if (plugin.isExtensions() && !artifacts.isEmpty()) {
                // ignore plugin descriptor parsing errors at this point
                // these errors will reported during calculation of project build execution plan
                try {
                    pluginDescriptor = extractPluginDescriptor(artifacts.get(0), plugin);
                } catch (PluginDescriptorParsingException | InvalidPluginDescriptorException e) {

        int result = 0;
        for (ProjectSegment projectBuild : projectBuildList) {
            MavenExecutionPlan plan = calculateExecutionPlan(
                    projectBuild.getSession(),
                    projectBuild.getProject(),
                    projectBuild.getTaskSegment().getTasks());
            result += plan.size();
        }
        return result;
    }

        assertEquals("1.0.1", session.getCurrentProject().getVersion());

        MavenExecutionPlan plan = calculateExecutionPlan(session, "clean", "install");

        List<MojoExecution> executions = getExecutions(plan);

        // [01] clean:clean
        // [02] modello:xpp3-writer
        // [03] modello:java
        // [04] modello:xpp3-reader

            return builder.recordStats().build(identityLoader());
          }
        });
  }

  private CacheBuilderFactory cacheFactory() {
    // This is trickier than expected. We plan to put 15 values in each of these (WARMUP_MIN to
    // WARMUP_MAX), but the tests assume no values get evicted. Even with a maximumSize of 100, one

                forkedExecutions = calculateForkedGoal(mojoExecution, session, forkedProject, alreadyPlannedExecutions);
            }

            // This List can be empty when the executions are already present in the plan
            if (!forkedExecutions.isEmpty()) {
                mojoExecution.setForkedExecutions(BuilderCommon.getKey(forkedProject), forkedExecutions);
            }
        }
    }

            return builder.recordStats().build(identityLoader());
          }
        });
  }

  private CacheBuilderFactory cacheFactory() {
    // This is trickier than expected. We plan to put 15 values in each of these (WARMUP_MIN to
    // WARMUP_MAX), but the tests assume no values get evicted. Even with a maximumSize of 100, one

 * for further instructions. Whenever possible, you should change any references of type {@code
 * Ordering} to be of type {@code Comparator} instead. However, at this time we have no plan to
 * <i>deprecate</i> this class.
 *
 * <p>Many replacements involve adopting {@code Stream}, and these changes can sometimes make your