O365Interactive access does not work on latest Ubuntu with OpenJDK 21

[miklcct]

Exception in thread "AWT-EventQueue-0" java.lang.IllegalAccessError: superclass access check failed: class davmail.exchange.auth.O365InteractiveAuthenticatorFrame$2 (in unnamed module @0x5b8bc155) cannot access class sun.net.www.protocol.https.Handler (in module java.base) because module java.base does not export sun.net.www.protocol.https to unnamed module @0x5b8bc155
        at java.base/java.lang.ClassLoader.defineClass1(Native Method)
        at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027)
        at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
        at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862)
        at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
        at davmail.exchange.auth.O365InteractiveAuthenticator.lambda$authenticate$0(O365InteractiveAuthenticator.java:150)
        at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
        at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773)
        at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
        at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
        at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
        at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
        at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
        at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
        at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
        at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
        at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
        at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

It works with OpenJDK 11 but not 17 or 21.

[esabol]

@miklcct : I think this is a duplicate of issue #344. Read that issue for details, but one thing you can try is adding --add-exports java.base/sun.net.www.protocol.https=ALL-UNNAMED to the java command in the script used to start DavMail or use the "azul" argument to DavMail to download and use the Azul JDK. Make sure you're using the latest release of DavMail.

[mguessan]

With JDK 17 and 21 you need to have OpenJFX installed in addition to basic JDK.

I recently (last april) added the following code do davmail launch script:

  elif [ -e "/usr/share/openjfx" ]; then
    # matches Kubuntu
    echo "Enable OpenJFX"
    JAVA_OPTS="$JAVA_OPTS --add-exports java.base/sun.net.www.protocol.https=ALL-UNNAMED"

Do you have openjfx available in /usr/share/openjfx?