JDK-7159266 : [macosx] ApplicationDelegate should not be set in the headless mode
  • Type: Bug
  • Component: client-libs
  • Sub-Component: java.awt
  • Affected Version: 7
  • Priority: P2
  • Status: Closed
  • Resolution: Fixed
  • OS: os_x
  • CPU: generic
  • Submitted: 2012-04-05
  • Updated: 2012-05-04
  • Resolved: 2012-04-17
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JDK 7 JDK 8
7u4 b20Fixed 8Fixed
Related Reports
Relates :  
JDK-7132692 - [macosx] Class com.apple.eawt not functioning
Description
The following Java FX bug describes the issue:

http://javafx-jira.kenai.com/browse/RT-20819

In a nutshell, starting from JDK 7u4 b16, a Java FX app on the Mac will hang if it's started with the software J2D rendering pipeline.
Comments
EVALUATION This is a regression of 7132692. To fix this issue we should not set an ApplicationDelegate when AWT is started in the headless mode. The ApplicationDleegate provides an implementation for com.apple.eawt API. All the features of the API (e.g. assiging an action for a system menu item Preferences in the Mac menu bar, etc.) don't make any sense in the headless mode anyway.
05-04-2012