Dursun KOC [https://community.jboss.org/people/dursunkoc] created the discussion "my application does not see the oracle classes even if the driver is defined." To view the discussion, visit: https://community.jboss.org/message/789240#789240 -------------------------------------------------------------- I have created the oracle module at $JBOSS_HOME/modules/com/oracle/ojdbc14/main module.xml  ojdbc14.jar  ojdbc14.jar.index the content of the module.xml is as follows. <module xmlns="urn:jboss:module:1.0" name="com.oracle.ojdbc14">   <resources>     <resource-root path="ojdbc14.jar"/>   </resources>   <dependencies>     <module name="javax.api"/>   </dependencies> </module> when I run my web application it fails with the following exception; [Server:comet_i5] 06:02:44,883 ERROR [stderr] (http--0.0.0.0-8100-2) Caused by: java.lang.ClassNotFoundException: oracle.sql.BLOB from [Module "deployment.Aragorn.war:main" from Service Module Loader] [Server:comet_i5] 06:02:44,884 ERROR [stderr] (http--0.0.0.0-8100-2)    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190) [Server:comet_i5] 06:02:44,884 ERROR [stderr] (http--0.0.0.0-8100-2)    at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468) [Server:comet_i5] 06:02:44,885 ERROR [stderr] (http--0.0.0.0-8100-2)    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456) [Server:comet_i5] 06:02:44,885 ERROR [stderr] (http--0.0.0.0-8100-2)    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:423) [Server:comet_i5] 06:02:44,885 ERROR [stderr] (http--0.0.0.0-8100-2)    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398) [Server:comet_i5] 06:02:44,886 ERROR [stderr] (http--0.0.0.0-8100-2)    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120) should I also add the ojcdb14.jar into the WEB/lib of my war. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/789240#789240] Start a new discussion in JBoss AS 7 Development at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]