com.crystaldecisions.sdk.occa.report.lib.ReportSDKServerException: Failed to open the connection. Failed to open the connection.

Use the sample program for connecting crystal report by passing database connecting parameters, its giving

Error 10884_9404_{0F3C851E-1913-40C5-8403-94B834395DF6}.rpt---- Error code:-2147482892 [CRSDK00000000] Error code name:failed

at com.crystaldecisions.sdk.occa.report.lib.ReportSDKServerException.throwReportSDKServerException.

4.0 BI server version.

Code.

		//Obtain collection of tables from this database controller.
		Tables tables = databaseController.getDatabase().getTables();

		//Set the datasource for all main report tables.
		for (int i = 0; i < tables.size(); i++) {

ITable table = tables.getTable(i);

			//Keep existing name and alias.
			table.setName(table.getName());
			table.setAlias(table.getAlias());

			//Change properties that are different from the original datasource.
			table.setQualifiedName(TABLE_NAME_QUALIFIER + table.getName());

			//Change connection information properties.
			IConnectionInfo connectionInfo = table.getConnectionInfo();

			//Set new table connection property attributes.
			PropertyBag propertyBag = new PropertyBag();

			//Overwrite any existing properties with updated values.
			propertyBag.put("Trusted_Connection", "false");
			propertyBag.put("Server Name", SERVERNAME); //Optional property.
			propertyBag.put("Connection String", CONNECTION_STRING);
			propertyBag.put("Database Name", DATABASE_NAME);
			propertyBag.put("Server Type", "JDBC (JNDI)");
			propertyBag.put("URI", URI);
			propertyBag.put("Use JDBC", "true");
			propertyBag.put("Database DLL", DATABASE_DLL);

			connectionInfo.setAttributes(propertyBag);

			//Set database username and password.
			//NOTE: Even if these the username and password properties don't change when switching databases, the
			//database password is not saved in the report and must be set at runtime if the database is secured.
			connectionInfo.setUserName(DBUSERNAME);
			connectionInfo.setPassword(DBPASSWORD);
			connectionInfo.setKind(ConnectionInfoKind.SQL);

			table.setConnectionInfo(connectionInfo);

			//Update old table in the report with the new table.
			databaseController.setTableLocation(table, tables.getTable(i));

		}

can anybody help on this.