Re: Help needed for Struts 6.6.0 tagnames in UIBean.java

czw., 3 paź 2024 o 05:41 Santu Dhua <[email protected]> napisał(a):
> Need expert opinion: I am using Struts 6.6.0.  While clicking a back button
> in my application, I am getting below exception in UIBean.java. I have
> added all dependencies needed for Struts 6.6.0, as mentioned in release
> version notes. Can anyone help to understand what could cause this.? The
> page works when first time load, then from next page if I come back, I am
> getting below exception:

From which version have you migrated to Struts 6.6.0?

> Caused by: java.lang.NullPointerException: Cannot invoke
> "java.util.List.add(Object)" because "tags" is null
> at org.apache.struts2.components.UIBean.evaluateParams(UIBean.java:804)
> ~[struts2-core-6.6.0.jar:6.6.0]

This code hasn't changed since Struts 2.3.x, it must be something
else. Do you use this tag inside <s:form/>?


Regards
-- 
Łukasz