title: Why are SLF4J Logger and LoggerFactory imports missing from maven project?
body: <p>Logger and LoggerFactory WERE available just before I added Maven exec plugin which caused IntelliJ to start whining about using Java 5. Fixed that up and now 
  they are not available from the imports list now, leaving me only with:</p>
  
  <p>Logger from java.util.logging and java.lang.system are all I've got. Mysterious indeed.
  .</p>
  
  <p>.</p>
  
  <p>.</p>
  
  <p>Main</p>
  
  <pre><code>public class MultiThreadedBlockingServer {
  
      private static final Logger log = LoggerFactory.getLogger(MultiThreadedBlockingServer.class);
  </code></pre>
  
  <p>Most of pom.xml</p>
  
  <pre><code>&lt;properties&gt;
          &lt;maven.compiler.source&gt;11&lt;/maven.compiler.source&gt;
          &lt;maven.compiler.target&gt;11&lt;/maven.compiler.target&gt;
      &lt;/properties&gt;
  
  
      &lt;dependencyManagement&gt;
          &lt;dependencies&gt;
              &lt;!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api --&gt;
              &lt;dependency&gt;
                  &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
                  &lt;artifactId&gt;slf4j-simple&lt;/artifactId&gt;
                  &lt;version&gt;1.7.28&lt;/version&gt;
              &lt;/dependency&gt;
  
  
          &lt;/dependencies&gt;
      &lt;/dependencyManagement&gt;
  
      &lt;build&gt;
          &lt;plugins&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
                  &lt;artifactId&gt;exec-maven-plugin&lt;/artifactId&gt;
                  &lt;version&gt;1.2.1&lt;/version&gt;
                  &lt;configuration&gt;
                      &lt;mainClass&gt;com.demo.blocking.InToOut_BlockingServer_AutoClose&lt;/mainClass&gt;
                  &lt;/configuration&gt;
              &lt;/plugin&gt;
          &lt;/plugins&gt;
      &lt;/build&gt;
  </code></pre>