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Using Struts 1.0, why do I get the error "cant remove Attributes from request scope"?

Created May 7, 2012

Anton Nazarov

Full error:
When I click the Register with the MailReader Demonstration Application in index.jsp I get the error (shown below).

Error: 500

Location: /struts-example/logon.jsp

Internal Servlet Error:

javax.servlet.ServletException: cant remove Attributes from request scope
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:386)
at _0002flogon_0002ejsplogon_jsp_0._jspService(_0002flogon_0002ejsplogon_jsp_0.java:393)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:126)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java:174)
at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:261)
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java:369)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java:503)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:559)
at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:160)
at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java:338)
at java.lang.Thread.run(Thread.java:479)
Root cause: 
java.lang.IllegalArgumentException: cant remove Attributes from request scope
at org.apache.jasper.runtime.PageContextImpl.removeAttribute(PageContextImpl.java:236)
at org.apache.struts.taglib.html.FormTag.doEndTag(FormTag.java:591)
at _0002flogon_0002ejsplogon_jsp_0._jspService(_0002flogon_0002ejsplogon_jsp_0.java:368)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:126)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java:174)
at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:261)
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java:369)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java:503)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:559)
at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:160)
at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java:338)
at java.lang.Thread.run(Thread.java:479)


This is a well-known problem in final-1.0-version of Struts. I corrected this by myself in Struts code. I can send renovated Struts for you (if you want).

Write me.
Anton