JRE version is 1.6.0; version 1.7.0 or later is needed to run Google Plugin for Eclipse

Question

I have 3 versions of Java installed on my system: 6, 7, and 8... I am required to have JRE6 available for a product my company develops, so I cannot get rid of it... But despite copying my Eclipse install to a new folder for another project I need to work on and removing JRE6 from this version alltogether, I still cannot get it to work.

How can I get the google plugin for Eclipse to work in my scenario?

Answer 1

Add Java 7.0 to Eclipse if you haven't: Window -> Preferences -> Java -> Installed JREs.

Next add Java 7.0 library to your project: Right click on project -> Properties -> Java Build Path -> Libraries tab -> Remove JRE 1.6 and add New Library (JRE System Library, 1.7.0).

Last set Java 7.0 compliance level: Right click on project -> Preferences -> Java Compiler -> Compiler compliance level: 1.7

Also since you can use different Java to run applications, you also have to change this in the Run configuration which you use to start AppEngine related tasks.

Answer 2

If you have created a shortcut to start eclipse, you can add a parameter to tell it to use the jre of your choice like this -

C:\eclipse\eclipse.exe -vm "C:\Programs\jdk\jdk1.7.0_55\bin\javaw.exe"

I have used "javaw" executable from a jdk installation, but you may point to the same executable within a JRE installation as well.

This will resolve the error.

Answer 3

Keep in mind that there is a separation between the JVM that Eclipse itself is running in and the various JREs that you can configure in Eclipse to run your programs/applications. You need to specify to Eclipse what JVM you want it to run under, using eclipse.ini.

That's separate from the Installed JREs configuration you show in your screen shot above.