Problem with spring:eval under Jetty but not Tomcat [SPR-7096] #11756
Description
Paul Chapman opened SPR-7096 and commented
I have the following
<spring:eval expression="object[field]" />
in a JSP page and it generates a null-pointer exception.
If I use
<c:out value="${object[field]}"/>
it works fine. If I use Tomcat instead of Jetty it works OK too.
Maybe this is related to the EL API?
The stack trace is:
2010-04-15 10:16:22,930 [1144706373@qtp-1689272752-4] DEBUG org.springframework.web.servlet.DispatcherServlet - Could not complete request
org.apache.tiles.impl.CannotRenderException: JSPException including path '/WEB-INF/views/visits/show.jspx'.
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:692)
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:644)
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:627)
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:321)
at org.springframework.web.servlet.view.tiles2.TilesView.renderMergedOutputModel(TilesView.java:124)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1060)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:798)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:195)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:159)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:113)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: org.apache.tiles.util.TilesIOException: JSPException including path '/WEB-INF/views/visits/show.jspx'.
at org.apache.tiles.servlet.context.ServletUtil.wrapServletException(ServletUtil.java:241)
at org.apache.tiles.jsp.context.JspTilesRequestContext.include(JspTilesRequestContext.java:105)
at org.apache.tiles.jsp.context.JspTilesRequestContext.dispatch(JspTilesRequestContext.java:96)
at org.apache.tiles.renderer.impl.TemplateAttributeRenderer.write(TemplateAttributeRenderer.java:44)
at org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:106)
at org.apache.tiles.renderer.impl.ChainedDelegateAttributeRenderer.write(ChainedDelegateAttributeRenderer.java:76)
at org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:106)
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:670)
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:336)
at org.apache.tiles.template.InsertAttributeModel.renderAttribute(InsertAttributeModel.java:210)
at org.apache.tiles.template.InsertAttributeModel.end(InsertAttributeModel.java:126)
at org.apache.tiles.jsp.taglib.InsertAttributeTag.doTag(InsertAttributeTag.java:311)
at org.apache.jsp.WEB_002dINF.layouts.default_jspx._jspx_meth_tiles_insertAttribute_1(org.apache.jsp.WEB_002dINF.layouts.default_jspx:450)
at org.apache.jsp.WEB_002dINF.layouts.default_jspx._jspService(org.apache.jsp.WEB_002dINF.layouts.default_jspx:137)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:389)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at org.apache.tiles.servlet.context.ServletTilesRequestContext.forward(ServletTilesRequestContext.java:241)
at org.apache.tiles.servlet.context.ServletTilesRequestContext.dispatch(ServletTilesRequestContext.java:222)
at org.apache.tiles.renderer.impl.TemplateAttributeRenderer.write(TemplateAttributeRenderer.java:44)
at org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:106)
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:670)
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:690)
... 51 more
Caused by: javax.servlet.jsp.JspException: org.springframework.expression.spel.SpelEvaluationException: EL1021E:(pos 0): A problem occurred whilst attempting to access the property 'object': 'Unexpected exc
eption occurred accessing 'object' as an implicit variable'
at org.apache.jsp.tag.web.form.fields.display_tagx.doTag(org.apache.jsp.tag.web.form.fields.display_tagx:210)
at org.apache.jsp.WEB_002dINF.views.visits.show_jspx._jspx_meth_field_display_0(org.apache.jsp.WEB_002dINF.views.visits.show_jspx:100)
at org.apache.jsp.WEB_002dINF.views.visits.show_jspx.access$0(org.apache.jsp.WEB_002dINF.views.visits.show_jspx:85)
at org.apache.jsp.WEB_002dINF.views.visits.show_jspx$show_jspxHelper.invoke0(org.apache.jsp.WEB_002dINF.views.visits.show_jspx:177)
at org.apache.jsp.WEB_002dINF.views.visits.show_jspx$show_jspxHelper.invoke(org.apache.jsp.WEB_002dINF.views.visits.show_jspx:199)
at org.apache.jsp.tag.web.form.show_tagx._jspx_meth_c_when_0(org.apache.jsp.tag.web.form.show_tagx:303)
at org.apache.jsp.tag.web.form.show_tagx._jspx_meth_c_choose_0(org.apache.jsp.tag.web.form.show_tagx:272)
at org.apache.jsp.tag.web.form.show_tagx.doTag(org.apache.jsp.tag.web.form.show_tagx:147)
at org.apache.jsp.WEB_002dINF.views.visits.show_jspx._jspx_meth_page_show_0(org.apache.jsp.WEB_002dINF.views.visits.show_jspx:81)
at org.apache.jsp.WEB_002dINF.views.visits.show_jspx._jspService(org.apache.jsp.WEB_002dINF.views.visits.show_jspx:52)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:389)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.servlet.Dispatcher.include(Dispatcher.java:192)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1013)
at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:698)
at org.apache.tiles.jsp.context.JspTilesRequestContext.include(JspTilesRequestContext.java:103)
... 83 more
Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1021E:(pos 0): A problem occurred whilst attempting to access the property 'object': 'Unexpected exception occurred accessing 'objec
t' as an implicit variable'
at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:199)
at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:71)
at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:52)
at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:102)
at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:97)
at org.springframework.web.servlet.tags.EvalTag.doEndTag(EvalTag.java:108)
at org.apache.jsp.tag.web.form.fields.display_tagx._jspx_meth_spring_eval_0(org.apache.jsp.tag.web.form.fields.display_tagx:485)
at org.apache.jsp.tag.web.form.fields.display_tagx._jspx_meth_c_otherwise_0(org.apache.jsp.tag.web.form.fields.display_tagx:457)
at org.apache.jsp.tag.web.form.fields.display_tagx._jspx_meth_c_choose_0(org.apache.jsp.tag.web.form.fields.display_tagx:344)
at org.apache.jsp.tag.web.form.fields.display_tagx.doTag(org.apache.jsp.tag.web.form.fields.display_tagx:196)
... 108 more
Caused by: org.springframework.expression.AccessException: Unexpected exception occurred accessing 'object' as an implicit variable
at org.springframework.web.servlet.tags.EvalTag$JspPropertyAccessor.resolveImplicitVariable(EvalTag.java:177)
at org.springframework.web.servlet.tags.EvalTag$JspPropertyAccessor.canRead(EvalTag.java:153)
at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:189)
... 117 more
Caused by: java.lang.NullPointerException
at org.springframework.web.servlet.tags.EvalTag$JspPropertyAccessor.resolveImplicitVariable(EvalTag.java:174)
... 119 more
Affects: 3.0.1
Issue Links: