Why not do your initialisation in the Servlet.init() method?
p
On 22 Sep 2011, at 16:42, Tim Watts <t...@cliftonfarm.org> wrote:
> 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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