I work on a project that has started to use the
          jsonschema2pojo maven plugin. I'm finding that Eclipse isn't
          generating the source automatically, so I assume this requires
          a lifecycle mapping entry.
        
        
        In the "Lifecycle Mappings" preferences, I clicked "Open"
          to edit the file.  There were already two entries in it, for
          swagger and the compiler plugin.
        
        
        I added the following new entry:
        ---------------------
            <pluginExecution>
                  <pluginExecutionFilter>
                      <groupId>org.jsonschema2pojo</groupId>
                     
          <artifactId>jsonschema2pojo-maven-plugin</artifactId>
                      <versionRange>1.0.2</versionRange>
                      <goals>
                          <goal>generate</goal>
                      </goals>
                  </pluginExecutionFilter>
                  <action>
                      <execute>
                         
          <runOnIncremental>true</runOnIncremental>
                         
          <runOnConfiguration>true</runOnConfiguration>
                      </execute>
                  </action>
              </pluginExecution>
        ---------------------------
        
        
        I saved the file, but I'm not sure what else I need to do
          to enable this.  I tried:
        * clicking "Reload" in the preferences section
        * project clean
        * maven project update
        * restarting Eclipse
        
        
        None of these appeared to make any difference.
        
        
        I also thought perhaps the "goal" might be
          "generate-sources", so I tried that, along with all the other
          steps, but that made no difference.
        
        
        
        I checked in the eclipse log, and I didn't see any problems
          associated with this.
        
        
        I am currently trying to get this working in eclipse
          2021-03.