I have also tried using Tomcat 11, but I’m still facing the same issue.
Could you please provide a sample code migrated to Jakarta?

On Thu, 17 Apr, 2025, 6:25 pm M Huzaifah, <mhuzaifah.i...@gmail.com> wrote:

> Hii Shakar,
>
> Could you please try to use tomcat 11.
>
> I faced issue about file upload using tomcat 11.
>
> Regards
>
> On Thu, Apr 17, 2025, 2:06 PM shankar sawate <sawateshankar...@gmail.com>
> wrote:
>
> > Hi Team,
> >
> >   If you have any sample code related to Jakarta migration, please share
> it
> > with me — it would be really helpful.
> >
> > On Thu, Apr 17, 2025 at 12:30 PM shankar sawate <
> > sawateshankar...@gmail.com>
> > wrote:
> >
> > >   And I face this issue after deploying.
> > >
> > > 17-Apr-2025 12:28:09.568 SEVERE [http-nio-8083-exec-1]
> > > org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service()
> > for
> > > servlet [jsp] in context with path [/jakartaDemo_war_exploded] threw
> > > exception [java.lang.NullPointerException: Cannot invoke
> > > "org.apache.struts2.ActionInvocation.getProxy()" because "invocation"
> is
> > > null] with root cause
> > > java.lang.NullPointerException: Cannot invoke
> > > "org.apache.struts2.ActionInvocation.getProxy()" because "invocation"
> is
> > > null
> > > at
> > org.apache.struts2.components.Component.getNamespace(Component.java:448)
> > > at
> > >
> >
> org.apache.struts2.components.Component.determineNamespace(Component.java:433)
> > > at
> > >
> >
> org.apache.struts2.components.ServletUrlRenderer.renderFormUrl(ServletUrlRenderer.java:141)
> > > at
> > >
> org.apache.struts2.components.Form.populateComponentHtmlId(Form.java:232)
> > > at org.apache.struts2.components.UIBean.evaluateParams(UIBean.java:797)
> > > at org.apache.struts2.components.UIBean.end(UIBean.java:551)
> > > at
> > >
> >
> org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:36)
> > > at
> > org.apache.jsp.index_jsp._jspx_meth_s_005fform_005f0(index_jsp.java:192)
> > > at org.apache.jsp.index_jsp._jspService(index_jsp.java:141)
> > > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> > > at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
> > > at
> > >
> >
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:456)
> > > at
> > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380)
> > > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328)
> > > at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:206)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:150)
> > > at
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:175)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:150)
> > > at
> > >
> >
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.handleRequest(StrutsPrepareAndExecuteFilter.java:151)
> > > at
> > >
> >
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.tryHandleRequest(StrutsPrepareAndExecuteFilter.java:137)
> > > at
> > >
> >
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:125)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:175)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:150)
> > > at
> > >
> >
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
> > > at
> > >
> >
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
> > > at
> > >
> >
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
> > > at
> > >
> >
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
> > > at
> > >
> >
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
> > > at
> > >
> >
> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:673)
> > > at
> > >
> >
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
> > > at
> > >
> >
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344)
> > > at
> > >
> >
> org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391)
> > > at
> > >
> >
> org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
> > > at
> > >
> >
> org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896)
> > > at
> > > org.apache.tomcat.util.net
> > .NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1736)
> > > at
> > > org.apache.tomcat.util.net
> > .SocketProcessorBase.run(SocketProcessorBase.java:52)
> > > at
> > >
> >
> org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
> > > at
> > >
> >
> org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
> > > at
> > >
> >
> org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
> > > at java.base/java.lang.Thread.run(Thread.java:1583)
> > > 17-Apr-2025 12:28:09.854 SEVERE [http-nio-8083-exec-4]
> > > org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service()
> > for
> > > servlet [jsp] in context with path [/jakartaDemo_war_exploded] threw
> > > exception [java.lang.NullPointerException: Cannot invoke
> > > "org.apache.struts2.ActionInvocation.getProxy()" because "invocation"
> is
> > > null] with root cause
> > > java.lang.NullPointerException: Cannot invoke
> > > "org.apache.struts2.ActionInvocation.getProxy()" because "invocation"
> is
> > > null
> > > at
> > org.apache.struts2.components.Component.getNamespace(Component.java:448)
> > > at
> > >
> >
> org.apache.struts2.components.Component.determineNamespace(Component.java:433)
> > > at
> > >
> >
> org.apache.struts2.components.ServletUrlRenderer.renderFormUrl(ServletUrlRenderer.java:141)
> > > at
> > >
> org.apache.struts2.components.Form.populateComponentHtmlId(Form.java:232)
