it’s because of eclipse cannot find JDK installation. and you have to show eclipse a correct jdk installation.

make sure you have installed jdk

Go to Window > Preferences > Java > Installed JREs > and check your java installations.
if don’t have JDK then you to click on search and select the path of JAVA folder from your windows. it will automatically add the jdk to the installed JREs, select appropriate JDK and click on OK

Then DO maven update.

That’s it!!