Starting Coherence with WLS Console.

Easy steps... 

1. Goto: Admin Console::Servers::Coherence Servers::myCoherenceServer::Configuration::Server Start
2. Add these two jars to the classpath
• $MW_HOME/modules/features/weblogic.server.modules.coherence.server_12.1.1.0.jar:$MW_HOME/coherence_3.7/lib/coherence.jar
• Replace $MW_HOME by the actual directory path of the Middleware Home
3. Start the Coherence Server from the WLS Admin Console to verify it works fine now. 

Notice, this example is for WebLogic Server 12.1.1