The latest Java 7 installer for OS X places a new control panel on the system, replacing the Java Preferences app. If you disable Java, the server console for FileMaker Server 12 will not open and no log entries are created.
If Java has previously been customized, you can resolve this issue by turning Java back on. There is a new System Preferences pane for Java 7. Click on the Java icon in System Preferences and unlike many software packages, a new Java Control Panel application opens.
At the new Java Control Panel application, make sure that “Enable Java content in the browser” is checked.
This is an important note to consider for FileMaker Server 12 administrators as Java 6 is reaching End Of Life next month, prompting many vendors to update their code in the recent past and not so distant future. Disabling java in Safari has no impact on using FileMaker Server.