title: maven-compiler-plugin:jar:3.8.1 is missing
body: <p>Trying to use 3.8.1 instead of 3.8.0 but get the message:</p>
  
  <p>[WARNING] The POM for org.apache.maven.plugins:maven-compiler-plugin:jar:3.8.1 is missing, no dependency information available.</p>
  
  <p>My pom.xml works fine with 3.8.0. Except for a specific problem. I am long awaiting 3.8.1. According to Maven Central it seems to be available. But simply changing 3.8.0 to 3.8.1 in my pom.xml led to the warning and the failure message: </p>
  
  <p>Plugin org.apache.maven.plugins:maven-compiler-plugin:3.8.1 or one of its dependencies could not be resolved: Failure to find org.apache.maven.plugins:maven-compiler-plugin:jar:3.8.1 in <a href="https://repo.maven.apache.org/maven2" rel="noreferrer">https://repo.maven.apache.org/maven2</a> was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [Help 1]</p>
  
  <pre><code>        &lt;plugin&gt;
              &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
              &lt;version&gt;3.8.1&lt;/version&gt;
              &lt;configuration&gt;
                  &lt;source&gt;11&lt;/source&gt;
                  &lt;target&gt;11&lt;/target&gt;
                  &lt;debug&gt;true&lt;/debug&gt;
              &lt;/configuration&gt;
          &lt;/plugin&gt;
  </code></pre>
  
  <p>What do I have misunderstood, seeing 3.8.1 in Maven Central but cannot use it in my pom.xml?</p>