javax.faces.FacesException，当用户点击返回时
[英]javax.faces.FacesException, when user hits return
问题描述
I have a JSP which is a included JSP inside another JSP. 
我有一个JSP，它是另一个JSP中包含的JSP。
During runtime, if I keep the cursor inside a textbox and hit return, I get following exception. 在运行时，如果将光标保留在文本框中并按回车键，则会出现以下异常。
The input field in my child JSP is as follows. 我的子JSP中的输入字段如下。
<input type="text" id="mask" name="mask" value="<%=mask%>" size="30"/>
Exception: 例外：
javax.faces.FacesException
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:388)
at com.soa.console.faces.myfaces.MyFacesServlet.service(MyFacesServlet.java:262)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1320)
at com.soa.common.console.CrossSiteScriptingValidator.doFilter(CrossSiteScriptingValidator.java:129)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.SecuritySessionServletFilter.doFilter(SecuritySessionServletFilter.java:80)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.SessionValidatorFilter.doFilter(SessionValidatorFilter.java:114)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.RequestAttributesFilter.doFilter(RequestAttributesFilter.java:43)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.ParameterToSessionPersisterFilter.doFilter(ParameterToSessionPersisterFilter.java:63)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:443)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
at com.soa.transport.jetty.j2ee.HttpContextAppHandler.doHandle(HttpContextAppHandler.java:278)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:67)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:367)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:486)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException
at com.soa.transport.jetty.j2ee.HttpContextAppHandler.doHandle(HttpContextAppHandler.java:291)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:293)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:120)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416)
at com.soa.console.faces.config.impl.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:124)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
... 39 more
Caused by: java.lang.NullPointerException
at org.apache.jasper.runtime.JspRuntimeLibrary.getContextRelativePath(JspRuntimeLibrary.java:907)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:962)
at com.soa.jsp.dev.wizards.routing.manage_005fprocess_005factivity_005fholder_jsp._jspService(manage_005fprocess_005factivity_005fholder_jsp.java:176)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1320)
at com.soa.dev.filter.JspCompilationFilter.doFilter(JspCompilationFilter.java:137)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:443)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
at com.soa.transport.jetty.j2ee.HttpContextAppHandler.doHandle(HttpContextAppHandler.java:278)
... 48 more
Caused by:
java.io.IOException
at com.soa.transport.jetty.j2ee.HttpContextAppHandler.doHandle(HttpContextAppHandler.java:291)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:293)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:120)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416)
at com.soa.console.faces.config.impl.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:124)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
at com.soa.console.faces.myfaces.MyFacesServlet.service(MyFacesServlet.java:262)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1320)
at com.soa.common.console.CrossSiteScriptingValidator.doFilter(CrossSiteScriptingValidator.java:129)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.SecuritySessionServletFilter.doFilter(SecuritySessionServletFilter.java:80)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.SessionValidatorFilter.doFilter(SessionValidatorFilter.java:114)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.RequestAttributesFilter.doFilter(RequestAttributesFilter.java:43)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.ParameterToSessionPersisterFilter.doFilter(ParameterToSessionPersisterFilter.java:63)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:443)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
at com.soa.transport.jetty.j2ee.HttpContextAppHandler.doHandle(HttpContextAppHandler.java:278)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:67)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:367)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:486)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at org.apache.jasper.runtime.JspRuntimeLibrary.getContextRelativePath(JspRuntimeLibrary.java:907)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:962)
at com.soa.jsp.dev.wizards.routing.manage_005fprocess_005factivity_005fholder_jsp._jspService(manage_005fprocess_005factivity_005fholder_jsp.java:176)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1320)
at com.soa.dev.filter.JspCompilationFilter.doFilter(JspCompilationFilter.java:137)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:443)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
at com.soa.transport.jetty.j2ee.HttpContextAppHandler.doHandle(HttpContextAppHandler.java:278)
... 48 more
Caused by:
java.lang.NullPointerException
at org.apache.jasper.runtime.JspRuntimeLibrary.getContextRelativePath(JspRuntimeLibrary.java:907)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:962)
at com.soa.jsp.dev.wizards.routing.manage_005fprocess_005factivity_005fholder_jsp._jspService(manage_005fprocess_005factivity_005fholder_jsp.java:176)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1320)
at com.soa.dev.filter.JspCompilationFilter.doFilter(JspCompilationFilter.java:137)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:443)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
at com.soa.transport.jetty.j2ee.HttpContextAppHandler.doHandle(HttpContextAppHandler.java:278)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:293)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:120)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416)
at com.soa.console.faces.config.impl.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:124)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
at com.soa.console.faces.myfaces.MyFacesServlet.service(MyFacesServlet.java:262)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1320)
at com.soa.common.console.CrossSiteScriptingValidator.doFilter(CrossSiteScriptingValidator.java:129)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.SecuritySessionServletFilter.doFilter(SecuritySessionServletFilter.java:80)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.SessionValidatorFilter.doFilter(SessionValidatorFilter.java:114)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.RequestAttributesFilter.doFilter(RequestAttributesFilter.java:43)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.soa.common.console.ParameterToSessionPersisterFilter.doFilter(ParameterToSessionPersisterFilter.java:63)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:443)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
at com.soa.transport.jetty.j2ee.HttpContextAppHandler.doHandle(HttpContextAppHandler.java:278)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:67)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:367)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:486)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
1 个解决方案
解决方案1
0 2013-08-08 00:46:00
Look closer at the root cause (the bottommost exception): 仔细研究根本原因（最底层的异常）：
java.lang.NullPointerException
at org.apache.jasper.runtime.JspRuntimeLibrary.getContextRelativePath(JspRuntimeLibrary.java:907)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:962)
at com.soa.jsp.dev.wizards.routing.manage_005fprocess_005factivity_005fholder_jsp._jspService(manage_005fprocess_005factivity_005fholder_jsp.java:176)
You've a ..manage/process/activity/holder.jsp file which uses a <jsp:include> whose src has caused NullPointerException in some way during resolving the context relative path. 您有一个..manage/process/activity/holder.jsp文件，该文件使用<jsp:include>其src在解析上下文相对路径时以某种方式导致NullPointerException 。
I can think of 2 possible causes: 我可以想到2种可能的原因：
The
srcitself isnull.src本身为null。 That may happen on a dynamic include like follows:这可能会在动态包含中发生，如下所示： <jsp:include src="${someBean.someInclude}" />If you indeed have such an include, you need to make sure that its
srcnever evaluates asnull.如果确实包含此类include，则需要确保其src永远不会评估为null。The webapp's runtime classpath is polluted with arbitrarily downloaded
jsp-api.jarfile from a different servletcontainer make/version which conflicts with the servletcontainer's (in your case, Jetty's) own internal libraries.该Webapp的运行时类路径受到来自不同servlet容器制造/版本的任意下载的jsp-api.jar文件的污染，该文件与servlet容器（在您的情况下为Jetty）自己的内部库冲突。If you indeed have done like that, you'd need to get rid of them all and make sure that the runtime classpath is free of duplicate older versioned servletcontainer-specific libraries.
如果确实做到了这一点，则需要将它们全部清除，并确保运行时类路径中没有重复的旧版本的特定于servlet容器的特定库。 See for a related answer also How do I import the javax.servlet API in my Eclipse project? 另请参阅相关答案： 如何在Eclipse项目中导入javax.servlet API？
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