title: HikaiCP : How to see the connection pool size?
body: <p>I have a java/spring project and i use hikaricp with Hibernate. I add Hikari to manage connection pool size. In hibernate.properties, i add :</p>
  
  <pre><code>hibernate.hikari.maximumPoolSize=20
  </code></pre>
  
  <p>I don't know how to check the size of connection while running my application ?
  Thanks</p>