To verify if SpringBoot Actuator is UP and Running we need to verify these items:
1.- starter dependency properly located at the pom.xml:

2.- At the application.properties we specify what we want to examine:

3.- Finally, we run our app and verify if Actuator is UP and running:

4.- In the browser:

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1.- starter dependency properly located at the pom.xml:

2.- At the application.properties we specify what we want to examine:

3.- Finally, we run our app and verify if Actuator is UP and running:

4.- In the browser:

More...