title: Maven JAXB plugin executing only one excecution
body: <p>I am trying to generated sources from two <code>XSD</code> schemas. My <code>JAXB</code> maven plugin looks like this:</p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;plugin&gt;
      &lt;groupId&gt;com.sun.tools.xjc.maven2&lt;/groupId&gt;
      &lt;artifactId&gt;maven-jaxb-plugin&lt;/artifactId&gt;
      &lt;version&gt;1.1.1&lt;/version&gt;
      &lt;executions&gt;
          &lt;execution&gt;
              &lt;id&gt;GenerateKenexa&lt;/id&gt;
              &lt;goals&gt;
                  &lt;goal&gt;generate&lt;/goal&gt;
              &lt;/goals&gt;
              &lt;configuration&gt;
                  &lt;includeBindings&gt;
                      &lt;includeBinding&gt;**/jaxb-bindings-kenexa.xml&lt;/includeBinding&gt;
                  &lt;/includeBindings&gt;
                  &lt;includeSchemas&gt;
                      &lt;includeSchema&gt;**/KenexaXMLConfiguration.xsd&lt;/includeSchema&gt;
                  &lt;/includeSchemas&gt;
              &lt;/configuration&gt;
          &lt;/execution&gt;
          &lt;execution&gt;
              &lt;id&gt;GenerateTalentQ&lt;/id&gt;
              &lt;goals&gt;
                  &lt;goal&gt;generate&lt;/goal&gt;
              &lt;/goals&gt;
              &lt;configuration&gt;
                  &lt;includeBindings&gt;
                      &lt;includeBinding&gt;**/jaxb-bindings-talentq.xml&lt;/includeBinding&gt;
                  &lt;/includeBindings&gt;
                  &lt;includeSchemas&gt;
                      &lt;includeSchema&gt;**/TalentQXMLConfiguration.xsd&lt;/includeSchema&gt;
                  &lt;/includeSchemas&gt;
              &lt;/configuration&gt;
          &lt;/execution&gt;
      &lt;/executions&gt;
  &lt;/plugin&gt;
  </code></pre>
  
  <p>The first one gets generated fine. But the second one does not. I see in the maven output:</p>
  
  <pre class="lang-none prettyprint-override"><code>[INFO] --- maven-jaxb-plugin:1.1.1:generate (GenerateKenexa) @ online.tests.management ---
  [INFO] Compiling file:/D:/Projects/GTIWebApplications/gti_online_tests_management/src/main/resources/xsd/KenexaXMLConfiguration.xsd
  [INFO] Writing output to D:\Projects\GTIWebApplications\gti_online_tests_management\target\generated-sources\xjc
  [INFO] 
  [INFO] --- maven-jaxb-plugin:1.1.1:generate (GenerateTalentQ) @ online.tests.management ---
  [INFO] files are up to date
  </code></pre>
  
  <p>It says that files are up to date, but they aren't even generated. What might be wrong?</p>