This project aims to implement GNTP as described here.

Features

• Async I/O with JBoss Netty
• Registration with all supported attributes
• Notification with all supported attributes
• Password authentication
• Request encryption (Growl for Windows doesn't support response encryption yet)
• Click, close and timeout callbacks support
• Custom and application specific headers
• Automatic retry of registration and notification attempts
• Available at Maven Central Repository

Maven dependency declaration

<dependency> <groupId>com.google.code.jgntp</groupId> <artifactId>jgntp</artifactId> <version>1.2.1</version> </dependency>

How to use

Take a look at GntpClientIntegrationTest

Version 1.2.1 fixes issue 1 about not receiving callbacks from Growl.