java.lang.LinkageError: Class oracle/net/ns/Packet violates loader constraints: definition mismatch between parent and child loaders

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    Root Cause Analysis

    1. java.lang.LinkageError

      Class oracle/net/ns/Packet violates loader constraints: definition mismatch between parent and child loaders

      at oracle.net.ns.NSProtocol.connect()
    2. Oracle jdbc
      OracleConnectionPoolDataSource.getPooledConnection
      1. oracle.net.ns.NSProtocol.connect(Unknown Source)
      2. oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:844)
      3. oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:268)
      4. oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:414)
      5. oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
      6. oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
      7. oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
      8. oracle.jdbc.pool.OracleDataSource.getPhysicalConnection(OracleDataSource.java:297)
      9. oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:221)
      10. oracle.jdbc.pool.OracleConnectionPoolDataSource.getPhysicalConnection(OracleConnectionPoolDataSource.java:157)
      11. oracle.jdbc.pool.OracleConnectionPoolDataSource.getPooledConnection(OracleConnectionPoolDataSource.java:94)
      11 frames
    3. com.ibm.ws
      DSConfigurationHelper$1.run
      1. com.ibm.ws.rsadapter.DSConfigurationHelper$1.run(DSConfigurationHelper.java:1012)
      1 frame