Hello. Hi it was going all fine. I am using JDBC . oci8 for Oracle Driver it was working well & very fine & suddenly now whenever i invoke an servlet of any JDBC driver this error comes. Error :java.lang.NullPointerException: 2001-07-29 21:50:59 - Ctx( /sdsi ): Exception in: R( /sdsi + /servlet/sdsi.sdsi + null) - java.lang.UnsatisfiedLinkError: no ocijdbc8 in shared library path at java.lang.Runtime.loadLibrary(Runtime.java) at java.lang.System.loadLibrary(System.java) at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java) at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java) at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.ja va) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java) at java.sql.DriverManager.getConnection(DriverManager.java:83) at java.sql.DriverManager.getConnection(DriverManager.java:126) at sdsi.sdsi.doGet(sdsi.java:29) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:4 05) at org.apache.tomcat.core.Handler.service(Handler.java:287) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372 ) at org.apache.tomcat.core.ContextManager.internalService(ContextManager. java:812) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:758 ) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnectio n(HttpConnectionHandler.java:213) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java: 416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java :501) at java.lang.Thread.run(Thread.java) Please help. Thanks in Advance ************************************************* Mehul S Dave Scientific Officer, (STCS Dept.), Tata Institute of Fundamental Research Phone - 2152971 Extn - 2372 Mumbai . webpage:- http://www.csc.tifr.res.in/~mehul *************************************************