Errors while accessing JSP

[andrzejr]

Hi!

09:42:23,246 WARN [jbossweb] WARNING: JspFactoryImpl: Exception initializing page context
java.lang.LinkageError: loader constraints violated when linking javax/servlet/jsp/JspWriter class
at org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext(JspFactoryImpl.java:170)
at org.apache.jasper.runtime.JspFactoryImpl.getPageContext(JspFactoryImpl.java:154)
at org.apache.jsp.index$jsp._jspService(index$jsp.java:46)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:366)
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:293)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:581)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1687)
at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:544)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1637)
at org.mortbay.http.HttpServer.service(HttpServer.java:875)
at org.jboss.jetty.Jetty.service(Jetty.java:543)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:806)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:956)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:823)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:203)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:290)
at org.mortbay.util.ThreadPool$JobRunner.run(ThreadPool.java:743)
at java.lang.Thread.run(Thread.java:536)

09:42:23,270 INFO [jbossweb] JspFactoryImpl: Exception initializing page context: java.lang.LinkageError: loader constraints violated when linking javax/servlet/jsp/JspWriter class

got this when trying to access this:

<%@ page import="java.util.*" %>



Welcome


Welcome
Time now: <%= new java.util.Date() %>
<%= new java.math.BigDecimal("000001") %>



jboss 3.0.4/jetty sun's jdk 1.4.1

[jules]

please mail me a small test JSP page and I 'll take a look at it.


Jules

[andrzejr]

it is included in my previous post, at the end of message

[mescalito]

I've got this issue when specifying:
<jboss-app>
<loader-repository>my.app.domain.com:loader=myear.ear</loader-repository>
</jboss-app>

When I try to access JSPs for the first time, I have:

11:54:27,781 WARN [ClassLoadingTask] Duplicate class found: javax.servlet.jsp.JspWriter
Current CS: (file:/D:/tools/jboss-3.0.4_tomcat-4.1.12/server/default/tmp/deploy/tomcat-4.1.x/common/lib/servlet.jar/85.servlet.jar <no certificates>)
Duplicate CS: (file:/D:/tools/jboss-3.0.4_tomcat-4.1.12/server/default/tmp/deploy/server/default/lib/javax.servlet.jar/11.javax.servlet.jar <no certificates>)

I resolved this problem by removing javax.servlet.jar from server/default/lib (and it looks a bit weird).

I presume any _WEB_ application with separate classloading would have such problem.

[ben2]

I am having the same problem and I am specifying the jboss-app.xml. It appears that this only happens when I first start the server. If I 'touch' my EAR then the problem goes away, but it would be nice if I did not have to do that every time I started my server.

<jboss-app>
<loader-repository>my.app.domain.com:loader=myear.ear</loader-repository>
</jboss-app>

[ben2]

It appears that if I remove the JBOSS_HOME/server/default/lib/javax.servlet.jar, such that the JBOSS_HOME/tomcat-4.1.x/common/lib/servlet.jar is the only one loaded then this problem goes away. I have not tested this under Jetty yet.