Package org.gradle.api

# Interface Task

All Superinterfaces:
  `Comparable<Task>`, `ExtensionAware`, `Named`

All Known Subinterfaces:
  `ObjectFilesToBinary`

All Known Implementing Classes:
  `AbstractArchiveTask`, `AbstractCodeQualityTask`, `AbstractCompile`, `AbstractConfigurationReportTask`, `AbstractCopyTask`, `AbstractDependencyReportTask`, `AbstractExecTask`, `AbstractLinkTask`, `AbstractNativeCompileTask`, `AbstractNativePCHCompileTask`, `AbstractNativeSourceCompileTask`, `AbstractProjectBasedReportTask`, `AbstractPublishToMaven`, `AbstractReportTask`, `AbstractScalaCompile`, `org.gradle.api.internal.AbstractTask`, `AbstractTestTask`, `AntlrTask`, `AntTarget`, `ArtifactTransformsReportTask`, `Assemble`, `BuildEnvironmentReportTask`, `CCompile`, `Checkstyle`, `CodeNarc`, `ComponentReport`, `ConventionReportTask`, `org.gradle.api.internal.ConventionTask`, `Copy`, `CppCompile`, `CppPreCompiledHeaderCompile`, `CPreCompiledHeaderCompile`, `CreateStartScripts`, `CreateStartScripts`, `CreateStaticLibrary`, `DefaultTask`, `Delete`, `DependencyInsightReportTask`, `DependencyReportTask`, `DependentComponentsReport`, `Ear`, `Exec`, `ExtractSymbols`, `GenerateBuildDashboard`, `GenerateCUnitLauncher`, `GenerateEclipseClasspath`, `GenerateEclipseJdt`, `GenerateEclipseProject`, `GenerateEclipseWtpComponent`, `GenerateEclipseWtpFacet`, `GenerateFiltersFileTask`, `GenerateIdeaModule`, `GenerateIdeaProject`, `GenerateIdeaWorkspace`, `GenerateIvyDescriptor`, `GenerateMavenPom`, `GenerateModuleMetadata`, `GeneratePluginDescriptors`, `GenerateProjectFileTask`, `GenerateSchemeFileTask`, `GenerateSolutionFileTask`, `GenerateSwiftPackageManagerManifest`, `GenerateWorkspaceSettingsFileTask`, `GenerateXcodeProjectFileTask`, `GenerateXcodeWorkspaceFileTask`, `GeneratorTask`, `GradleBuild`, `GroovyCompile`, `Groovydoc`, `HtmlDependencyReportTask`, `InitBuild`, `InstallExecutable`, `InstallXCTestBundle`, `JacocoBase`, `JacocoCoverageVerification`, `JacocoReport`, `JacocoReportBase`, `Jar`, `Jar`, `JavaCompile`, `Javadoc`, `JavaExec`, `LinkExecutable`, `LinkMachOBundle`, `LinkSharedLibrary`, `ModelReport`, `ObjectiveCCompile`, `ObjectiveCppCompile`, `ObjectiveCppPreCompiledHeaderCompile`, `ObjectiveCPreCompiledHeaderCompile`, `OutgoingVariantsReportTask`, `PluginUnderTestMetadata`, `Pmd`, `PrefixHeaderFileGenerateTask`, `ProcessResources`, `ProjectBasedReportTask`, `ProjectReportTask`, `PropertiesGeneratorTask`, `PropertyListGeneratorTask`, `PropertyReportTask`, `PublishToIvyRepository`, `PublishToMavenLocal`, `PublishToMavenRepository`, `ResolvableConfigurationsReportTask`, `RunTestExecutable`, `ScalaCompile`, `ScalaDoc`, `Sign`, `SourceTask`, `StripSymbols`, `SwiftCompile`, `Sync`, `Tar`, `TaskReportTask`, `Test`, `TestReport`, `UnexportMainSymbol`, `UpdateDaemonJvm`, `ValidatePlugins`, `War`, `WindowsResourceCompile`, `Wrapper`, `WriteProperties`, `XCTest`, `XmlGeneratorTask`, `Zip`

public interface Task extends Comparable<Task>, ExtensionAware, Named

A `Task` represents a single atomic piece of work for a build, such as compiling classes or generating javadoc.

