We are installing APM agent version 23.1 for WebSphere with Java 1.7_64 on z/OS and the agent is not initializing.
The same package was used for WebSphere with Java version 1.8 and the agent started normally.
Release : 23.1
Setting the below property resolved the issue:
agentManager.cipherSuites.1=SSL_ECDHE_RSA_WITH_AES_128_CBC_SHA,SSL_ECDHE_RSA_WITH_AES_128_GCM_SHA256
This is set in the IntroscopeAgent.profile. Restart the Agent to ensure the setting gets enabled.