I am working on project which needs to be deployable on both **weblogic** and **jboss**. I have compiled **wildfly** from sources. Now, I am trying to get datasource using naming. Application is working fine on **JBOSS EAP 6.1**, I am able to get datasource reference as `javax.sql.DataSource` but now in **widlfly**, using following code

```
dataSource = (javax.sql.DataSource) context.lookup("datasource");

```

it throws exception 

```

java.lang.ClassCastException: org.jboss.jca.adapters.jdbc.WrapperDataSource cannot be cast to javax.sql.DataSource

```

if I try using following code,

```
Object obj = context.lookup("datasource");
dataSource = (javax.sql.DataSource) obj;

```

it doesn't throw the above exception rather on using the datasource, it throws exception

```

Caused by: java.lang.IncompatibleClassChangeError: Class org.jboss.jca.adapters.jdbc.WrapperDataSource does not implement the requested interface javax.sql.DataSource

```

However, looking at code of class, we can see that it implements the `javax.sql.DataSource`

Can anyone please tell me how can I use the casted `WrapperDataSource` or get datasource returned as `javax.sql.DataSource`.

Server Info:

```

Calling "C:\wildfly-8.0.0.Beta2-SNAPSHOT\bin\standalone.conf.bat"
Setting JAVA property to "C:\Progra~2\Java\jdk1.7.0_40\bin\java"
===============================================================================

  JBoss Bootstrap Environment

  JBOSS_HOME: "C:\wildfly-8.0.0.Beta2-SNAPSHOT"

  JAVA: "C:\Progra~2\Java\jdk1.7.0_40\bin\java"

===============================================================================

Listening for transport dt_socket at address: 8787
16:04:19,731 INFO  [org.jboss.modules] (main) JBoss Modules version 1.3.0.Final
16:04:19,903 INFO  [org.jboss.msc] (main) JBoss MSC version 1.2.0.Beta2
16:04:19,997 INFO  [org.jboss.as] (MSC service thread 1-6) JBAS015899: WildFly 8.0.0.Beta2-SNAPSHOT "WildFly" starting
16:04:21,138 INFO  [org.jboss.as.server] (Controller Boot Thread) JBAS015888: Creating http management service using socket-binding (management-http)
16:04:21,138 INFO  [org.xnio] (MSC service thread 1-1) XNIO version 3.1.0.CR7
16:04:21,153 INFO  [org.xnio.nio] (MSC service thread 1-1) XNIO NIO Implementation Version 3.1.0.CR7
16:04:21,309 INFO  [org.jboss.remoting] (MSC service thread 1-1) JBoss Remoting version 4.0.0.Beta1
16:04:21,341 INFO  [org.jboss.as.webservices] (ServerService Thread Pool -- 50) JBAS015537: Activating WebServices Extension
16:04:21,356 INFO  [org.jboss.as.security] (ServerService Thread Pool -- 46) JBAS013171: Activating Security Subsystem
16:04:21,372 INFO  [org.jboss.as.security] (MSC service thread 1-8) JBAS013170: Current PicketBox version=4.0.19.Final
16:04:21,388 INFO  [org.jboss.as.naming] (ServerService Thread Pool -- 41) JBAS011800: Activating Naming Subsystem
16:04:21,388 INFO  [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 33) JBAS010280: Activating Infinispan subsystem.
16:04:21,388 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-3) JBAS017502: Undertow 1.0.0.Beta18 starting
16:04:21,403 INFO  [org.wildfly.extension.undertow] (ServerService Thread Pool -- 49) JBAS017502: Undertow 1.0.0.Beta18 starting
16:04:21,403 INFO  [org.jboss.as.jsf] (ServerService Thread Pool -- 39) JBAS012605: Activated the following JSF Implementations: [main]
16:04:21,419 INFO  [org.jboss.as.connector.logging] (MSC service thread 1-7) JBAS010408: Starting JCA Subsystem (IronJacamar 1.1.0.Final)
16:04:21,450 INFO  [org.jboss.as.naming] (MSC service thread 1-3) JBAS011802: Starting Naming Service
16:04:21,466 INFO  [org.jboss.as.mail.extension] (MSC service thread 1-7) JBAS015400: Bound mail session [java:jboss/mail/Default]
16:04:21,466 INFO  [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 28) JBAS010403: Deploying JDBC-compliant driver class org.h2.Driver (version 1.3)
16:04:21,481 INFO  [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-3) JBAS010417: Started Driver service with driver-name = h2
16:04:21,559 INFO  [org.wildfly.extension.undertow] (ServerService Thread Pool -- 49) JBAS017527: Creating file handler for path C:\wildfly-8.0.0.Beta2-SNAPSHOT/welcome-content
16:04:21,700 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-6) JBAS017525: Started server default-server.
16:04:21,700 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-4) JBAS017531: Host default-host starting
16:04:21,763 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-6) JBAS017519: Undertow HTTP listener default listening on localhost/127.0.0.1:8080
16:04:21,841 INFO  [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 28) JBAS010403: Deploying JDBC-compliant driver class com.ibm.db2.jcc.DB2Driver (version 3.57)
16:04:21,841 INFO  [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-1) JBAS010417: Started Driver service with driver-name = DB2Driver
16:04:22,091 INFO  [org.jboss.as.server.deployment.scanner] (MSC service thread 1-5) JBAS015012: Started FileSystemDeploymentService for directory C:\wildfly-8.0.0.Beta2-SNAPSHOT\standalone\deployments
16:04:22,091 INFO  [org.jboss.as.remoting] (MSC service thread 1-1) JBAS017100: Listening on 127.0.0.1:9999
16:04:22,122 INFO  [org.jboss.ws.common.management] (MSC service thread 1-6) JBWS022052: Starting JBoss Web Services - Stack CXF Server 4.2.1.Final
16:04:22,122 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-8) JBAS010400: Bound data source [java:jboss/datasources/ExampleDS]
16:04:22,122 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-4) JBAS010400: Bound data source [java:/rapiddb]
16:04:22,247 INFO  [org.jboss.as] (Controller Boot Thread) JBAS015961: Http management interface listening on http://127.0.0.1:9990/management
16:04:22,247 INFO  [org.jboss.as] (Controller Boot Thread) JBAS015951: Admin console listening on http://127.0.0.1:9990
16:04:22,247 INFO  [org.jboss.as] (Controller Boot Thread) JBAS015874: WildFly 8.0.0.Beta2-SNAPSHOT "WildFly" started in 2828ms - Started 186 of 223 services (62 services are lazy, passive or on-demand)

```