I've got to admit that that stack trace doesn't offer me any clues. You should probably upgrade to the 4.0.3 version of Tomcat, because there are some security issues with prior versions. I would also try updating to the latest version of Xalan (you are using xslt, right?).
Switching to JDK1.4, of course, is an option :-) Does anyone else understand sealing violations? Jeff > -----Original Message----- > From: Jordan C N Chong [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 15, 2002 11:19 AM > To: Jeff Schnitzer > Subject: RE: [Mav-user] Howto: Getting the JSP Example Working > > Dear Jeff... :) > > I am not sure which version xalan and I am using. > but tomcat is 4.0, jdk is jdk1.3.0_02 > and this is the whole page of exception (man... :)) > > To ease the pain, do you think I should switch the whole thing to jdk1.4?? > thanks. > > Exception Report: > javax.servlet.ServletException: Servlet.init() for servlet jsp threw > exception > at > org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:875) > at > org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:6 21 > ) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv e. > ja > va:214) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 66) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 72 > ) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv e. > ja > va:215) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 66) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 72 > ) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:236 6) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java :1 > 64 > ) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 66) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462 ) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 64) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 72 > ) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. ja > va > :163) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 66) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 72 > ) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.j av > a: > 1005) > at > org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java: 10 > 98 > ) > at java.lang.Thread.run(Unknown Source) > > Root Cause: > java.lang.SecurityException: sealing violation > at java.net.URLClassLoader.defineClass(Unknown Source) > at java.net.URLClassLoader.access$100(Unknown Source) > at java.net.URLClassLoader$1.run(Unknown Source) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(Unknown Source) > at > org.apache.catalina.loader.StandardClassLoader.findClass(StandardClassLo ad > er > .java:671) > at > org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLo ad > er > .java:1090) > at > org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLo ad > er > .java:989) > at java.lang.ClassLoader.loadClassInternal(Unknown Source) > at > org.apache.jasper.compiler.TldLocationsCache.processWebDotXml(TldLocatio ns > Ca > che.java:164) > at > org.apache.jasper.compiler.TldLocationsCache.(TldLocationsCache.java:138 ) > at > org.apache.jasper.EmbededServletOptions.(EmbededServletOptions.java:324) > at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:265) > at > org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:856) > at > org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:6 21 > ) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv e. > ja > va:214) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 66) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 72 > ) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv e. > ja > va:215) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 66) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 72 > ) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:236 6) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java :1 > 64 > ) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 66) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462 ) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 64) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 72 > ) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. ja > va > :163) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja va > :5 > 66) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 72 > ) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.j av > a: > 1005) > at > org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java: 10 > 98 > ) > at java.lang.Thread.run(Unknown Source > > Best regards, > -------------------------------------------- > Jordan Cheun Ngen, Chong > INF-4067 Universiteit Twente > Postbus 217 > 7500 AE Enschede > The Netherlands > > Distributed and Embedded Systems (DIES) > -------------------------------------------- > Office Phone: +31 53 4894655 > Web site: http://www.cs.utwente.nl/~chong > Email Add.: [EMAIL PROTECTED] > ============================================ > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of Jeff Schnitzer > > Sent: Wednesday, March 13, 2002 4:20 PM > > To: Jordan C N Chong > > Cc: maverick > > Subject: RE: [Mav-user] Howto: Getting the JSP Example Working > > > > > > > From: Jordan C N Chong [mailto:[EMAIL PROTECTED]] > > > > > > Thousand thanks for your tip. I got this error when I start up the > > Tomcat: > > > log4j:ERROR No appenders could be found for category > > > (org.infohazard.maverick.Di > > > spatcher). > > > log4j:ERROR Please initialize the log4j system properly. > > > > > > What does it mean??? > > > > It means that the logging system is not initialized :-) Scott included > > a link to the FAQ in his email: > > http://mav.sourceforge.net/maverick-manual.html#N10722 > > > > If you do not desire detailed logging information, feel free to ignore > > the message. > > > > > And when I run the friendbook example, the following problems > > happened: > > > > > > javax.servlet.ServletException: Servlet.init() for servlet jsp threw > > > exception > > > at > > > > > org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:875) > > > ... ... > > > > > > Root Cause: > > > java.lang.SecurityException: sealing violation > > > at java.net.URLClassLoader.defineClass(Unknown Source) > > > ... ... > > > > Hmmm, sealing violations. I have heard much about these but not > > experienced them myself. Which exact versions of tomcat, jdk, and xslt > > processor (if you're using one) are you using? And what is the > > remainder of the Root Cause stack trace? > > > > Jeff Schnitzer > > [EMAIL PROTECTED] > > > > _______________________________________________ > > Mav-user mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/mav-user > > _______________________________________________ Mav-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mav-user
