cannot access class com.apple.eawt.Application because module java.desktop does not export com.apple.eawt to module jgaf

Question

cannot access class com.apple.eawt.Application because module java.desktop does not export com.apple.eawt to module jgaf

Closed this issue 4 years ago · 5 comments

Hi,

Got this exception on macosx catalina with jdk 11.
Seems not being able to load EAWT as it is not exported anymore.

using jGAF version 2.3,

Am i doing something wrong ?

Mar. 25, 2020 7:54:51 P.M. com.plealog.genericapp.api.log.EZLogger warn
WARNING: jgaf@2.3.0/com.plealog.genericapp.ui.apple.OSXAdapter.setHandler(Unknown Source): Mac OS X Adapter could not talk to EAWT:java.lang.IllegalAccessException: class com.plealog.genericapp.ui.apple.OSXAdapter (in module jgaf) cannot access class com.apple.eawt.Application (in module java.desktop) because module java.desktop does not export com.apple.eawt to module jgaf
Mar. 25, 2020 7:54:51 P.M. com.plealog.genericapp.api.log.EZLogger warn
WARNING: jgaf@2.3.0/com.plealog.genericapp.ui.apple.OSXAdapter.setHandler(Unknown Source): Mac OS X Adapter could not talk to EAWT:java.lang.IllegalAccessException: class com.plealog.genericapp.ui.apple.OSXAdapter (in module jgaf) cannot access class com.apple.eawt.Application (in module java.desktop) because module java.desktop does not export com.apple.eawt to module jgaf
Mar. 25, 2020 7:54:51 P.M. com.plealog.genericapp.api.log.EZLogger warn
WARNING: jgaf@2.3.0/com.plealog.genericapp.ui.apple.OSXAdapter.setAboutHandler(Unknown Source): OSXAdapter could not access the About Menu
Mar. 25, 2020 7:54:51 P.M. com.plealog.genericapp.api.log.EZLogger warn
WARNING: jgaf@2.3.0/com.plealog.genericapp.ui.apple.OSXAdapter.setHandler(Unknown Source): Mac OS X Adapter could not talk to EAWT:java.lang.IllegalAccessException: class com.plealog.genericapp.ui.apple.OSXAdapter (in module jgaf) cannot access class com.apple.eawt.Application (in module java.desktop) because module java.desktop does not export com.apple.eawt to module jgaf
Mar. 25, 2020 7:54:51 P.M. com.plealog.genericapp.api.log.EZLogger warn
WARNING: jgaf@2.3.0/com.plealog.genericapp.ui.apple.OSXAdapter.setPreferencesHandler(Unknown Source): OSXAdapter could not access the About Menu
Exception in thread "main" java.lang.NullPointerException
at jgaf@2.3.0/com.plealog.genericapp.api.EZGenericApplication.initialize(Unknown Source)
at cptorderflow/com.cpt.orderflow.ui.OrderFlowApp.main(OrderFlowApp.java:140)

Answer 1 · 2020-03-27T14:23:22.000Z

Hi,
I did not test jGAF with JRE 9 or above, yet... so I do not know if there is a change somewhere in the JDK regarding the use OSXAdapter class.
Considering the stack trace you've reported: "com.apple.eawt.Application" seems to be not reachable anymore in JDK 11.

Answer 2 · 2020-03-27T15:48:09.000Z

Hi,
Thanks for your answer. I did a little digging on my side and it appears apple has decommissioned eawt.
Strangely it is still part of jdk 11 and can be made accessible to your project in eclipse in buildpath setup:
I still need to test it. I'll keep you posted.

Answer 3 · 2020-03-29T11:04:12.000Z

Hi,

I've found an interesting article on Oracle's JDK 12 :

https://docs.oracle.com/en/java/javase/12/migrate/index.html

see section "Removed macOS-Specific Features".

A versy interesting information is : "The APIs in the com.apple.eawt and com.apple.eio packages are encapsulated, so you won’t be able to compile against them in JDK 9 or later releases. However, they remain accessible at runtime, so existing code that is compiled to old versions continues to run. "

Now, I have to review all of these and figure out how I can migrate jGAF to more recent JDK, still maintaining compatibility with JDK 8, because I have production systems still working with that release of Java. ANy help in doing that update of jGAF would be greatly appreciated.

Patrick

Answer 4 · 2020-03-29T22:26:07.000Z

Hi Patrick, Would be happy to help but I have a few things to figure out first: I guess the question for me now is: now that we have preference api, desktop, taskbar, etc as part of JDK do I still need a framework for the application? And if the answer is yes, should I look into the netbeans framework ( I am well aware of the jump in the level of complexity compared to jGAF) I would be curious to know what you think and what your experience is. Why did you choose to build your own framework instead of leveraging netbeans ? Benoit

…

On Sun, Mar 29, 2020 at 7:04 AM Patrick Durand ***@***.***> wrote: Hi, I've found an interesting article on Oracle's JDK 12 : https://docs.oracle.com/en/java/javase/12/migrate/index.html see section "Removed macOS-Specific Features". A versy interesting information is : "The APIs in the com.apple.eawt and com.apple.eio packages are encapsulated, so you won’t be able to compile against them in JDK 9 or later releases. However, they remain accessible at runtime, so existing code that is compiled to old versions continues to run. " Now, I have to review all of these and figure out how I can migrate jGAF to more recent JDK, still maintaining compatibility with JDK 8, because I have production systems still working with that release of Java. ANy help in doing that update of jGAF would be greatly appreciated. Patrick — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHMAZHHCKUP3Z7RFD6NTDQ3RJ4TLRANCNFSM4LT2YHPQ> .

Answer 5 · 2020-07-27T18:13:32.000Z

Issue fixed with jGAF 2.4.0 release.