Each task belongs to a `Project`. You can use the various methods on `TaskContainer` to create and lookup task instances. For example, `TaskContainer.create(String)` creates an empty task with the given name. You can also use the `task` keyword in your build file:

     task myTask
     task myTask { configure closure }
     task myTask(type: SomeType)
     task myTask(type: SomeType) { configure closure }

Each task has a name, which can be used to refer to the task within its owning project, and a fully qualified path, which is unique across all tasks in all projects. The path is the concatenation of the owning project's path and the task's name. Path elements are separated using the ":" character.

## Task Actions

A `Task` is made up of a sequence of `Action` objects. When the task is executed, each of the actions is executed in turn, by calling `Action.execute(T)`. You can add actions to a task by calling `doFirst(Action)` or `doLast(Action)`.

Groovy closures can also be used to provide a task action. When the action is executed, the closure is called with the task as parameter. You can add action closures to a task by calling `doFirst(groovy.lang.Closure)` or `doLast(groovy.lang.Closure)`.

There are 2 special exceptions which a task action can throw to abort execution and continue without failing the build. A task action can abort execution of the action and continue to the next action of the task by throwing a `StopActionException`. A task action can abort execution of the task and continue to the next task by throwing a `StopExecutionException`. Using these exceptions allows you to have precondition actions which skip execution of the task, or part of the task, if not true.

## Task Dependencies and Task Ordering

A task may have dependencies on other tasks or might be scheduled to always run after another task. Gradle ensures that all task dependencies and ordering rules are honored when executing tasks, so that the task is executed after all of its dependencies and any "must run after" tasks have been executed.

Dependencies to a task are controlled using `dependsOn(Object...)` or `setDependsOn(Iterable)`, and `mustRunAfter(Object...)`, `setMustRunAfter(Iterable)`, `shouldRunAfter(Object...)` and `setShouldRunAfter(Iterable)` are used to specify ordering between tasks. You can use objects of any of the following types to specify dependencies and ordering:

- A `String`, `CharSequence` or `groovy.lang.GString` task path or name. A relative path is interpreted relative to the task's `Project`. This allows you to refer to tasks in other projects. These task references will not cause task creation.
- A `Task`.
- A `TaskDependency` object.
- A `TaskReference` object.
- A `Buildable` object.
- A `RegularFileProperty` or `DirectoryProperty`.
- A `Provider` object. May contain any of the types listed here.
- A `Iterable`, `Collection`, `Map` or array. May contain any of the types listed here. The elements of the iterable/collection/map/array are recursively converted to tasks.
- A `Callable`. The `call()` method may return any of the types listed here. Its return value is recursively converted to tasks. A `null` return value is treated as an empty collection.
- A Groovy `Closure` or Kotlin function. The closure or function may return any of the types listed here. Its return value is recursively converted to tasks. A `null` return value is treated as an empty collection.
- Anything else is treated as an error.

## Using a Task in a Build File

### Dynamic Properties

A `Task` has 4 'scopes' for properties. You can access these properties by name from the build file or by calling the `property(String)` method. You can change the value of these properties by calling the `setProperty(String, Object)` method.

- The `Task` object itself. This includes any property getters and setters declared by the `Task` implementation class. The properties of this scope are readable or writable based on the presence of the corresponding getter and setter methods.
- The extensions added to the task by plugins. Each extension is available as a read-only property with the same name as the extension.
- The extra properties of the task. Each task object maintains a map of additional properties. These are arbitrary name -> value pairs which you can use to dynamically add properties to a task object. Once defined, the properties of this scope are readable and writable.

### Parallel Execution

By default, tasks are not executed in parallel unless a task is waiting on asynchronous work and another task (which is not dependent) is ready to execute. Parallel execution can be enabled by the `--parallel` flag when the build is initiated. In parallel mode, the tasks of different projects (i.e. in a multi project build) are able to be executed in parallel.

