Us we have only <s:text/> elements.
Prviously, with webwork, those tags were not problematic and we were
also applying the decorator manually.
James Mitchell wrote:
I was getting the same error when trying to use a form (<s:form ... >)
in a jsp without first going through an action in my app.
Actually....I just fired up tomcat with the mailreader deployed.
Going directly to the welcome jsp:
http://localhost:8080/struts2-mailreader/Welcome.jsp
java.lang.NullPointerException
org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:58)
org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:54)
org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:49)
org.apache.jsp.Welcome_jsp._jspx_meth_s_text_0(Welcome_jsp.java:178)
...
...
I don't know if this is unique for Struts 2.0.6, but I can confirm
that this happens in my app and in the mailreader.
--
James Mitchell
On Mar 28, 2007, at 3:18 PM, Pascal Lalonde wrote:
Hi,
We are currently trying to update from webwork to struts 2.0.6,
everything looks fine except one thing.
The application is deployed into JBoss 4.0.4 and JAAS is enabled into
our web.xml configuration file. So when trying to access the secure
namespace, it does its check and finds out that the user is not
logged yet so its redirecting to our configured JSP, into this JSP,
we have struts tags and we are applying a decorator.
With Webwork, it was working perfectly, but now, in Struts 2.0.6 we
have the following stack.
Anyone knows what we are doing wrong ?
java.lang.NullPointerException
at
org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:58)
at
org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:54)
at
org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:49)
at
org.apache.jsp.WEB_002dINF.pages.security.LoginForm_jsp._jspx_meth_ww_text_0(LoginForm_jsp.java:273)
at
org.apache.jsp.WEB_002dINF.pages.security.LoginForm_jsp._jspx_meth_page_applyDecorator_0(LoginForm_jsp.java:105)
at
org.apache.jsp.WEB_002dINF.pages.security.LoginForm_jsp._jspService(LoginForm_jsp.java:69)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at
org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:315)
at
org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:243)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
15:01:08,937 WARN [FormAuthenticator] Unexpected error forwarding to
login page
org.apache.jasper.JasperException: Exception in JSP:
/WEB-INF/pages/security/LoginForm.jsp:8
5: <html>
6: <head>
7: <title>
8: <ww:text name="global.title.login"/>
9: </title>
10: </head>
11: <body>
Stacktrace:
at
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at
org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:315)
at
org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:243)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
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