FIX: devel/jdk/1.7 throws an exception in headless mode

[Alexey Suslikov]

Hello po...@.

$ uname -a
OpenBSD localhost.my.domain 4.6 GENERIC.MP#120 amd64

$ /usr/local/jdk-1.7.0/bin/java -version
openjdk version "1.7.0-internal"
OpenJDK Runtime Environment (build 1.7.0-internal-robert_2009_08_08_14_04-b00)
OpenJDK 64-Bit Server VM (build 16.0-b03, mixed mode)

$ cat Failure.java
public class Failure {
  public static void main(String[] args) {
    java.awt.KeyboardFocusManager.getCurrentKeyboardFocusManager();
  }
}

$ /usr/local/jdk-1.7.0/bin/java -Djava.awt.headless=true Failure
Exception in thread "main" java.awt.HeadlessException
        at 
sun.awt.HeadlessToolkit.createKeyboardFocusManagerPeer(HeadlessToolkit.java:184)
        at java.awt.KeyboardFocusManager.initPeer(KeyboardFocusManager.java:454)
        at java.awt.KeyboardFocusManager.<init>(KeyboardFocusManager.java:448)
        at 
java.awt.DefaultKeyboardFocusManager.<init>(DefaultKeyboardFocusManager.java:64)
        at 
java.awt.KeyboardFocusManager.getCurrentKeyboardFocusManager(KeyboardFocusManager.java:218)
        at 
java.awt.KeyboardFocusManager.getCurrentKeyboardFocusManager(KeyboardFocusManager.java:209)
        at Failure.main(Failure.java:3)

Known as http://bugs.sun.com/view_bug.do?bug_id=6833019

Fix 
http://hg.openjdk.java.net/jdk7/awt/jdk/raw-diff/97ece6b3d84f/src/share/classes/sun/awt/HeadlessToolkit.java

Alexey