- ## Nested Class Summary

  ## Nested classes/interfaces inherited from interface org.gradle.api.Named

  `Named.Namer`

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static final String`
  `TASK_ACTION`
  `static final String`
  `TASK_CONSTRUCTOR_ARGS`
  Constructor arguments for the Task
  `static final String`
  `TASK_DEPENDS_ON`
  `static final String`
  `TASK_DESCRIPTION`
  `static final String`
  `TASK_GROUP`
  `static final String`
  `TASK_NAME`
  `static final String`
  `TASK_OVERWRITE`
  `static final String`
  `TASK_TYPE`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `Task`
  `configure(Closure configureClosure)`
  Applies the statements of the closure against this task object.
  `Task`
  `dependsOn(Object... paths)`
  Adds the given dependencies to this task.
  `Task`
  `doFirst(Closure action)`
  Adds the given closure to the beginning of this task's action list.
  `Task`
  `doFirst(String actionName, Action<? super Task> action)`
  Adds the given `Action` to the beginning of this task's action list.
  `Task`
  `doFirst(Action<? super Task> action)`
  Adds the given `Action` to the beginning of this task's action list.
  `Task`
  `doLast(Closure action)`
  Adds the given closure to the end of this task's action list.
  `Task`
  `doLast(String actionName, Action<? super Task> action)`
  Adds the given `Action` to the end of this task's action list.
  `Task`
  `doLast(Action<? super Task> action)`
  Adds the given `Action` to the end of this task's action list.
  `void`
  `doNotTrackState(String reasonNotToTrackState)`
  Do not track the state of the task.
  `Task`
  `finalizedBy(Object... paths)`
  Adds the given finalizer tasks for this task.
  `List<Action<? super Task>>`
  `getActions()`
  Returns the sequence of `Action` objects which will be executed by this task, in the order of execution.
  `AntBuilder`
  `getAnt()`
  Returns the `AntBuilder` for this task.
  `Set<Object>`
  `getDependsOn()`
  Returns the dependencies of this task.
  `@Nullable String`
  `getDescription()`
  Returns the description of this task.
  `TaskDestroyables`
  `getDestroyables()`
  Returns the destroyables of this task.
  `boolean`
  `getDidWork()`
  Checks if the task actually did any work.
  `boolean`
  `getEnabled()`
  Returns if this task is enabled or not.
  `TaskDependency`
  `getFinalizedBy()`
  Returns tasks that finalize this task.
  `@Nullable String`
  `getGroup()`
  Returns the task group which this task belongs to.
  `TaskInputs`
  `getInputs()`
  Returns the inputs of this task.
  `TaskLocalState`
  `getLocalState()`
  Returns the local state of this task.
  `Logger`
  `getLogger()`
  Returns the logger for this task.
  `LoggingManager`
  `getLogging()`
  Returns the `LoggingManager` which can be used to receive logging and to control the standard output/error capture for this task.
  `TaskDependency`
  `getMustRunAfter()`
  Returns tasks that this task must run after.
  `String`
  `getName()`
  Returns the name of this task.
  `TaskOutputs`
  `getOutputs()`
  Returns the outputs of this task.
  `String`
  `getPath()`
  Returns the path of the task, which is a fully qualified name for the task.
  `Project`
  `getProject()`
  Returns the `Project` which this task belongs to.
  `TaskDependency`
  `getShouldRunAfter()`
  Returns tasks that this task should run after.
  `TaskState`
  `getState()`
  Returns the execution state of this task.
  `TaskDependency`
  `getTaskDependencies()`
  Returns a `TaskDependency` which contains all the tasks that this task depends on.
  `File`
  `getTemporaryDir()`
  Returns a directory which this task can use to write temporary files to.
  `Property<Duration>`
  `getTimeout()`
  The timeout of this task.
  `boolean`
  `hasProperty(String propertyName)`
  Determines if this task has the given property.
  `Task`
  `mustRunAfter(Object... paths)`
  Specifies that this task must run after all of the supplied tasks.
  `void`
  `notCompatibleWithConfigurationCache(String reason)`
  Specifies that this task is not compatible with the configuration cache.
  `void`
  `onlyIf(Closure<?> onlyIfClosure)`
  Execute the task only if the given closure returns true.
  `void`
  `onlyIf(String onlyIfReason, Spec<? super Task> onlyIfSpec)`
  Execute the task only if the given spec is satisfied.
  `void`
  `onlyIf(Spec<? super Task> onlyIfSpec)`
  Execute the task only if the given spec is satisfied.
  `@Nullable Object`
  `property(String propertyName)`
  Returns the value of the given property of this task.
  `void`
  `setActions(List<Action<? super Task>> actions)`
  Sets the sequence of `Action` objects which will be executed by this task.
  `void`
  `setDependsOn(Iterable<?> dependsOnTasks)`
  Sets the dependencies of this task.
  `void`
  `setDescription(@Nullable String description)`
  Sets a description for this task.
  `void`
  `setDidWork(boolean didWork)`
  Sets whether the task actually did any work.
  `void`
  `setEnabled(boolean enabled)`
  Set the enabled state of a task.
  `void`
  `setFinalizedBy(Iterable<?> finalizedBy)`
  Specifies the set of finalizer tasks for this task.
  `void`
  `setGroup(@Nullable String group)`
  Sets the task group which this task belongs to.
  `void`
  `setMustRunAfter(Iterable<?> mustRunAfter)`
  Specifies the set of tasks that this task must run after.
  `void`
  `setOnlyIf(Closure<?> onlyIfClosure)`
  Execute the task only if the given closure returns true.
  `void`
  `setOnlyIf(String onlyIfReason, Spec<? super Task> onlyIfSpec)`
  Execute the task only if the given spec is satisfied.
  `void`
  `setOnlyIf(Spec<? super Task> onlyIfSpec)`
  Execute the task only if the given spec is satisfied.
  `void`
  `setProperty(String name, Object value)`
  Sets a property of this task.
  `void`
  `setShouldRunAfter(Iterable<?> shouldRunAfter)`
  Specifies the set of tasks that this task should run after.
  `TaskDependency`
  `shouldRunAfter(Object... paths)`
  Specifies that this task should run after all of the supplied tasks.
  `void`
  `usesService(Provider<? extends BuildService<?>> service)`
  Registers a `BuildService` that is used by this task so `its constraint on parallel execution` can be honored.

