If you are trying to install AEM 6.0 with Java 8, might be facing issues in succeeding it and would be thinking about does AEM 6.0 support Java 8 or not ! But actually yes, you can install AEM 6.0 with Java 8 by following the below steps
1. Install AEM 6.0 with Java 7 on first
2. Install SP 1 for AEM 6.0. You can download from here.
3. Install Java 8
4. Now, you can run AEM6.0 with SP1 with Java 8