hi? Nice meet you when we insert CLOB data in oracle db, using jboss4.0.4, we have a problem. if you want to disclose a error cause, you must compare two source. first java source has a matter, second jsp source hasn't any error. i want to known a case of first source error. The following first source has a NoClassDefFoundError of jboss/resource/adapter/jdbc/WrappedConnection -------------------------------------------------------------------------------------- /* * Classname : DataChange.java * Version information : v 1.0 */ import java.sql.Clob; import java.sql.Connection; import java.sql.SQLException; import java.util.List; import java.util.Iterator; import java.io.BufferedWriter; import java.io.IOException; import java.io.Reader; import java.io.Writer; import java.io.StringWriter; import java.io.StringReader; import oracle.sql.CLOB; import org.jboss.resource.adapter.jdbc.WrappedConnection; public class EpiaClobUtil { public static Clob createClob(Connection con, String string) throws SQLException { CLOB clob = null; boolean bOk = false; WrappedConnection wc = null; System.out.println("wc : " + wc); try { wc= (WrappedConnection) con; Connection oracleConnection=wc.getUnderlyingConnection(); clob = CLOB.createTemporary(oracleConnection, true, CLOB.DURATION_SESSION); clob.open(CLOB.MODE_READWRITE); BufferedWriter bw = new BufferedWriter(clob.getCharacterOutputStream()); try { bw.write(string, 0, string.length()); bw.close(); } catch (IOException e) { System.out.println("createClob5" + e); System.out.println("createClob51" + e.getMessage() ); } bOk = true; }catch(Exception e1){ e1.printStackTrace(); System.out.println("createClob11" + e1); } finally { if (!bOk && clob != null) { try { CLOB.freeTemporary(clob); } catch (SQLException e) { e.printStackTrace(); System.out.println("createClob8" + e); } clob = null; } } return clob; } } ------------------------------------------------------------------------------------ The Following Second Source has not any problem ------------------------------------------------------------------------------------ <%@ page contentType="text/html; charset=euc-kr" session="true"%> <%@ page import = " java.util.*, java.text.*, java.io.*, java.sql.*, javax.sql.*, com.ehigh.univdbfwl.*, javax.naming.*, org.jboss.resource.adapter.jdbc.WrappedConnection" %> <% InitialContext ctx = new InitialContext(); DataSource ds = (DataSource)ctx.lookup("java:/DefaultDS"); Connection con = ds.getConnection(); System.out.println("First Connection --> "+con.toString()+""); out.println("First Connection --> "+con.toString()+""); if(con instanceof WrappedConnection){ System.out.println("Yes instanceof"); out.println("Yes instanceof"); WrappedConnection wc=(WrappedConnection)con; Connection oracleConnection=wc.getUnderlyingConnection(); }else{ System.out.println("No instanceof"); out.println("No instanceof"); } WrappedConnection unlycon = (WrappedConnection)con; System.out.println(unlycon.getUnderlyingConnection()+""); out.println(unlycon.getUnderlyingConnection()+""); Connection con1 = ds.getConnection(); WrappedConnection unlycon1 = (WrappedConnection)con1; System.out.println("unlycon1 Connection : "+unlycon1.getUnderlyingConnection()+""); out.println("unlycon1 Connection : "+unlycon1.getUnderlyingConnection()+""); System.out.println("Second Connection : "+con1); out.println("Second Connection : "+con1); con.close(); con1.close(); %> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4056337#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...