  ### Methods inherited from interface java.lang.Comparable

  `compareTo`

  ### Methods inherited from interface org.gradle.api.plugins.ExtensionAware

  `getExtensions`

- ## Field Details

  - ### TASK_NAME

    static final String TASK_NAME
    See Also:
      - Constant Field Values

  - ### TASK_DESCRIPTION

    static final String TASK_DESCRIPTION
    See Also:
      - Constant Field Values

  - ### TASK_GROUP

    static final String TASK_GROUP
    See Also:
      - Constant Field Values

  - ### TASK_TYPE

    static final String TASK_TYPE
    See Also:
      - Constant Field Values

  - ### TASK_DEPENDS_ON

    static final String TASK_DEPENDS_ON
    See Also:
      - Constant Field Values

  - ### TASK_OVERWRITE

    static final String TASK_OVERWRITE
    See Also:
      - Constant Field Values

  - ### TASK_ACTION

    static final String TASK_ACTION
    See Also:
      - Constant Field Values

  - ### TASK_CONSTRUCTOR_ARGS

    static final String TASK_CONSTRUCTOR_ARGS
    Constructor arguments for the Task
    Since:
      4.7
    See Also:
      - Constant Field Values

- ## Method Details

  - ### getName

    @Internal String getName()

    Returns the name of this task. The name uniquely identifies the task within its `Project`.

    Specified by:
      `getName` in interface `Named`
    Returns:
      The name of the task. Never returns null.

  - ### getProject

    @Internal Project getProject()

    Returns the `Project` which this task belongs to.

    Calling this method from a task action is not supported when configuration caching is enabled.

    Returns:
      The project this task belongs to. Never returns null.

  - ### getActions

    @Internal List<Action<? super Task>> getActions()

    Returns the sequence of `Action` objects which will be executed by this task, in the order of execution.

    Returns:
      The task actions in the order they are executed. Returns an empty list if this task has no actions.

