</params>
            </configuration>
          </execution>
          <execution>
            <id>plugin-doc</id>
            <goals>
              <goal>xdoc</goal>
              <goal>xsd</goal>
            </goals>
            <phase>generate-resources</phase>
            <configuration>
              <version>2.0.0</version>
              <models>

              <version>1</version>
            </dependency>
          </dependencies>
          <executions>
            <execution>
              <id>first</id>
              <goals>
                <goal>compile</goal>
              </goals>
            </execution>
          </executions>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <dependencies>

     1. plugin goal execution in a child is usually simply appended (at end): you can't try to insert in the middle of pre-existing inherited executions,

     2. append happens at plugin level first, then goal level, independently from phases.
        This means for example that adding pluginA:goal2 to pre-existing (pluginA:goal1, pluginB:goal) will lead to (pluginA:goal1, pluginA:goal2, pluginB:goal)

        return taskSegments;
    }

    @Override
    public boolean requiresProject(MavenSession session) {
        List<String> goals = session.getGoals();
        if (goals != null) {
            for (String goal : goals) {
                if (!isGoalSpecification(goal)) {
                    return true;
                }
            }
        }
        return false;
    }

            <id>parent-1</id>
            <phase>validate</phase>
            <goals>
              <goal>parent-1</goal>
            </goals>
          </execution>
          <execution>
            <id>parent-2</id>
            <phase>validate</phase>
            <goals>
              <goal>parent-2</goal>
            </goals>
          </execution>
          <execution>

            <id>child-1</id>
            <phase>validate</phase>
            <goals>
              <goal>child-1</goal>
            </goals>
          </execution>
          <execution>
            <id>child-2</id>
            <phase>validate</phase>
            <goals>
              <goal>child-2</goal>
            </goals>
          </execution>
          <execution>

                <executions>
                    <execution>
                        <id>nexus.xml</id>
                        <goals>
                            <goal>java</goal>
                            <goal>xpp3-reader</goal>
                            <goal>xpp3-writer</goal>
                        </goals>
                        <configuration>
                            <version>1.0.8</version>

        return Plugin.newBuilder()
                .groupId("org.apache.maven.plugins")
                .artifactId(artifactId)
                .executions(Arrays.stream(goals)
                        .map(goal -> PluginExecution.newBuilder()
                                .id("default-" + goal)
                                .goals(List.of(goal))
                                .build())

              <resourcePaths>maven-core-it.properties</resourcePaths>
              <pluginClassLoaderOutput>target/pcl.properties</pluginClassLoaderOutput>
            </configuration>
            <goals>
              <goal>load</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

            <id>exec-1</id>
            <phase>validate</phase>
            <goals>
              <goal>log-string</goal>
            </goals>
          </execution>
          <execution>
            <!-- NOTE: <id> deliberately omitted here! -->
            <phase>validate</phase>
            <goals>
              <goal>log-string</goal>
            </goals>
          </execution>
        </executions>
      </plugin>