Today I am getting below error in J2EE application: java.sql.SQLException: ORA-01033: ORACLE initialization or shutdown in progress at java.lang.Throwable.<init>(Throwable.java) at java.lang.Throwable.<init>(Throwable.java) at java.sql.SQLException.<init>(SQLException.java:53) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134) at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289) at oracle.jdbc.ttc7.O3log.receive1st(O3log.java:408) at oracle.jdbc.ttc7.TTC7Protocol.logon(TTC7Protocol.java:260) at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:365) at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:547) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:347) at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:169) at oracle.jdbc.pool.OracleConnectionPoolDataSource.getPhysicalConnection(OracleConnectionPoolDataSource.java:149) at oracle.jdbc.pool.OracleConnectionPoolDataSource.getPooledConnection(OracleConnectionPoolDataSource.java:95) Can someone please let me know what does that error mean?