  - ### setActions

    void setActions(List<Action<? super Task>> actions)

    Sets the sequence of `Action` objects which will be executed by this task.

    Parameters:
      `actions` - The actions.

  - ### getTaskDependencies

    @Internal TaskDependency getTaskDependencies()

    Returns a `TaskDependency` which contains all the tasks that this task depends on.

    Calling this method from a task action is not supported when configuration caching is enabled.

    Returns:
      The dependencies of this task. Never returns null.

  - ### getDependsOn

    @Internal Set<Object> getDependsOn()

    Returns the dependencies of this task.

    Returns:
      The dependencies of this task. Returns an empty set if this task has no dependencies.

  - ### setDependsOn

    void setDependsOn(Iterable<?> dependsOnTasks)

    Sets the dependencies of this task. See here for a description of the types of objects which can be used as task dependencies.

    Parameters:
      `dependsOnTasks` - The set of task paths.

  - ### dependsOn

    Task dependsOn(Object... paths)

    Adds the given dependencies to this task. See here for a description of the types of objects which can be used as task dependencies.

    Parameters:
      `paths` - The dependencies to add to this task.
    Returns:
      the task object this method is applied to

  - ### onlyIf

    void onlyIf(Closure<?> onlyIfClosure)

    Execute the task only if the given closure returns true. The closure will be evaluated at task execution time, not during configuration. The closure will be passed a single parameter, this task. If the closure returns false, the task will be skipped.

    You may add multiple such predicates. The task is skipped if any of the predicates return false.

    Typical usage:`myTask.onlyIf { isProductionEnvironment() }`

    Parameters:
      `onlyIfClosure` - code to execute to determine if task should be run

  - ### doNotTrackState

    void doNotTrackState(String reasonNotToTrackState)
    Do not track the state of the task.

    Instructs Gradle to treat the task as untracked.

    Since:
      7.3
    See Also:
      - `UntrackedTask`

  - ### notCompatibleWithConfigurationCache

    void notCompatibleWithConfigurationCache(String reason)
    Specifies that this task is not compatible with the configuration cache.

    Configuration cache problems found in the task will be reported but won't cause the build to fail.

    The presence of incompatible tasks in the task graph will cause the configuration state to be discarded at the end of the build unless the global `configuration-cache-problems` option is set to `warn`, in which case the configuration state would still be cached in a best-effort manner as usual for the option.

    IMPORTANT: This setting doesn't affect how Gradle treats problems found in other tasks also present in the task graph and those could still cause the build to fail.

    Since:
      7.4

  - ### onlyIf

    void onlyIf(Spec<? super Task> onlyIfSpec)

    Execute the task only if the given spec is satisfied. The spec will be evaluated at task execution time, not during configuration. If the Spec is not satisfied, the task will be skipped.

    You may add multiple such predicates. The task is skipped if any of the predicates return false.

    Typical usage (from Java):

        myTask.onlyIf(new Spec<Task>() {
            boolean isSatisfiedBy(Task task) {
               return isProductionEnvironment();
            }
         });

    Parameters:
      `onlyIfSpec` - specifies if a task should be run

  - ### onlyIf

    @Incubating void onlyIf(String onlyIfReason, Spec<? super Task> onlyIfSpec)

    Execute the task only if the given spec is satisfied. The spec will be evaluated at task execution time, not during configuration. If the Spec is not satisfied, the task will be skipped.

    You may add multiple such predicates. The task is skipped if any of the predicates return false.

    Typical usage (from Java):

        myTask.onlyIf("run only in production environment", new Spec<Task>() {
            boolean isSatisfiedBy(Task task) {
               return isProductionEnvironment();
            }
         });

    Parameters:
      `onlyIfReason` - specifies the reason for a task to run, which is used for logging
      `onlyIfSpec` - specifies if a task should be run
    Since:
      7.6

  - ### setOnlyIf

    void setOnlyIf(Closure<?> onlyIfClosure)

    Execute the task only if the given closure returns true. The closure will be evaluated at task execution time, not during configuration. The closure will be passed a single parameter, this task. If the closure returns false, the task will be skipped.

    The given predicate replaces all such predicates for this task.

