How to make datasource test-connection to Oracle DB Instance.

 Required Tool and Software: 

• OpenJDK / Oracle JAVA 
• dbconnect.jar
• ojdbc8.jar

Download link for dbconnect.jar and ojdbc8.jar and other .jar’s 

https://drive.google.com/drive/folders/1H0UI62dmVnAQmKmPSRMrztmzrq1y49to?usp=drive_link

TEST Connection for Oracle,

Command:

/usr/bin/java -cp /opt/test/dbConnect.jar:/opt/test/ojdbc8.jar com.sid.dbConnect jdbc:oracle:thin:@123.789.123.456/SERVICENAME “$username”  ‘$Password’ oracle.jdbc.driver.OracleDriver

FYI , Class Name to be used on Datasource for  application servers to connect respective Oracle DB (11g / 12c / 19c ) :

 oracle.jdbc.xa.client.OracleXADataSource   (for 19c and 12c DB , ojdbc8.jar with JDK8 complied)

oracle.jdbc.pool.OracleConnectionPoolDataSource  (for 11g with minimum jDK7, JDK8 complied)

New JDBC String : LOADBALANCER and failover for ORACLE Datasource

jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=123.456.123.789)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=123.456.123.789)(PORT=1521))(FAILOVER=on)(LOAD_BALANCE=on))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=MY_SERVICE_NAME)))

Add below parameter on JVM arguments if you were facing SSL_protcol_Handshake issue on WebSphere Application server / WebSphere liberty.

-Dcom.ibm.jsse2.overrideDefaultTLS=true

Thanks :-)