title: Checking Spring Boot Application Health Without Actuator
body: <p>I'm trying to write an application monitoring program that will monitor multiple applications running across multiple servers (many of them may be on the same server). I'm looking for a way to check whether each individual application is up or down, rather than the server as a whole, and possibly also get average response time. If the artifact version can also be retrieved, that would be a bonus.</p>
  
  <p>Sadly, a lot of these applications are legacy, and not entirely configured properly, so the Spring Boot Health actuator isn't working on many of them, while others don't have Spring Boot at all.</p>
  
  <p>What options are there for getting the status of these applications short of fixing all of them, or implementing new endpoints for them? </p>
  
  <p>Edit: The list of applications that need monitoring is pretty large, so implementing something new for all of them would be less efficient than what I'm trying to accomplish.</p>
  
  <p>Thanks!</p>