> > > at org.apache.struts2.components.UIBean.evaluateParams(UIBean.java:797)
> > > at org.apache.struts2.components.UIBean.end(UIBean.java:551)
> > > at
> > >
> >
> org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:36)
> > > at
> > org.apache.jsp.index_jsp._jspx_meth_s_005fform_005f0(index_jsp.java:192)
> > > at org.apache.jsp.index_jsp._jspService(index_jsp.java:141)
> > > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> > > at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
> > > at
> > >
> >
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:456)
> > > at
> > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380)
> > > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328)
> > > at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:206)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:150)
> > > at
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:175)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:150)
> > > at
> > >
> >
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.handleRequest(StrutsPrepareAndExecuteFilter.java:151)
> > > at
> > >
> >
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.tryHandleRequest(StrutsPrepareAndExecuteFilter.java:137)
> > > at
> > >
> >
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:125)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:175)
> > > at
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:150)
> > > at
> > >
> >
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
> > > at
> > >
> >
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
> > > at
> > >
> >
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
> > > at
> > >
> >
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
> > > at
> > >
> >
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
> > > at
> > >
> >
> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:673)
> > > at
> > >
> >
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
> > > at
> > >
> >
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344)
> > > at
> > >
> >
> org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391)
> > > at
> > >
> >
> org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
> > > at
> > >
> >
> org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896)
> > > at
> > > org.apache.tomcat.util.net
> > .NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1736)
> > > at
> > > org.apache.tomcat.util.net
> > .SocketProcessorBase.run(SocketProcessorBase.java:52)
> > > at
> > >
> >
> org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
> > > at
> > >
> >
> org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
> > > at
> > >
> >
> org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
> > > at java.base/java.lang.Thread.run(Thread.java:1583)
> > >
> > > On Thu, Apr 17, 2025 at 12:04 PM shankar sawate <
> > > sawateshankar...@gmail.com> wrote:
> > >
> > >> Thank you for your response.
> > >>
> > >> I'm using NetBeans 17 as the IDE, with Java 21, and running the
> > >> application on Tomcat 10.0.20.
> > >> The issue occurs when I try to run the web application from within the
> > >> IDE.
> > >>
> > >> NetBeans shows the following error when the issue occurs:
> > >>
> > >> The s:form tag declares that it accepts dynamic attributes but does
> not
> > >> implement the required interface
> > >>
> > >> <%@page contentType="text/html" pageEncoding="UTF-8"%>
> > >> <%@ taglib prefix="s" uri="/struts-tags" %>
> > >> <!DOCTYPE html>
> > >> <html>
> > >>     <head>
> > >>         <meta http-equiv="Content-Type" content="text/html;
> > >> charset=UTF-8">
> > >>         <title>JSP Page</title>
> > >>     </head>
> > >>     <body>
> > >>         <h1>Hello World!</h1>
> > >>         <s:form>       <!-- The s:form tag declares that it accepts
> > >> dynamic attributes but does not implement the required interface -->
> > >>             <s:textfield name="name" value="Enter U name"/>
> > >>             <s:submit name="submit" value="Add"
> > action="index"></s:submit>
> > >>         </s:form>
> > >>     </body>
> > >> </html>
> > >>
> > >> On Thu, Apr 17, 2025 at 10:59 AM Lukasz Lenart <
> lukaszlen...@apache.org
> > >
> > >> wrote:
> > >>
> > >>> wt., 15 kwi 2025 o 09:57 shankar sawate <sawateshankar...@gmail.com>
> > >>> napisał(a):
> > >>> > While migrating to Struts 7.0.0, I'm encountering an issue when
> using
> > >>> the
> > >>> > <s:form> tag. Even though the tag is present like this
> > >>> >
> > >>> > jsp
> > >>> > <%--<s:form></s:form>--%>
> > >>> > I’m getting the following warning or error:
> > >>> >
> > >>> > The s:form tag declares that it accepts dynamic attributes but does
> > not
> > >>> > implement the required interface
> > >>>
> > >>> It would be good to provide more details, when does it happen? What
> > >>> Java version do you use? Is this in an IDE or when running a webapp
> in
> > >>> a container?
> > >>>
> > >>> There are a bunch of examples which are working just fine, so I
> assume
> > >>> it's something wrong with your setup.
> > >>> https://github.com/apache/struts-examples/
> > >>>
> > >>>
> > >>> Cheers
> > >>> Łukasz
> > >>>
> > >>> ---------------------------------------------------------------------
> > >>> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
> > >>> For additional commands, e-mail: user-h...@struts.apache.org
> > >>>
> > >>>
> >
>

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