How to identify JRE used by Confluence?

Question

Hi,

I am running mutliple Confluence and JIRA instances on the same server (behind a reverse proxy). All over sudden, one of my confluence instances started not trusting its corresponding JIRA server. My first guess was that the JIRA server's SSL cert was not in the Confluence server's cacert file. But it was.

So now I am thinking: am I even sure I am looking at the correct JRE? Since the system has its own JRE and JDK and every single JIRA and Confluence instance also installed its own JRE, how can I _know_ which JRE a particular confluence (or JIRA for that matter) instance is using?

Thanks!
Christoph

YongTack_ Lim · Answer

Is there a way to check it from the command line in Linux?

AnnWorley · Answer

AnnWorley · Answer

Great question. You can actually view in the UI the path to the Java being used. It's on Admin>System Information (Base URL//admin/systeminfo.action). Do a find for "java.home".