<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Hi Higa-san, I have found this error in my application. I solve this error with two ways, including: 1. (First way)A source code line initialize for log4j. This application run normal when I comment out this line. If i done this way, i can not write log in application and this way is not good   2. (Second way), i don't comment out code line of log4j, i comment out some configuration lines in web.xml:       <filter>         <filter-name>hotdeployfilter</filter-name>         <filter-class>org.seasar.framework.container.hotdeploy.HotdeployFilter</filter-class>     </filter>     <filter-mapping>         <filter-name>hotdeployfilter</filter-name>         <url-pattern>/*</url-pattern>         <dispatcher>REQUEST</dispatcher>         <dispatcher>FORWARD</dispatcher>         <dispatcher>INCLUDE</dispatcher>         <dispatcher>ERROR</dispatcher>     </filter-mapping> My application run normal, too. I know that, this config support for hot deploy which is easy for programmer. what my application will reach to any error if i remove this config? You give me advice, please? Thank for suppor, CanhPV --- On Thu, 3/24/11, Yasuo Higa <higa@isid.co.jp> wrote: <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> From: Yasuo Higa <higa@isid.co.jp> Subject: [seasar-user-en:51] Re: Need to support from seasar To: seasar-user-en@ml.seasar.org Date: Thursday, March 24, 2011, 6:29 PM <div class="plainMail">Hi pham, Could you offer a very simple sample to reproduce the problem? Yasuo Higa > > Dear Higa-san, > > Thank for your email. I have updated path of action following your advice(remove "_" character). Thus,  action property of form is only "/ABCAB/DB001" string (action="/ABCAB/DB001") . I still get same error when i run this configuration. This error is difficult for me. > Actually, this error don't happen usually, it may be happen with first submit or  second submit. > > This error happen when tomcat reach to web.xml and don't reach to action yet. > > Could you give me some solution for this problem? > > > > > --- On Thu, 3/24/11, Yasuo Higa <<a ymailto="mailto:higa@isid.co.jp" href="/mc/compose?to=higa@isid.co.jp">higa@isid.co.jp</a>> wrote: > > From: Yasuo Higa <<a ymailto="mailto:higa@isid.co.jp" href="/mc/compose?to=higa@isid.co.jp">higa@isid.co.jp</a>> > Subject: >  [seasar-user-en:49] Re: Need to support from seasar > To: <a ymailto="mailto:seasar-user-en@ml.seasar.org" href="/mc/compose?to=seasar-user-en@ml.seasar.org">seasar-user-en@ml.seasar.org</a> > Date: Thursday, March 24, 2011, 2:11 PM > > Hi, > > As an undocumented rule, seasar app must not contain "_" > in a package name. > > Sorry for the trouble, > > Yasuo Higa > > > > I am developing project for japanese customer. This > > project use Seasar Framework, including: S2Containter and SAStruts. > > Currently, i get a misunderstand error. Please see this error trace log. > >  You can talk me how to fix this error, please. > > More information: action property of form is /ABC_AB/DB001(action="/ABC_AB/DB001") > > > > Mar 23, 2011 1:09:20 PM org.apache.catalina.core.StandardWrapperValve invoke > > SEVERE: Servlet.service() for servlet default threw exception > > java.lang.NullPointerException > >     at >  org.seasar.struts.util.S2ExecuteConfigUtil.findExecuteConfig(S2ExecuteConfigUtil.java:87) > >     at org.seasar.struts.filter.RoutingFilter.doFilter(RoutingFilter.java:88) > >     at > >  org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) > >     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > >     at org.seasar.framework.container.filter.S2ContainerFilter.doFilter(S2ContainerFilter.java:79) > >     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) > >     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > >     at >  org.seasar.framework.container.hotdeploy.HotdeployFilter.doHotdeployFilter(HotdeployFilter.java:99) > >     at org.seasar.framework.container.hotdeploy.HotdeployFilter.doFilter(HotdeployFilter.java:67) > >     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) > >     at > >  org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > >     at org.seasar.extension.filter.EncodingFilter.doFilter(EncodingFilter.java:69) > >     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.StandardWrapperValve.invoke(StandardWrapperValve.java:233) > >     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) > >     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) > >     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) > >     at > >  org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) > >     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) > >     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859) > >     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) > >     at >  org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) > >     at java.lang.Thread.run(Thread.java:619) > > > > Thank for supporting! > > > > > >        > > > > > > _______________________________________________ > > seasar-user-en mailing list > > <a ymailto="mailto:seasar-user-en@ml.seasar.org" href="/mc/compose?to=seasar-user-en@ml.seasar.org">seasar-user-en@ml.seasar.org</a> > > <a href="https://ml.seasar.org/mailman/listinfo/seasar-user-en" target="_blank">https://ml.seasar.org/mailman/listinfo/seasar-user-en</a> > > > > > > > _______________________________________________ > seasar-user-en mailing list > <a ymailto="mailto:seasar-user-en@ml.seasar.org" href="/mc/compose?to=seasar-user-en@ml.seasar.org">seasar-user-en@ml.seasar.org</a> > <a href="https://ml.seasar.org/mailman/listinfo/seasar-user-en" target="_blank">https://ml.seasar.org/mailman/listinfo/seasar-user-en</a> > > > >        > _______________________________________________ seasar-user-en mailing list <a ymailto="mailto:seasar-user-en@ml.seasar.org" href="/mc/compose?to=seasar-user-en@ml.seasar.org">seasar-user-en@ml.seasar.org</a> <a href="https://ml.seasar.org/mailman/listinfo/seasar-user-en" target="_blank">https://ml.seasar.org/mailman/listinfo/seasar-user-en</a> </div></blockquote></td></tr></table>