Hi All- it was resolved, had to change to <form> from <s:form>.
*Thanks & Regards* *Santu Dhua* On Thu, Oct 3, 2024 at 2:06 AM Santu Dhua <santud...@gmail.com> wrote: > Hi Lukasz- we are migrating from Struts 6.0.0(with jdk1.8) to Struts > 6.6.0(with jdk21). > Yes, the issue is occurring for a <s:textfield> element, which is inside a > form <s:form>. > First time the page is opening perfectly, then I go to next page, and try > to come back by a custom back button( via JS that button modifies > window.location.href to the previous page JSP name) and there it fails with > the exception. In Struts 6.0.0 with jdk 1.8, this functionality is working > fine. > > > *Thanks & Regards* > *Santu Dhua* > > > On Thu, Oct 3, 2024 at 1:31 AM Lukasz Lenart <lukaszlen...@apache.org> > wrote: > >> czw., 3 paź 2024 o 05:41 Santu Dhua <santud...@gmail.com> 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 >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org >> For additional commands, e-mail: user-h...@struts.apache.org >> >>
