JPA database error???

When I left Friday my Enterprise app was working fine, I come in today and restart and now I am getting this error:

java.lang.ClassCastException: com.sun.enterprise.naming.SerialContext cannot be cast to javax.sql.DataSource
        at oracle.toplink.essentials.jndi.JNDIConnector.connect(JNDIConnector.java:129)
        at oracle.toplink.essentials.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:184)
        at oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:582)
        at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:280)
        at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:229)
        at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:93)
        at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:126)
        at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:120)
        at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:91)
        at com.deltacom.sap.jpa.JPAFactory.getEntityManager(JPAFactory.java:55)

Any ideas? This is on glassfish and the mysql-connector-java-5.0.8-bin.jar is located in glassfish/lib directory...

ansaurus

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JPA database error???

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