pluto1.17的一个国际化方面的bug

用pluto开发portlet，若自定义的国际化文件，没有默认文件系统会抛出如下的异常，解决问题的方法就是必须要添加一个默认的国际化文件，比如：messages.properties,messages_en.properties，若没有messages.properties文件pluto就会抛出如下异常。

java.util.MissingResourceException: Can't find resource for bundle org.apache.pluto.internal.impl.InlinePortletResourceBundle, key javax.portlet.title
    at java.util.ResourceBundle.getObject(ResourceBundle.java:384)
    at java.util.ResourceBundle.getString(ResourceBundle.java:344)
    at javax.portlet.GenericPortlet.getTitle(GenericPortlet.java:198)
    at javax.portlet.GenericPortlet.render(GenericPortlet.java:174)
    at org.apache.pluto.core.PortletServlet.dispatch(PortletServlet.java:208)
    at org.apache.pluto.core.PortletServlet.doGet(PortletServlet.java:139)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
    at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
    at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
    at org.apache.pluto.core.DefaultPortletInvokerService.invoke(DefaultPortletInvokerService.java:167)
    at org.apache.pluto.core.DefaultPortletInvokerService.render(DefaultPortletInvokerService.java:101)
    at org.apache.pluto.core.PortletContainerImpl.doRender(PortletContainerImpl.java:172)
    at org.apache.pluto.driver.tags.PortletTag.doStartTag(PortletTag.java:152)
    at org.apache.jsp.WEB_002dINF.themes.portlet_002dskin_jsp._jspx_meth_pluto_portlet_0(portlet_002dskin_jsp.java:99)
    at org.apache.jsp.WEB_002dINF.themes.portlet_002dskin_jsp._jspService(portlet_002dskin_jsp.java:74)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
    at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
    at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
    at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)
    at org.apache.jsp.WEB_002dINF.themes.pluto_002ddefault_002dtheme_jsp._jspx_meth_c_forEach_1(pluto_002ddefault_002dtheme_jsp.java:480)
    at org.apache.jsp.WEB_002dINF.themes.pluto_002ddefault_002dtheme_jsp._jspx_meth_c_otherwise_0(pluto_002ddefault_002dtheme_jsp.java:428)
    at org.apache.jsp.WEB_002dINF.themes.pluto_002ddefault_002dtheme_jsp._jspx_meth_c_choose_0(pluto_002ddefault_002dtheme_jsp.java:296)
    at org.apache.jsp.WEB_002dINF.themes.pluto_002ddefault_002dtheme_jsp._jspService(pluto_002ddefault_002dtheme_jsp.java:153)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
    at org.apache.pluto.driver.PortalDriverServlet.doGet(PortalDriverServlet.java:151)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:419)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    at java.lang.Thread.run(Thread.java:619)
2009-7-19 15:06:20 org.apache.pluto.driver.services.impl.resource.SupportedModesServiceImpl isPortletModeSupportedByPortlet