# Exception TaskAlreadyExistsException (5.0.3)

    public class TaskAlreadyExistsException extends RuntimeException

One or more task names already exists in the queue.

## Inherited Members

[Object.clone()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--) [Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-) [Object.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--) [Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) [Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--) [Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) [Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) [Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) [Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) [Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-) [Throwable.addSuppressed(Throwable)](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#addSuppressed-java.lang.Throwable-) [Throwable.fillInStackTrace()](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#fillInStackTrace--) [Throwable.getCause()](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#getCause--) [Throwable.getLocalizedMessage()](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#getLocalizedMessage--) [Throwable.getMessage()](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#getMessage--) [Throwable.getStackTrace()](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#getStackTrace--) [Throwable.getSuppressed()](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#getSuppressed--) [Throwable.initCause(Throwable)](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#initCause-java.lang.Throwable-) [Throwable.printStackTrace()](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#printStackTrace--) [Throwable.printStackTrace(PrintStream)](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#printStackTrace-java.io.PrintStream-) [Throwable.printStackTrace(PrintWriter)](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#printStackTrace-java.io.PrintWriter-) [Throwable.setStackTrace(StackTraceElement\[\])](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#setStackTrace-java.lang.StackTraceElement[]-) [Throwable.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#toString--)

## Constructors

### TaskAlreadyExistsException(String detail)

    public TaskAlreadyExistsException(String detail)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `detail` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

## Methods

### getTaskNames()

    public List<String> getTaskNames()

Returns a list of the names of the tasks that already exist, in the same order as they were
given in the call to add(). Only some of the methods that throw a `
TaskAlreadyExistsException` will populate this list. Otherwise it will be an empty list.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/util/List.html<https://docs.oracle.com/javase/8/docs/api/java/lang/String.html>` |   |