Restart your eclipse if the settings have not taken place. As follows: In Eclipse, select Help and select Eclipse Marketplace… Eclipse Marketplace window will appear, you search EclEmma, the results are as follows: If the Eclipse Foundation is the Publisher, you are good to select Run. Copy the lombok.jar to your STS installation path, Contents > MacOS > lombok.jar (I’ve remove the version).
There are many ways to install the EclEmma plugin into Eclipse, one of which is the easiest to install from the Eclipse Marketplace Client. Manually: Download the latest release and install it manually using Preferences > Plugins > Install plugin from disk.
However, the eclipse will be common on all platforms. Feeling adventurous? Take a look at the eclipse posts in one place. Update the STS.ini with -javaagent:lombok.jar.