    Parameters:
      `onlyIfClosure` - code to execute to determine if task should be run

  - ### setOnlyIf

    void setOnlyIf(Spec<? super Task> onlyIfSpec)

    Execute the task only if the given spec is satisfied. The spec will be evaluated at task execution time, not during configuration. If the Spec is not satisfied, the task will be skipped.

    The given predicate replaces all such predicates for this task.

    Parameters:
      `onlyIfSpec` - specifies if a task should be run

  - ### setOnlyIf

    @Incubating void setOnlyIf(String onlyIfReason, Spec<? super Task> onlyIfSpec)

    Execute the task only if the given spec is satisfied. The spec will be evaluated at task execution time, not during configuration. If the Spec is not satisfied, the task will be skipped.

    The given predicate replaces all such predicates for this task.

    Parameters:
      `onlyIfReason` - specifies the reason for a task to run, which is used for logging
      `onlyIfSpec` - specifies if a task should be run
    Since:
      7.6

  - ### getState

    @Internal TaskState getState()
    Returns the execution state of this task. This provides information about the execution of this task, such as whether it has executed, been skipped, has failed, etc.
    Returns:
      The execution state of this task. Never returns null.

  - ### setDidWork

    void setDidWork(boolean didWork)
    Sets whether the task actually did any work. Most built-in tasks will set this automatically, but it may be useful to manually indicate this for custom user tasks.
    Parameters:
      `didWork` - indicates if the task did any work

  - ### getDidWork

    @Internal boolean getDidWork()

    Checks if the task actually did any work. Even if a Task executes, it may determine that it has nothing to do. For example, a compilation task may determine that source files have not changed since the last time a the task was run.

    Returns:
      true if this task did any work

  - ### getPath

    @Internal String getPath()

    Returns the path of the task, which is a fully qualified name for the task. The path of a task is the path of its `Project` plus the name of the task, separated by `:`.

    Returns:
      the path of the task, which is equal to the path of the project plus the name of the task.

  - ### doFirst

    Task doFirst(Action<? super Task> action)

    Adds the given `Action` to the beginning of this task's action list.

    Parameters:
      `action` - The action to add
    Returns:
      the task object this method is applied to

  - ### doFirst

    Task doFirst(@DelegatesTo(Task.class) Closure action)

    Adds the given closure to the beginning of this task's action list. The closure is passed this task as a parameter when executed.

    Parameters:
      `action` - The action closure to execute.
    Returns:
      This task.

  - ### doFirst

    Task doFirst(String actionName, Action<? super Task> action)

    Adds the given `Action` to the beginning of this task's action list.

    Parameters:
      `actionName` - An arbitrary string that is used for logging.
      `action` - The action to add
    Returns:
      the task object this method is applied to
    Since:
      4.2

  - ### doLast

    Task doLast(Action<? super Task> action)

    Adds the given `Action` to the end of this task's action list.

    Parameters:
      `action` - The action to add.
    Returns:
      the task object this method is applied to

  - ### doLast

    Task doLast(String actionName, Action<? super Task> action)

    Adds the given `Action` to the end of this task's action list.

    Parameters:
      `actionName` - An arbitrary string that is used for logging.
      `action` - The action to add.
    Returns:
      the task object this method is applied to
    Since:
      4.2

  - ### doLast

    Task doLast(@DelegatesTo(Task.class) Closure action)

    Adds the given closure to the end of this task's action list. The closure is passed this task as a parameter when executed.

    Parameters:
      `action` - The action closure to execute.
    Returns:
      This task.

  - ### getEnabled

    @Internal boolean getEnabled()

    Returns if this task is enabled or not.

    See Also:
      - `setEnabled(boolean)`

  - ### setEnabled

    void setEnabled(boolean enabled)

    Set the enabled state of a task. If a task is disabled none of the its actions are executed. Note that disabling a task does not prevent the execution of the tasks which this task depends on.

    Parameters:
      `enabled` - The enabled state of this task (true or false)

  - ### configure

    Task configure(Closure configureClosure)

    Applies the statements of the closure against this task object. The delegate object for the closure is set to this task.

