Problem with opening 2FA window with Zulu JDK 17

[atelszewski]

Hi,

I'm trying to run DavMail 6.2.1-3496 with Zulu JDK17.

• I downloaded DavMail from here, version 6.2.1.
• I downloaded JDK 17 from here, version 17.0.10+7.
• I downloaded JavaFX from here, version 17.0.10.

It works ok for an account that does not require 2FA.

But, when an account requires 2FA, and the authentication window is about to be opened, I receive the following error:

Exception in thread "AWT-EventQueue-0" java.lang.IllegalAccessError: superclass access check failed: class davmail.exchange.auth.O365InteractiveAuthenticatorFrame$2 (in unnamed module @0x67655b67) cannot access class sun.net.www.protocol.https.Handler (in module java.base) because module java.base does not export sun.net.www.protocol.https to unnamed module @0x67655b67
        at java.base/java.lang.ClassLoader.defineClass1(Native Method)
        at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
        at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
        at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862)
        at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
        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$4.run(EventQueue.java:714)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
        at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
        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)

Could you please assist?

-- Best regards, Andrzej Telszewski

[atelszewski]

Tried with Oracle JDK 17 from here and the issue is the same.

[atelszewski]

And now tried with Zulu JDK 11 version 11.0.21 and it worked.

I got a warning WARNING: Unsupported JavaFX configuration: classes were loaded from 'unnamed module @965f73c', but I was still able to successfully authenticate.

What is the best suited combination of versions of JDK and JFX to run DavMail?

[mguessan]

Missing option in launch script for recent JDKs:

--add-exports java.base/sun.net.www.protocol.https=ALL-UNNAMED

Already fixed in trunk/master, see: https://github.com/mguessan/davmail/blob/master/src/bin/davmail

[atelszewski]

Hi,

that did the trick, JDK17 now works! :-)

I still receive WARNING: Unsupported JavaFX configuration: classes were loaded from 'unnamed module @3a0af711', but the 2FA page loads and I can authenticate.

Thanks for the support! :-)

-- Best regards, Andrzej Telszewski