I am currently running JIRA v5.2. I switched Java from JRE to JDK in order to make better use of the JavaMelody plugin.
I see from the "Supported Platforms" pages that JIRA v6.0.x no longer supports Java 1.6 and requires Java 1.7.
I recall from upgrading to JIRA v5.2 that that upgrade automatically upgraded the Java JRE... so I expect the upgrade to JIRA 6.0.x to switch me to Java 1.7.
But will it switch me back from JDK to JRE?