Oracle JDBC slow connection on some virtual server

This issue is found on Oracle JDBC driver 11.2.x. Environment : Linux virtual server, Oracle JDBC driver 11.2.x Issue : Oracle connection takes long time or occurs timeout error Cause : Oracle JDBC driver, when it connect to database server, calls java.security.SecureRandom class. SecureRandom uses /dev/random on Linux or Unix server. /dev/random pseudo device uses …