How to change Java path used by Eclipse?

Question

I recently compiled my code using Java 1.8. I had set JAVA_HOME and PATH to do the compilation using ant

Now, When I start Eclipse (Luna), in order to debug application using Tomcat plugin for eclipse. I starts using below path - using Java 1.7

And tomcat starts and prints below

Apr 10, 2018 4:25:34 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            6.3
Apr 10, 2018 4:25:34 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          amd64
Apr 10, 2018 4:25:34 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JAVA_HOME:             C:\Program Files\Java\jre7
Apr 10, 2018 4:25:34 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.7.0_79-b15

How can I use Java 1.8 in this ?

Answer 1

Proceed to the Tomcat server instance configuration and set Tomcat Runtime Environment JRE to "Workbench Default JRE". see the pic

Answer 2

Right click on the project > Java Build Path > Libraries

Remove java 1.7 library and "Add Library..." for java 1.8

Answer 3

Window -> Preferences -> Java -> Installed JREs