Guys I've broken my head with this error, google gives nothing. I tried to follow http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html.
Tomcat 6.0. Oracle 9.0. driver: oracle_jdbc13-9.0.2.0.0.jar is added to "E:\Program Files\Apache Software Foundation\Tomcat 6.0\lib\" I see at catalina.2009-03-27.log: *SEVERE:* Null component Catalina:type=DataSource,path=/com.km.integration.service.web,host=localhost,class=javax.sql.DataSource,name="jdbc/isDS" *web.xml*: <web-app> <resource-ref> <description>Oracle Datasource example</description> <res-ref-name>jdbc/isDS</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> .... context.xml is placed to META-INF/context.xml : <?xml version='1.0' encoding='utf-8'?> <Context> <Resource name="jdbc/isDS" auth="Container" type="javax.sql.DataSource" driverClassName="oracle.jdbc.OracleDriver" url="jdbc:oracle:thin:@172.16.4.4:1523:schema" username="test" password="test"/> </Context> This connection works I've tested it. *How can I fix this exception??* I've even don't try to call the interested JNDI DataSource. When Tomcat starts it even check the connection, screenshot at http://ovservice.org/trouble.PNG -- ________________________ Best regards, Alexandr Khlystov