java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at oracle.jdbc.driver.T4CTTIoauthenticate.marshalOauth(T4CTTIoauthenticate.java:381)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:360)
at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:493)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:164)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:34)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:767)
at oracle.jdbc.pool.OracleDataSource.getPhysicalConnection(OracleDataSource.java:324)
at oracle.jdbc.pool.OracleConnectionPoolDataSource.getPooledConnection(OracleConnectionPoolDataSource.java:114)
at oracle.jdbc.pool.OracleConnectionCacheImpl.getNewPoolOrXAConnection(OracleConnectionCacheImpl.java:694)
at oracle.jdbc.pool.OracleConnectionCacheImpl.getPooledConnection(OracleConnectionCacheImpl.java:540)
at oracle.jdbc.pool.OracleConnectionCacheImpl.getConnection(OracleConnectionCacheImpl.java:346)
at oracle.jdbc.pool.OracleConnectionCacheImpl.getConnection(OracleConnectionCacheImpl.java:324)
at oracle.sysman.util.jdbc.ConnectionCache._getConnection(ConnectionCache.java:296)
at oracle.sysman.util.jdbc.ConnectionCache.getUnwrappedConnection(ConnectionCache.java:423)
at oracle.sysman.emSDK.svc.conn.FGAConnectionCache.getFGAConnection(FGAConnectionCache.java:156)
at oracle.sysman.emSDK.svc.conn.ConnectionService.getPrivateConnection(ConnectionService.java:605)
at oracle.sysman.emSDK.svc.conn.ConnectionService.getRepositoryVersionAndMode(ConnectionService.java:368)
at oracle.sysman.emSDK.svc.conn.ConnectionService.verifyRepositoryEx(ConnectionService.java:395)
at oracle.sysman.eml.app.ContextInitFilter.doFilter(ContextInitFilter.java:144)

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