You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@tomcat.apache.org by bu...@apache.org on 2001/09/25 19:45:10 UTC
DO NOT REPLY [Bug 3817] New: -
classpath loading priority doesn't match docs
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://nagoya.apache.org/bugzilla/show_bug.cgi?id=3817>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND
INSERTED IN THE BUG DATABASE.
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=3817
classpath loading priority doesn't match docs
Summary: classpath loading priority doesn't match docs
Product: Tomcat 4
Version: 4.0 Final
Platform: PC
OS/Version: Windows 9x
Status: NEW
Severity: Normal
Priority: Other
Component: Catalina
AssignedTo: tomcat-dev@jakarta.apache.org
ReportedBy: pogo_tomcat@yahoo.com
Placing a jar file that contains the Servlet 2.2 classes in $CATALINA_HOME/lib
causes Tomcat to fail to display JSP pages. The documented class loading order
in http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html is:
* /WEB-INF/classes of your web application
* /WEB-INF/lib/*.jar of your web application
* Bootstrap classes of your JVM
* System class loader classses (described above)
* $CATALINA_HOME/common/classes
* $CATALINA_HOME/common/*.jar
* $CATALINA_HOME/classes
* $CATALINA_HOME/lib/*.jar
Since $CATALINA_HOME/lib is last in priority, shouldn't the Servlet 2.3 classes
override the old Servlet classes in $CATALINA_HOME/lib?
This may seem like a perverse thing to do, but it has to do with making a jar
file that's easy to install and use in multiple environments.
The error that Tomcat gives is:
2001-09-25 10:37:38 StandardWrapper[/tomcat-docs:invoker]: Loading container
servlet invoker
2001-09-25 10:37:38 invoker: init
2001-09-25 10:37:38 StandardWrapper[/tomcat-docs:jsp]: Using Jasper classloader
for servlet jsp
2001-09-25 10:37:38 StandardWrapper[/tomcat-docs:jsp]: Marking servlet jsp as
unavailable
2001-09-25 10:37:38 StandardContext[/tomcat-docs]: Servlet /tomcat-docs threw
load() exception
javax.servlet.ServletException: Class org.apache.jasper.servlet.JspServlet is
not a Servlet
at org.apache.catalina.core.StandardWrapper.load(Unknown Source)
at org.apache.catalina.core.StandardContext.loadOnStartup(Unknown Source)
at org.apache.catalina.core.StandardContext.start(Unknown Source)
at org.apache.catalina.core.ContainerBase.addChild(Unknown Source)
at org.apache.catalina.core.StandardHost.addChild(Unknown Source)
at org.apache.catalina.core.StandardHost.install(Unknown Source)
at org.apache.catalina.startup.HostConfig.deployApps(Unknown Source)
at org.apache.catalina.startup.HostConfig.start(Unknown Source)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(Unknown Source)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Unknown Source)
at org.apache.catalina.core.ContainerBase.start(Unknown Source)
at org.apache.catalina.core.ContainerBase.start(Unknown Source)
at org.apache.catalina.core.StandardEngine.start(Unknown Source)
at org.apache.catalina.core.StandardService.start(Unknown Source)
at org.apache.catalina.core.StandardServer.start(Unknown Source)
at org.apache.catalina.startup.Catalina.start(Unknown Source)
at org.apache.catalina.startup.Catalina.execute(Unknown Source)
at org.apache.catalina.startup.Catalina.process(Unknown Source)
at java.lang.reflect.Method.invoke(Native Method)
at org.apache.catalina.startup.Bootstrap.main(Unknown Source)
----- Root Cause -----
java.lang.ClassCastException: org.apache.jasper.servlet.JspServlet
at org.apache.catalina.core.StandardWrapper.load(Unknown Source)
at org.apache.catalina.core.StandardContext.loadOnStartup(Unknown Source)
at org.apache.catalina.core.StandardContext.start(Unknown Source)
at org.apache.catalina.core.ContainerBase.addChild(Unknown Source)
at org.apache.catalina.core.StandardHost.addChild(Unknown Source)
at org.apache.catalina.core.StandardHost.install(Unknown Source)
at org.apache.catalina.startup.HostConfig.deployApps(Unknown Source)
at org.apache.catalina.startup.HostConfig.start(Unknown Source)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(Unknown Source)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Unknown Source)
at org.apache.catalina.core.ContainerBase.start(Unknown Source)
at org.apache.catalina.core.ContainerBase.start(Unknown Source)
at org.apache.catalina.core.StandardEngine.start(Unknown Source)
at org.apache.catalina.core.StandardService.start(Unknown Source)
at org.apache.catalina.core.StandardServer.start(Unknown Source)
at org.apache.catalina.startup.Catalina.start(Unknown Source)
at org.apache.catalina.startup.Catalina.execute(Unknown Source)
at org.apache.catalina.startup.Catalina.process(Unknown Source)
at java.lang.reflect.Method.invoke(Native Method)
at org.apache.catalina.startup.Bootstrap.main(Unknown Source)