In documentation "Setting Up SAP JVM in Eclipse IDE" (https://help.hana.ondemand.com/help/frameset.htm?7613eaad711e1014839a8273b0e91070.html) a definition for a JRE must be added, although in step before that one a JRE has been created.
If one tries to really add another definition and chooses the directory C:\...\sapjvm-7.1.018-windows-x64\sapjvm_7, then the message comes up: "The JRE name is already in use".
Was the wrong directory choosen, is this action really needed, what please has to be done at this point during Getting Started?