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Subject: [tomcat-6.0.33] META-INF/context.xml Environment not working
From: Tim Watts <tim@cliftonfarm.org>
To: users@tomcat.apache.org
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Organization: Clifton Farm
Date: Thu, 22 Sep 2011 11:42:37 -0400
Message-ID: <1316706157.23172.108.camel@dellberry>
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Hello,

My very basic servlet fails to initialize when trying to read its JNDI
environment entry. The app context name is xbasic. The context.xml is in
xbasic.war's META-INF directory and TomCat (6.0.33) correctly copies it
to ${tomcat.home}/conf/Catalina/localhost/xbasic.xml on first deploy.
Below are the relevant snippets. Can anyone see what I'm doing wrong or
is this a bug?

BTW, I'm running this under openjdk 6.


=== EXCEPTION ================================================
javax.servlet.ServletException: Error instantiating servlet class org.cliftonfarm.xbasic.Controller
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
	org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
	org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	java.lang.Thread.run(Thread.java:636)

root cause 

javax.naming.NameNotFoundException: Name configName is not bound in this Context
	org.apache.naming.NamingContext.lookup(NamingContext.java:770)
	org.apache.naming.NamingContext.lookup(NamingContext.java:140)
	org.apache.naming.NamingContext.lookup(NamingContext.java:781)
	org.apache.naming.NamingContext.lookup(NamingContext.java:140)
	org.apache.naming.NamingContext.lookup(NamingContext.java:781)
	org.apache.naming.NamingContext.lookup(NamingContext.java:153)
	org.apache.naming.SelectorContext.lookup(SelectorContext.java:152)
	javax.naming.InitialContext.lookup(InitialContext.java:409)
	javax.naming.InitialContext.doLookup(InitialContext.java:282)
	org.cliftonfarm.xbasic.Controller.<init>(Controller.java:28)
	sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
...

=== context.xml ================================================
<Context unpackWAR="false" privileged="false" antiResourceLocking="false" antiJARLocking="false">
	<Environment 
		name="configName"
		value="${catalina.base}/local/xbasic/config/master.properties"
		description="Full path name of the config file."
		type="java.lang.String"/>

</Context>

=== web.xml ================================================
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>Archetype Created Web Application</display-name>
  <servlet>
    <servlet-name>Controller</servlet-name>
    <servlet-class>org.cliftonfarm.xbasic.Controller</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>Controller</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>
  <env-entry>
  	<env-entry-name>configName</env-entry-name>
  	<env-entry-type>java.lang.String</env-entry-type>
  </env-entry>
</web-app>

=== Servlet constructor ========================================
public class Controller extends HttpServlet {
    private static final long serialVersionUID = 1L;
    private String configName;
    
    /**
     * @throws NamingException 
     * @see HttpServlet#HttpServlet()
     */
    public Controller() throws NamingException {
        super();
        // get & store JNDI info
        configName = InitialContext.doLookup("java:comp/env/configName"); // line 28
        log(getClass().getName() +": Successfully initialized. configName=[" +configName +"]");
    }
...


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