RTC 6.0.2 JDK 8
Accepted answer
The CLM 6.0.2 server ships with and depends on IBM JVM 1.7.0 (at a minimum 7.1.3.30). Java 1.8 is not supported as runtime JVM for CLM server 6.0.2: a table describing the Java SDK support within CLM 6.0.2 can be generated from the system requirements document: https://jazz.net/wiki/bin/view/Deployment/CLMSystemRequirements602
RTC Eclipse clients however do support Java 1.8: see the same report.
RTC Eclipse clients however do support Java 1.8: see the same report.