Matt/Rashmi

make sure you have a non-empty password specified for username supplied to DB
(The Tomcat 6 Configuration for MySQL is available here)
http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html

Bon Chance!
Martin-
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----- Original Message ----- 
From: "Rashmi Rubdi" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <users@tomcat.apache.org>
Sent: Thursday, March 29, 2007 1:18 PM
Subject: Re: classnotfoundexception with tomcat 6.0


> Are there additional error messages in the logs? Sometimes the logs
> have more error information that will help you solve this problem.
> 
> Check if you have properly nested the Context tag under the Host tag
> either in server.xml or   if a separate Context xml file is used then
> it should be associated with the Host tag.
> 
> I remember seeing another error with MySQL connection and it required
> an additional JAR file aspectjrt.jar (comes with the MySQL disto) in
> addition to mysql-connector-java-5.0.5-bin.jar , adding the
> aspectjrt.jar JAR fixed some errors, sorry I don't remember what the
> errors were.
> 
> -Rashmi
> 
> On 3/29/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>> I have a webapp running under tomcat 5.5 with no problem.
>>
>> When I try to run my webapp with tomcat 6.0, I have an classnotfound error 
>> for
>> the mysql driver.
>>
>> Of course, i have try to put the mysql driver jar file in /tomcat 6/lib 
>> folder,
>> in my webapp web-inf/lib folder, in both folders... I always have this error
>> with tomcat 6.
>> But it works perfect with tomcat 5.5...
>>
>> Here is the error :
>>
>>
>> 29 mars 2007 17:02:41 org.apache.catalina.realm.DataSourceRealm open
>> GRAVE: Exception performing authentication
>> org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver class
>> 'com.mysql.jdbc.Driver'
>>         at
>> org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:766)
>>         at
>> org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540)
>>         at
>> org.apache.catalina.realm.DataSourceRealm.open(DataSourceRealm.java:403)
>>         at
>> org.apache.catalina.realm.DataSourceRealm.authenticate(DataSourceRealm.java:283)
>>         at
>> org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:258)
>>         at
>> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:417)
>>         at
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
>>         at
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
>>         at
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>>         at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
>>         at
>> org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:866)
>>         at
>> org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:716)
>>         at
>> org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1498)
>>         at java.lang.Thread.run(Unknown Source)
>> Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
>>         at java.net.URLClassLoader$1.run(Unknown Source)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(Unknown Source)
>>         at java.lang.ClassLoader.loadClass(Unknown Source)
>>         at java.lang.ClassLoader.loadClass(Unknown Source)
>>         at java.lang.ClassLoader.loadClassInternal(Unknown Source)
>>         at java.lang.Class.forName0(Native Method)
>>         at java.lang.Class.forName(Unknown Source)
>>         at
>> org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760)
>>         ... 13 more
>>
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> 
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