The JDK Configurations enable the Java action to execute using different JDK configurations, and makes it easy to switch between those configurations.
To Add a new JDK Config use the following steps;
Now we need to add the jdk classpath setting;
You should now see the jdk config you just created in the dropdown list on the Java Compiler action's property page. You can create as many configurations as you like. These configs are stored in the registry, if you move your project to another machine you should first define those configurations on the new machine.