[
http://www.stripesframework.org/jira/browse/STS-640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rudolf Ingerl updated STS-640:
------------------------------
Attachment: home.jsp
Place in: \WEB-INF\jsp\secure\
> Relative path for layout-render tag's name attrib causes exception
> ------------------------------------------------------------------
>
> Key: STS-640
> URL: http://www.stripesframework.org/jira/browse/STS-640
> Project: Stripes
> Issue Type: Bug
> Components: Tag Library
> Affects Versions: Release 1.5
> Environment: Stripes 1.5, JDK1.5.0_13, Tomcat 6.0, Eclipse 3.4.1
> Reporter: Rudolf Ingerl
> Attachments: defaultlayout.jsp, home.jsp
>
>
> There seems to be a problem in the layout-render taglib wrt the use of
> relative paths.
> I have found 1 other JIRA issue about this, but I don't think it described
> the issue properly. http://www.stripesframework.org/jira/browse/STS-591
> Also see relating issue on Nabble:
> http://www.nabble.com/Problem-with-NullPointerException-using-layouts-td20285899.html#a20285899
> Scenario 1:
> Example:
> <stripes:layout-render name="../layout/defaultlayout.jsp">
> ...........
> </stripes:layout-render>
> Causes an exception:
> SEVERE: Servlet.service() for servlet jsp threw exception
> java.lang.NullPointerException
> at
> net.sourceforge.stripes.tag.layout.LayoutDefinitionTag.doStartTag(LayoutDefinitionTag.java:72)
> at
> org.apache.jsp.WEB_002dINF.jsp.layout.defaultlayout_jsp._jspx_meth_stripes_005flayout_002ddefinition_005f0(defaultlayout_jsp.java:87)
> at
> org.apache.jsp.WEB_002dINF.jsp.layout.defaultlayout_jsp._jspService(defaultlayout_jsp.java:63)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> ...........
> 06:57:30,625 WARN DefaultExceptionHandler:90 - Unhandled exception caught by
> the Stripes default exception handler.
> org.apache.jasper.JasperException: javax.servlet.ServletException:
> net.sourceforge.stripes.exception.StripesJspException: An exception was
> raised while invoking a layout. The layout used was
> '../layout/defaultlayout.jsp'. The following information was supplied to the
> render tag: LayoutContext{component names=[contents], parameters={}}
> at
> org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> ...........
> Caused by: javax.servlet.ServletException:
> net.sourceforge.stripes.exception.StripesJspException: An exception was
> raised while invoking a layout. The layout used was
> '../layout/defaultlayout.jsp'. The following information was supplied to the
> render tag: LayoutContext{component names=[contents], parameters={}}
> at
> org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848)
> at
> org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
> at
> org.apache.jsp.WEB_002dINF.jsp.secure.home_jsp._jspService(home_jsp.java:71)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
> ... 69 more
> Caused by: org.apache.jasper.JasperException: java.lang.NullPointerException
> at
> org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> net.sourceforge.stripes.controller.DynamicMappingFilter.doFilter(DynamicMappingFilter.java:345)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
> at
> org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:535)
> at
> org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:472)
> at
> org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
> at
> org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:640)
> at
> org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:634)
> at
> net.sourceforge.stripes.tag.layout.LayoutRenderTag.doEndTag(LayoutRenderTag.java:113)
> at
> org.apache.jsp.WEB_002dINF.jsp.secure.home_jsp._jspx_meth_stripes_005flayout_002drender_005f0(home_jsp.java:110)
> at
> org.apache.jsp.WEB_002dINF.jsp.secure.home_jsp._jspService(home_jsp.java:62)
> ... 72 more
> Caused by: java.lang.NullPointerException
> at
> net.sourceforge.stripes.tag.layout.LayoutDefinitionTag.doStartTag(LayoutDefinitionTag.java:72)
> at
> org.apache.jsp.WEB_002dINF.jsp.layout.defaultlayout_jsp._jspx_meth_stripes_005flayout_002ddefinition_005f0(defaultlayout_jsp.java:87)
> at
> org.apache.jsp.WEB_002dINF.jsp.layout.defaultlayout_jsp._jspService(defaultlayout_jsp.java:63)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
> ... 89 more
> This issue occurs if running via Eclipse or straight on Tomcat. Cleaning
> build and Tomcat cache has no effect.
> Scenario 2:
> Changing overriding JSP to use absolute path:
> <stripes:layout-render name="/WEB-INF/jsp/layout/defaultlayout.jsp">
> ...........
> </stripes:layout-render>
> Solves the problem.
> Placing a breakpoint on
> net.sourceforge.stripes.tag.layout.LayoutDefinitionTag (line 70 - Stripes
> 1.5), will show that once you step over 70 & 71, that the stack variable is
> NULL in scenario 1, but is correctly created in scenario 2.
> LayoutDefinitionTag:
> 69: // Fetch the layout context containing parameters and component
> overrides
> 70: Stack<LayoutContext> stack = (Stack<LayoutContext>)
> 71: getPageContext().getRequest().getAttribute(PREFIX + name);
> 72 this.context = stack.peek();
> Evaluating the expression (PREFIX + name) in scenario 1 gives you:
> stripes.layout./WEB-INF/jsp/layout/defaultlayout.jsp
> Evaluating the expression (PREFIX + name) in scenario 2 also gives you:
> stripes.layout./WEB-INF/jsp/layout/defaultlayout.jsp
> Quite strange. The problem must be deeper...
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