wondering if anyone has seen this while running the admin webapp from
tomcat 5.0.16?
running the admin webapp, when clicking on the Service (Catalina) link
in the left side frame, i get the following stack trace:
type Exception report
message
description The server encountered an internal error () that prevented
it from fulfilling this request.
exception
javax.servlet.ServletException: Define tag cannot set a null value
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageCon
textImpl.java:867)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageConte
xtImpl.java:800)
admin.service.service_jsp._jspService(service_jsp.java:840)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.ja
va:1069)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestP
rocessor.java:455)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java
:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
root cause
javax.servlet.jsp.JspException: Define tag cannot set a null value
org.apache.struts.taglib.bean.DefineTag.doEndTag(DefineTag.java:272)
admin.service.service_jsp._jspService(service_jsp.java:235)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.ja
va:1069)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestP
rocessor.java:455)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java
:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
note The full stack trace of the root cause is available in the Tomcat
logs.
in the tomcat logs:
2004-01-20 12:13:52 StandardContext[/admin]action: Entered
TreeControlTestAction:perform()
2004-01-20 12:13:52 StandardContext[/admin]action: tree param is null
2004-01-20 12:13:52 StandardContext[/admin]action: Select event on
Standalone:type=Service,serviceName=Catalina
2004-01-20 12:13:52 ApplicationDispatcher[/admin] Servlet.service() for
servlet admin.service.service_jsp threw exception
javax.servlet.jsp.JspException: Define tag cannot set a null value
at
org.apache.struts.taglib.bean.DefineTag.doEndTag(DefineTag.java:272)
at admin.service.service_jsp._jspService(service_jsp.java:235)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
<snip>
my <Service> element from web.xml looks like:
<Service name="Catalina">
<Connector port="8008"
maxThreads="150" minSpareThreads="25"
maxSpareThreads="75"
enableLookups="false" redirectPort="8443"
acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true">
<!-- Restrict access -->
<Valve className="org.apache.catalina.valves.RemoteAddrValve"
allow="localhost,127.0.0.1,192.168.0.*,192.168.100.*"/>
</Connector>
<Connector address="192.168.100.152" port="8009" redirectPort="8443"
debug="0" enableLookups="false"
protocol="AJP/1.3" />
<Engine name="Standalone" defaultHost="192.168.100.152" debug="0"
jvmRoute="app4">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="catalina_log." suffix=".txt"
timestamp="true"/>
<Host name="192.168.100.152" debug="0" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Cluster
className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
name="ValidationCluster"
debug="32"
serviceclass="org.apache.catalina.cluster.mcast.McastService"
mcastAddr="228.1.2.4"
mcastPort="45566"
msgFrequency="500"
mcastFrequency="500"
mcastDropTime="3000"
tcpThreadCount="10"
tcpListenAddress="192.168.100.152"
tcpListenPort="4001"
tcpSelectorTimeout="100"
printToScreen="true"
expireSessionsOnShutdown="false"
useDirtyFlag="true"
replicationMode="pooled"
managerClassName="org.apache.catalina.cluster.session.SimpleTcpReplicat
ionManager"
/>
<Valve
className="org.apache.catalina.cluster.tcp.ReplicationValve"
filter=".*\.gif;.*\.js;.*\.jpg;.*\.htm;.*\.html;.*\.txt;"/>
<Context path="/manager" debug="0" privileged="true"
docBase="/home/tomcat/tomcat5/inst1/server/webapps/manager">
<Realm className="org.apache.catalina.realm.MemoryRealm" />
</Context>
<Context path="/admin" debug="0" privileged="true"
docBase="/home/tomcat/tomcat5/inst1/server/webapps/admin">
<Realm className="org.apache.catalina.realm.MemoryRealm" />
</Context>
</Host>
</Engine>
</Service>
any ideas?
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