OsSupport Connector is free cross platform global hotkey library for Java.
The library supports global hotkeys as well as sending key commands to the OS in order to simulate a key press.
Other OS specific features can be added over time. OsSupport uses the HawtJni JNI generator to generate the native part.
OsSupport is used in Simidude, the cross platform network clipboard. OsSupport is licensed under the Apache 2.0 license.
Detailed instructions on how to install and use the OsSupport Connector utility on your Mac are available HERE.