title: unable to remove tomcat jdbc dependency
body: <p>I am building a spring-boot application using an alternative to tomcat related stuff (jetty instead of tomcat and hikariCP instead of tomcat-jdbc) and want to exclude them from my dependencies written in pom.xml</p>
  
  <p>I did that for 2 of the packages as shown below -</p>
  
  <pre><code>    &lt;dependency&gt;
          &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
          &lt;exclusions&gt;
              &lt;exclusion&gt;
                  &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
                  &lt;artifactId&gt;spring-boot-starter-tomcat&lt;/artifactId&gt;
              &lt;/exclusion&gt;
          &lt;/exclusions&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-starter-jetty&lt;/artifactId&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-starter-data-jpa&lt;/artifactId&gt;
          &lt;exclusions&gt;
              &lt;exclusion&gt;
                  &lt;groupId&gt;org.apache.tomcat&lt;/groupId&gt;
                  &lt;artifactId&gt;tomcat-jdbc&lt;/artifactId&gt;
              &lt;/exclusion&gt;
          &lt;/exclusions&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;com.zaxxer&lt;/groupId&gt;
          &lt;artifactId&gt;HikariCP&lt;/artifactId&gt;
          &lt;version&gt;2.6.0&lt;/version&gt;
      &lt;/dependency&gt;
  </code></pre>
  
  <p>But there is some dependency which is including tomcat-jdbc as part of it. </p>
  
  <p>Is there a way to debug that and find out which dependency is including tomcat jdbc as part of it?</p>