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https://issues.apache.org/struts/browse/WW-1969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_41476
]
Maxx commented on WW-1969:
--------------------------
Hello!
I'm having the same problem with an application only using form-based
authentication through web.xml
(like:
<login-config>
<auth-method>FORM</auth-method>
<form-login-config>
<form-login-page>/pages/login.jsp</form-login-page>
<form-error-page>/pages/login.jsp</form-error-page>
</form-login-config>
</login-config>
)
It's impossible to use simple s:text, s:a or s:url tags in that page
(/pages/login.jsp) because I got that annoying "NullPointerException"...
And the application is not big enough to develop some complicated filter
schemes.
Some work-arounds? (except not using Struts tags...)
Regards,
Maxx
> Error in TagUtils (NullPointerException) when viewing a page which didn't go
> through Struts 2 interceptor stack
> ---------------------------------------------------------------------------------------------------------------
>
> Key: WW-1969
> URL: https://issues.apache.org/struts/browse/WW-1969
> Project: Struts 2
> Issue Type: Bug
> Components: Views
> Affects Versions: 2.0.6
> Environment: Tomcat 4.1
> Java 1.4
> Struts 2 - Java 1.4 retrotranslated version
> Reporter: Cyril Gambis
> Priority: Critical
>
> I searched for that item and havn't find anything in JIRA. I think there may
> be a patch because it is quite a serious issue and it is a regression from
> Struts 2.0.5 as I read on some forum.
> With this bug, some HelloWorld tutorials don't work anymore.
> The stack trace is:
> Stacktrace:
> org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrappe
> r.java:467)
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:389)
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> root cause
> 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.WebContent.index_jsp._jspx_meth_s_005fhead_005f0(index_jsp.java:
> 155)
> org.apache.jsp.WebContent.index_jsp._jspService(index_jsp.java:77)
> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> I understand that if you access directly a jsp page containing a tag like
> s:text, s:a or s:url, which usually won't need for a value stack. A solution
> may be to have everything go through the struts 2 interceptor stack, but
> believe me, for legacy application it is sometimes not easy at all (one of my
> developer has work on this problem for 2 days, currently).
> Is there any patch, anywhere? Especially for the Java 1.4 version or Struts 2?
> Some links:
> http://forums.opensymphony.com/thread.jspa?messageID=155149𥸍
> http://www.mail-archive.com/[EMAIL PROTECTED]/msg57582.html
> Thanks!
> Cyril Gambis
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