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Tomcat can't find my JDBC Resource !!!

 
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org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null'

Is the error I get.

When they compiled the latest �stable� Tomcat, did they bother to test it before putting it out?



I looke through the entire google, and through this entire list, and I found lots of people having this problem. Yet, I didn�t find any solutions (that worked for me that is).



Basically, here�s what I have:



I�m running Tomcat 5.0.27 on Java 1.5 beta 2; I am using MySQL 4.1.2



Inside /common/lib/ I have mysql-connector.jar which is 3.0.14 � production version.



Inside my server.xml I have (relevant stuff):



<Host appBase="/home/resk/web" name="resk" autoDeploy="true" unpackWARs="true" liveDeploy="true">



</Host>



Inside my /conf/Catalina/resk I have resk.xml:



<?xml version='1.0' encoding='utf-8'?>

<Context debug="5" displayName="RESK" docBase="ROOT" // BY THE WAY I also tried /home/resk/web/ROOT

path="/" reloadable="false">

<Environment name="data.source.name" type="java.lang.String" value="java:comp/env/jdbc/RESK"/> // BTW I tried without this line

<Resource auth="Container" name="jdbc/RESK"

type="javax.sql.DataSource"/>

<ResourceParams name="jdbc/RESK">

<parameter>

<name>url</name>

<value>jdbc:mysql://127.0.0.1:3306/resk?autoReconnect=true</value>

</parameter>

<parameter>

<name>maxIdle</name>

<value>2</value>

</parameter>

<parameter>

<name>maxActive</name>

<value>10</value>

</parameter>

<parameter>

<name>driverClassName</name>

<value>com.mysql.jdbc.Driver</value>

</parameter>

<parameter>

<name>maxWait</name>

<value>10000</value>

</parameter>

<parameter>

<name>removeAbandoned</name>

<value>true</value>

</parameter>

<parameter>

<name>username</name>

<value>resk</value>

</parameter>

<parameter>

<name>factory</name>

<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>

</parameter>

<parameter>

<name>removeAbandonedTimeout</name>

<value>60</value>

</parameter>

<parameter>

<name>password</name>

<value>RESK</value>

</parameter>

</ResourceParams>

</Context>



Inside my /home/resk/web/ROOT/WEB-INF/ I have web.xml (relevant stuff):



<web-app version="2.4"

xmlns="http://java.sun.com/xml/ns/j2ee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee

http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >



<resource-ref>

<description>DB Connection</description>

<res-ref-name>jdbc/RESK</res-ref-name>

<res-type>javax.sql.DataSource</res-type>

<res-auth>Container</res-auth>

</resource-ref>



<!-- Used for startup primarly. Kepping things in one place. -->

<env-entry>

<env-entry-name>data.source.name</env-entry-name>

<env-entry-type>java.lang.String</env-entry-type>

<env-entry-value>java:comp/env/jdbc/RESK</env-entry-value>

</env-entry>





Now, here�s how I load the data source (relevant part of the class):



public class Manager

{

DataSource ds;

static Manager instance;



private Manager()

{

try

{

// This is all the web.xml properties

InitialContext context = new InitialContext();

dbDataSource = (String)context.lookup("java:comp/env/data.source.name");

ds = (DataSource) new InitialContext().lookup(dbDataSource);

}

catch ( NamingException e )

{

Logger.getLogger("problem").fatal("Unable to load database data source!",e);

ds = null; // This will throw enough exceptions to notice the problem

}

}



/**

* @return instance of the Manager.

*/

public static Manager getInstance()

{

if (instance == null) instance = new Manager();

return instance;

}



/**

* @return Connection from the pool. Make sure to close it when done.

*/

public synchronized Connection getConnection() throws SQLException

{

return ds.getConnection();

}



}





Now, interesting thing to note. If I look at my catalina_log.2004-07-11.txt, I will find the following:



2004-07-11 20:47:47 NamingContextListener[/Catalina/resk/]: Resource parameters for jdbc/RESK = ResourceParams[name=jdbc/RESK, parameters={url=jdbc:mysql://127.0.0.1:3306/resk?autoReconnect=true, maxIdle=2, maxActive=10, driverClassName=com.mysql.jdbc.Driver, maxWait=10000, removeAbandoned=true, username=resk, factory=org.apache.commons.dbcp.BasicDataSourceFactory, removeAbandonedTimeout=60, password=RESK}]

2004-07-11 20:47:47 NamingContextListener[/Catalina/resk/]: Adding resource ref jdbc/RESK

2004-07-11 20:47:47 NamingContextListener[/Catalina/resk/]: ResourceRef[className=javax.sql.DataSource,factoryClassLocation=null,factoryClassName=org.apache.naming.factory.ResourceFactory,{type=scope,content=Shareable},{type=auth,content=Container},{type=url,content=jdbc:mysql://127.0.0.1:3306/resk?autoReconnect=true},{type=maxIdle,content=2},{type=maxActive,content=10},{type=driverClassName,content=com.mysql.jdbc.Driver},{type=maxWait,content=10000},{type=removeAbandoned,content=true},{type=username,content=resk},{type=factory,content=org.apache.commons .dbcp.BasicDataSourceFactory},{type=removeAbandonedTimeout,content=60},{type=password,content=RESK}]

2004-07-11 20:47:47 NamingContextListener[/Catalina/resk/]: Adding environment entry data.source.name

2004-07-11 20:47:47 NamingContextListener[/Catalina/resk/]: Resource parameters for UserTransaction = null



Looking through this stuff it�s obvious that my resource IS found, and that it IS loaded. Yet, somehow, My application does not see it�



Anybody knows why? Any help will be greatly appreciated�
 
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