tasks.register('ok') {
                doLast { }
            }
        """
        file("inc/sub/src/main/java/test/PluginImpl.java") << """
            package test;

            import ${Project.name};
            import ${Plugin.name};

            public class PluginImpl implements Plugin<Project> {
                public void apply(Project project) {
                }
            }
        """

                        implementationClass = "test.PluginImpl"
                    }
                }
            }
        """
        pluginSourceFile = rootDir.file("src/main/java/test/PluginImpl.java")
        pluginSourceFile << """
            package test;

            import ${Project.name};
            import ${Plugin.name};

            public class PluginImpl implements Plugin<Project> {