    Parameters:
      `configureClosure` - The closure to be applied (can be null).
    Returns:
      This task

  - ### getAnt

    @Internal AntBuilder getAnt()

    Returns the `AntBuilder` for this task. You can use this in your build file to execute ant tasks.

    Returns:
      The `AntBuilder`

  - ### getLogger

    @Internal Logger getLogger()

    Returns the logger for this task. You can use this in your build file to write log messages.

    Returns:
      The logger. Never returns null.

  - ### getLogging

    @Internal LoggingManager getLogging()
    Returns the `LoggingManager` which can be used to receive logging and to control the standard output/error capture for this task. By default, System.out is redirected to the Gradle logging system at the QUIET log level, and System.err is redirected at the ERROR log level.
    Returns:
      the LoggingManager. Never returns null.

  - ### property

    @Nullable Object property(String propertyName) throws MissingPropertyException

    Returns the value of the given property of this task. This method locates a property as follows:

    1. If this task object has a property with the given name, return the value of the property.
    2. If this task has an extension with the given name, return the extension.
    3. If this task has an extra property with the given name, return the value of the property.
    4. If not found, throw `MissingPropertyException`
    Parameters:
      `propertyName` - The name of the property.
    Returns:
      The value of the property, possibly null.
    Throws:
      `MissingPropertyException` - When the given property is unknown.

  - ### hasProperty

    boolean hasProperty(String propertyName)

    Determines if this task has the given property. See here for details of the properties which are available for a task.

    Parameters:
      `propertyName` - The name of the property to locate.
    Returns:
      True if this project has the given property, false otherwise.

  - ### setProperty

    void setProperty(String name, Object value) throws MissingPropertyException

    Sets a property of this task. This method searches for a property with the given name in the following locations, and sets the property on the first location where it finds the property.

    1. The task object itself. For example, the `enabled` project property.
    2. The task's extra properties.
    If the property is not found, a `MissingPropertyException` is thrown.
    Parameters:
      `name` - The name of the property
      `value` - The value of the property
    Throws:
      `MissingPropertyException`

  - ### getDescription

    @Internal @Nullable String getDescription()
    Returns the description of this task.
    Returns:
      the description. May return null.

  - ### setDescription

    void setDescription(@Nullable String description)
    Sets a description for this task. This should describe what the task does to the user of the build. The description will be displayed when `gradle tasks` is called.
    Parameters:
      `description` - The description of the task. Might be null.

  - ### getGroup

    @Internal @Nullable String getGroup()
    Returns the task group which this task belongs to. The task group is used in reports and user interfaces to group related tasks together when presenting a list of tasks to the user.
    Returns:
      The task group for this task. Might be null.

  - ### setGroup

    void setGroup(@Nullable String group)
    Sets the task group which this task belongs to. The task group is used in reports and user interfaces to group related tasks together when presenting a list of tasks to the user.
    Parameters:
      `group` - The task group for this task. Can be null.

  - ### getInputs

    @Internal TaskInputs getInputs()

    Returns the inputs of this task.

    Returns:
      The inputs. Never returns null.

  - ### getOutputs

    @Internal TaskOutputs getOutputs()

    Returns the outputs of this task.

    Returns:
      The outputs. Never returns null.

  - ### getDestroyables

    @Internal TaskDestroyables getDestroyables()

    Returns the destroyables of this task.

    Returns:
      The destroyables. Never returns null.
    Since:
      4.0

  - ### getLocalState

    @Internal TaskLocalState getLocalState()
    Returns the local state of this task.
    Since:
      4.3

  - ### getTemporaryDir

    @Internal File getTemporaryDir()

    Returns a directory which this task can use to write temporary files to. Each task instance is provided with a separate temporary directory. There are no guarantees that the contents of this directory will be kept beyond the execution of the task.

    Returns:
      The directory. Never returns null. The directory will already exist.

  - ### mustRunAfter

    Task mustRunAfter(Object... paths)

    Specifies that this task must run after all of the supplied tasks.

         task taskY {
             mustRunAfter "taskX"
         }

    For each supplied task, this action adds a task 'ordering', and does not specify a 'dependency' between the tasks. As such, it is still possible to execute 'taskY' without first executing the 'taskX' in the example.

