private final String projectName;
        private final boolean noChildren;

        public TaskReportTaskAction(String projectName, boolean noChildren) {
            this.projectName = projectName;
            this.noChildren = noChildren;
        }

        @Override
        public void execute(TaskReportTask task) {
            String description;

.app/build.gradle.kts
[source,kotlin]
----
val myBuildGroup = "my app build"               // Create a group name

tasks.register<TaskReportTask>("tasksAll") {    // Register the tasksAll task
    group = myBuildGroup
    description = "Show additional tasks."
    setShowDetail(true)
}

tasks.named<TaskReportTask>("tasks") {          // Move all existing tasks to the group
    displayGroup = myBuildGroup
}
----
=====

val ciBuildGroup = "My CI build"

tasks.named<TaskReportTask>("tasks") {
    displayGroups = listOf<String>(globalBuildGroup, ciBuildGroup)
}
----
=====
[.multi-language-sample]
=====
.build.gradle
[source,groovy]
----
def globalBuildGroup = "My global build"
def ciBuildGroup = "My CI build"

tasks.named(TaskReportTask, "tasks") {
    displayGroups = [globalBuildGroup, ciBuildGroup]
}

resolvableConfigurations (org.gradle.api.tasks.diagnostics.ResolvableConfigurationsReportTask) - Displays the configurations that can be resolved in root project '$projectName'.
tasks (org.gradle.api.tasks.diagnostics.TaskReportTask) - Displays the tasks runnable from root project '$projectName'.""")
    }

    def "shows Default task defined in build file when run with --types"() {
        given:
        String projectName = 'test'

          | Creator: \tProject.<init>.tasks.resolvableConfigurations()
          | Rules:
             ⤷ copyToTaskContainer
    + tasks
          | Type:   \torg.gradle.api.tasks.diagnostics.TaskReportTask
          | Value:  \ttask ':tasks\'
          | Creator: \tProject.<init>.tasks.tasks()
          | Rules:
             ⤷ copyToTaskContainer
    + updateDaemonJvm

            }

            // check some built-in tasks
            assert schema["help"] == "Help"
            assert schema["projects"] == "ProjectReportTask"
            assert schema["tasks"] == "TaskReportTask"
            assert schema["properties"] == "PropertyReportTask"

            // check some tasks from the project itself
            assert schema["foo"] == "Foo"
            assert schema["bar"] == "Foo"

        </para>
        <table>
            <title>Help Task types</title>
            <tr>
                <td>org.gradle.api.tasks.diagnostics.TaskReportTask</td>
            </tr>
            <tr>
                <td>org.gradle.api.tasks.diagnostics.ProjectReportTask</td>
            </tr>
            <tr>