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I'm seeing this error and followed work around but it is not working as expected and still seeing the same error.
Any suggestions other than upgrade to ZK 8.5 version? My current version is ZK 8.0. Please help.
Please follow the workaround mentioned at https://tracker.zkoss.org/browse/ZK-4510
Several people already solved the problem with that workaround, so I suppose it should work. Could you tell us more details about how you apply the workaround in your environment? e.g. server version, file path... (I have grant to the permission to upload screentshots)
Hi Hawk,
We are seeing this issue again with Tomcat versions 9.0.46 and 9.0.69.
I have tried to add META-INF/services/javax.el.ExpressionFactory with content of "org.zkoss.zel.impl.ExpressionFactoryImpl" but still issue is not fixed.
I have placed "juel-impl-2.2.7.jar" in WEB-INF/lib folder and unable to resolve issue.
Followed below 2 links but no luck yet. https://tracker.zkoss.org/browse/ZK-4510 https://tracker.zkoss.org/browse/ZK-3642
Can you please help on this?
Thanks, Swarupa
According to ZK-4510, that bug happens since tomcat 9.0.31. Based on what you describe, it's hard to know the root cause.
Could you upgrade to ZK 8.5 or later?
You can download zel.jar source and set a breakpoint at this line: https://github.com/zkoss/zk/blob/v8.0.5/zel/src/org/zkoss/zel/ExpressionFactory.java#L418 to see what ZK reads from your javax.el.ExpressionFactory.
Asked: 2022-02-14 22:11:27 +0800
Seen: 16 times
Last updated: Feb 01