    See here for a description of the types of objects which can be used to specify an ordering relationship.

    Parameters:
      `paths` - The tasks this task must run after.
    Returns:
      the task object this method is applied to

  - ### setMustRunAfter

    void setMustRunAfter(Iterable<?> mustRunAfter)

    Specifies the set of tasks that this task must run after.

         task taskY {
             mustRunAfter = ["taskX1", "taskX2"]
         }

    For each supplied task, this action adds a task 'ordering', and does not specify a 'dependency' between the tasks. As such, it is still possible to execute 'taskY' without first executing the 'taskX' in the example.

    See here for a description of the types of objects which can be used to specify an ordering relationship.

    Parameters:
      `mustRunAfter` - The set of task paths this task must run after.

  - ### getMustRunAfter

    @Internal TaskDependency getMustRunAfter()

    Returns tasks that this task must run after.

    Returns:
      The tasks that this task must run after. Returns an empty set if this task has no tasks it must run after.

  - ### finalizedBy

    Task finalizedBy(Object... paths)

    Adds the given finalizer tasks for this task.

         task taskY {
             finalizedBy "taskX"
         }

    See here for a description of the types of objects which can be used to specify a finalizer task.

    Parameters:
      `paths` - The tasks that finalize this task.
    Returns:
      the task object this method is applied to

  - ### setFinalizedBy

    void setFinalizedBy(Iterable<?> finalizedBy)

    Specifies the set of finalizer tasks for this task.

         task taskY {
             finalizedBy = ["taskX1", "taskX2"]
         }

    See here for a description of the types of objects which can be used to specify a finalizer task.

    Parameters:
      `finalizedBy` - The tasks that finalize this task.

  - ### getFinalizedBy

    @Internal TaskDependency getFinalizedBy()

    Returns tasks that finalize this task.

    Returns:
      The tasks that finalize this task. Returns an empty set if there are no finalising tasks for this task.

  - ### shouldRunAfter

    TaskDependency shouldRunAfter(Object... paths)

    Specifies that this task should run after all of the supplied tasks.

         task taskY {
             shouldRunAfter "taskX"
         }

    For each supplied task, this action adds a task 'ordering', and does not specify a 'dependency' between the tasks. As such, it is still possible to execute 'taskY' without first executing the 'taskX' in the example.

    See here for a description of the types of objects which can be used to specify an ordering relationship.

    Parameters:
      `paths` - The tasks this task should run after.
    Returns:
      the task object this method is applied to

  - ### setShouldRunAfter

    void setShouldRunAfter(Iterable<?> shouldRunAfter)

    Specifies the set of tasks that this task should run after.

         task taskY {
             shouldRunAfter = ["taskX1", "taskX2"]
         }

    For each supplied task, this action adds a task 'ordering', and does not specify a 'dependency' between the tasks. As such, it is still possible to execute 'taskY' without first executing the 'taskX' in the example.

    See here for a description of the types of objects which can be used to specify an ordering relationship.

    Parameters:
      `shouldRunAfter` - The set of task paths this task should run after.

  - ### getShouldRunAfter

    @Internal TaskDependency getShouldRunAfter()

    Returns tasks that this task should run after.

    Returns:
      The tasks that this task should run after. Returns an empty set if this task has no tasks it must run after.

  - ### getTimeout

    @Internal Property<Duration> getTimeout()

    The timeout of this task.

           task myTask {
               timeout = Duration.ofMinutes(10)
           }

    The Thread executing this task will be interrupted if the task takes longer than the specified amount of time to run. In order for a task to work properly with this feature, it needs to react to interrupts and must clean up any resources it opened.

    By default, tasks never time out.

    Since:
      5.0

  - ### usesService

    void usesService(Provider<? extends BuildService<?>> service)
    Registers a `BuildService` that is used by this task so `its constraint on parallel execution` can be honored.

    This is not necessary for task properties declared as `ServiceReference`s.

    Parameters:
      `service` - The service provider.
    Since:
      6.1
    See Also:
      - `ServiceReference`