HTTP Status 500 -


type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.el.ELException: Expression cannot be null
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:656)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	filter.HttpHeadFilter.doFilter(HttpHeadFilter.java:36)
	com.cj.trim.trimFilter.doFilter(Unknown Source)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

root cause

javax.el.ELException: Expression cannot be null
	org.apache.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:87)
	org.apache.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:146)
	org.apache.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:190)
	org.apache.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:68)
	org.apache.tiles.evaluator.el.ELAttributeEvaluator.evaluate(ELAttributeEvaluator.java:156)
	org.apache.tiles.evaluator.AbstractAttributeEvaluator.evaluate(AbstractAttributeEvaluator.java:44)
	org.apache.tiles.impl.BasicTilesContainer.evaluate(BasicTilesContainer.java:344)
	org.apache.tiles.jsp.taglib.AttributeTagSupport.doStartTag(AttributeTagSupport.java:156)
	org.apache.jsp.WEB_002dINF.jsp._005ftemplates.menus.menu_005fligen_jsp._jspService(menu_005fligen_jsp.java:99)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
	org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:640)
	org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:634)
	org.apache.tiles.jsp.context.JspTilesRequestContext.include(JspTilesRequestContext.java:103)
	org.apache.tiles.jsp.context.JspTilesRequestContext.dispatch(JspTilesRequestContext.java:96)
	org.apache.tiles.renderer.impl.TemplateAttributeRenderer.write(TemplateAttributeRenderer.java:44)
	org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:103)
	org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:659)
	org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:678)
	org.apache.tiles.impl.BasicTilesContainer.renderContext(BasicTilesContainer.java:176)
	org.apache.tiles.jsp.taglib.InsertTemplateTag.renderContext(InsertTemplateTag.java:91)
	org.apache.tiles.jsp.taglib.InsertTemplateTag.render(InsertTemplateTag.java:81)
	org.apache.tiles.jsp.taglib.RenderTag.doEndTag(RenderTag.java:220)
	org.apache.jsp.WEB_002dINF.jsp._005ftemplates.template_jsp._jspx_meth_tiles_005finsertTemplate_005f0(template_jsp.java:1407)
	org.apache.jsp.WEB_002dINF.jsp._005ftemplates.template_jsp._jspService(template_jsp.java:465)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.apache.tiles.servlet.context.ServletTilesRequestContext.forward(ServletTilesRequestContext.java:241)
	org.apache.tiles.servlet.context.ServletTilesRequestContext.dispatch(ServletTilesRequestContext.java:222)
	org.apache.tiles.renderer.impl.TemplateAttributeRenderer.write(TemplateAttributeRenderer.java:44)
	org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:103)
	org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:659)
	org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:678)
	org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:633)
	org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:322)
	org.springframework.web.servlet.view.tiles2.TilesView.renderMergedOutputModel(TilesView.java:124)
	org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	filter.HttpHeadFilter.doFilter(HttpHeadFilter.java:36)
	com.cj.trim.trimFilter.doFilter(Unknown Source)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.


Apache Tomcat/6.0.18