# ThreadPoolExecutor.CallerRunsPolicy

Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Summary:[Ctors](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor.CallerRunsPolicy#pubctors)\|[Methods](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor.CallerRunsPolicy#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor.CallerRunsPolicy#inhmethods)  

# ThreadPoolExecutor.CallerRunsPolicy

`
public
static


class
ThreadPoolExecutor.CallerRunsPolicy
`  
`

extends `[Object](https://developer.android.com/reference/java/lang/Object)`


``


implements

`[RejectedExecutionHandler](https://developer.android.com/reference/java/util/concurrent/RejectedExecutionHandler)`


`

|---|----------------------------------------------------------|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy |

<br />

*** ** * ** ***

A handler for rejected tasks that runs the rejected task directly in the calling thread of the`execute`method, unless the executor has been shut down, in which case the task is discarded.

## Summary

|                                                                             ### Public constructors                                                                             ||
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
| ` `[CallerRunsPolicy](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor.CallerRunsPolicy#CallerRunsPolicy())`() ` Creates a`CallerRunsPolicy`. |

|                                                                                                                                                                                                                                                        ### Public methods                                                                                                                                                                                                                                                         ||
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` void` | ` `[rejectedExecution](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor.CallerRunsPolicy#rejectedExecution(java.lang.Runnable,%20java.util.concurrent.ThreadPoolExecutor))`(`[Runnable](https://developer.android.com/reference/java/lang/Runnable)` r, `[ThreadPoolExecutor](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor)` e) ` Executes task r in the caller's thread, unless the executor has been shut down, in which case the task is discarded. |

| ### Inherited methods |
|-----------------------|---|
| From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object)          | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object.                                                                                                                                                      | | ` boolean`                                                                     | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one.                                           | | ` void`                                                                        | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.                                                          | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`<?>` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this`Object`.                                                                                                                                                | | ` int`                                                                         | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object.                                                                                                                                                 | | ` final void`                                                                  | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor.                                                                                                                            | | ` final void`                                                                  | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor.                                                                                                                         | | ` `[String](https://developer.android.com/reference/java/lang/String)          | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object.                                                                                                                                            | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed. | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed.                   | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*.                                                                                             | ||
| From interface` `[java.util.concurrent.RejectedExecutionHandler](https://developer.android.com/reference/java/util/concurrent/RejectedExecutionHandler)` ` |------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` abstract void` | ` `[rejectedExecution](https://developer.android.com/reference/java/util/concurrent/RejectedExecutionHandler#rejectedExecution(java.lang.Runnable,%20java.util.concurrent.ThreadPoolExecutor))`(`[Runnable](https://developer.android.com/reference/java/lang/Runnable)` r, `[ThreadPoolExecutor](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor)` executor) ` Method that may be invoked by a[ThreadPoolExecutor](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor)when[execute](https://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor#execute(java.lang.Runnable))cannot accept a task. | ||

## Public constructors

### CallerRunsPolicy

Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public CallerRunsPolicy ()
```

Creates a`CallerRunsPolicy`.

<br />

## Public methods

### rejectedExecution

Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public void rejectedExecution (Runnable r, 
                ThreadPoolExecutor e)
```

Executes task r in the caller's thread, unless the executor has been shut down, in which case the task is discarded.

<br />

|                                   Parameters                                   ||
|-----|---------------------------------------------------------------------------|
| `r` | `Runnable`: the runnable task requested to be executed <br />             |
| `e` | `ThreadPoolExecutor`: the executor attempting to execute this task <br /> |