https://ci-builds.apache.org/job/Netbeans/job/netbeans-html4j-windows/59/

[ebarboni]

The build is dumping every 10s after this failure.

Configuring TestNG with: TestNG652Configurator
Exception in thread "AWT-EventQueue-0" java.awt.HeadlessException: 
The application does not have desktop access,
but this program performed an operation which requires it.
	at java.desktop/java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:164)
	at java.desktop/java.awt.Window.<init>(Window.java:553)
	at java.desktop/java.awt.Frame.<init>(Frame.java:428)
	at java.desktop/javax.swing.JFrame.<init>(JFrame.java:224)
	at org.netbeans.html.ko4j.DoubleViewTest.lambda$initializeSwingAndJavaFX$7(DoubleViewTest.java:145)```