Why Oracle "Protocol Violation" errors seen periodically in logs ?

Solution Verified - Updated -

Issue

  • Oracle Protocol Violation errors seen periodically in logs`.
    java.sql.SQLException: Protocol violation
            oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:450)
            oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:186)
            oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:521)
            oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:205)
            oracle.jdbc.driver.T4CPreparedStatement.fetch(T4CPreparedStatement.java:1082)
            oracle.jdbc.driver.OracleResultSetImpl.close_or_fetch_from_next(OracleResultSetImpl.java:369)
            oracle.jdbc.driver.OracleResultSetImpl.next(OracleResultSetImpl.java:273)

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 5
  • Red Hat JBoss Fuse
    • 6.x
  • Java Development Kits showing behavior (this may not be directly related).
    • JDK 1.6.0_20
    • JDK 1.6.0_21
    • Not JDK 1.6.0_17
  • Oracle JDBC Driver versions
    • 10.2
    • 11.2
  • No intervening hardware or software firewalls

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