* for technical reasons, it is not part of the public API. In particular, this method can be changed or deleted
     * without prior notice and must not be used by plugins.
     *
     * @param classRealm The class realm hosting the build extensions of this project, may be {@code null}.
     */
    public void setClassRealm(ClassRealm classRealm) {
        this.classRealm = classRealm;
    }

                        ModelProblem.Version.BASE,
                        "Invalid packaging for parent POM " + ModelProblemUtils.toSourceHint(parentModel)
                                + ", must be \"pom\" but is \"" + parentModel.getPackaging() + "\"",
                        parentModel.getLocation("packaging"));
            }
        }

        return parentData;
    }

                "The activeProfile should be active in the maven project");

        assertEquals("||${project.basedir}||", activeProfile.getProperties().get("prop-active"));

        List<ReportPlugin> activeProfilePlugins = activeProfile.getReporting().getPlugins();
        assertEquals(2, activeProfilePlugins.size(), "The activeProfile should be active in the maven project");

        checkReportPluginWithArtifactId(

            // the pool core size will be incremented before submitting
            // all the tasks, then the thread will block waiting for all
            // those subtasks to finish.
            // This ensures the number of running workers is no more than
            // the defined parallism, while making sure the pool will not
            // be exhausted
            //
            return new ThreadPoolExecutor(

                    Severity.ERROR,
                    Version.BASE,
                    prefix + "systemPath",
                    d.getManagementKey(),
                    "must be omitted. This field may only be specified for a dependency with system scope.",
                    d);
        }

        if (request.getValidationLevel() >= ModelBuilderRequest.VALIDATION_LEVEL_MAVEN_2_0) {