| Package | Description | 
|---|---|
| java.util.concurrent | Utility classes commonly useful in concurrent programming. | 
| Modifier and Type | Method and Description | 
|---|---|
| Phaser | Phaser. getParent()Returns the parent of this phaser, or  nullif none. | 
| Phaser | Phaser. getRoot()Returns the root ancestor of this phaser, which is the same as
 this phaser if it has no parent. | 
| Constructor and Description | 
|---|
| Phaser(Phaser parent)Equivalent to  Phaser(parent, 0). | 
| Phaser(Phaser parent,
      int parties)Creates a new phaser with the given parent and number of
 registered unarrived parties. | 
 Submit a bug or feature 
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
 Copyright © 1993, 2025, Oracle and/or its affiliates.  All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.