Dear All,
I just got a copy of the latest Cocoon CVS head, built and
installed. I'm using:
- Cocoon: latest, greatest CVS head
- JDK: 1.3.0rc1
- Tomcat: 4.0.1
When I open localhost:8080/cocoon I get the following stack trace
(attached at end of message). What's changed recently?
The 'root cause' of the error is listed as:
java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass0(Native Method)
<snip/>
Could this be some kind of library compatibility error? My previous
installs (the last was about three weeks ago) were in the same
environment and all worked fine.
I noticed the following in the INSTALL-SRC.txt file:
6) I get an Exception when accessing Cocoon the first time. What's
wrong?
Cocoon requires a JAXP 1.1 compliant parser. Recent servlet engines
(like Tomcat 3.2.1) use older xml parsers. You have to replace the xml
parser with a newer one (e.g. the Xerces 1.3.0).
For Tomcat 3.2.1 simply remove the jaxp.jar and the parser.jar from
the
tomcat/lib directory and copy the xerces.jar to this directory and
rename
it to parser.jar. Before you restart Tomcat make sure to remove the
tomcat/work directory beforehand.
Does this apply to Tomcat 4.0.1 too? I don't find jaxp.jar in my tomcat
lib directory (or even anything related to it when I unjar all the jar
files that are there).
Many thanks in advance,
Alan.
----------- STACKTRACE ----------------
Apache Tomcat/4.0.1 - HTTP Status 500 - Internal Server Error
type Exception report
message Internal Server Error
description The server encountered an internal error (Internal Server
Error) that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Servlet.init() for servlet Cocoon2 threw
exception
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:871)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:615)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1011)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1106)
at java.lang.Thread.run(Thread.java:484)
---------------
root cause
java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
at
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1534)
at
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:852)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1273)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1156)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at
org.apache.avalon.excalibur.component.DefaultComponentFactory.newInstance(DefaultComponentFactory.java:102)
at
org.apache.avalon.excalibur.component.ThreadSafeComponentHandler.initialize(ThreadSafeComponentHandler.java:98)
at
org.apache.avalon.excalibur.component.ExcaliburComponentManager.initialize(ExcaliburComponentManager.java:158)
at org.apache.cocoon.Cocoon.initialize(Cocoon.java:275)
at
org.apache.cocoon.servlet.CocoonServlet.createCocoon(CocoonServlet.java:1236)
at
org.apache.cocoon.servlet.CocoonServlet.init(CocoonServlet.java:438)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:852)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:615)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1011)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1106)
at java.lang.Thread.run(Thread.java:484)
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