All Java3D threads set to daemon

Bug 1111 - Java3D does not dispose correctly after use

Note there is a strong possibility that this could have side effects
particularly in headless environments.

However a daemon nature is more correct and will allow applications to
exit gracefully and when expected.

In testing normal swing operations can cause non-exiting.
E.g. 
JFrame f = new JFrame();
f.pack();

will not exit unless 
f.dispose(); 
is called. This is unrelated to Java3D.

2 files changed, 4 insertions, 0 deletions

diff --git a/src/main/java/org/jogamp/java3d/MasterControl.java b/src/main/java/org/jogamp/java3d/MasterControl.java
index d5a9684..b60710c 100644
--- a/src/main/java/org/jogamp/java3d/MasterControl.java
+++ b/src/main/java/org/jogamp/java3d/MasterControl.java
@@ -1686,6 +1686,7 @@ private static String getProperty(final String prop) {
 		       synchronized (rootThreadGroup) {
                            s.updateThread = new StructureUpdateThread(
                    	        rootThreadGroup, s, s.threadType);
+               s.updateThread.setDaemon(true);
 			   s.updateThread.setPriority(threadPriority);
 		       }
 		       return null;
@@ -2010,6 +2011,7 @@ private static String getProperty(final String prop) {
               public Object run() {
 		  synchronized (rootThreadGroup) {
 		      timerThread = new TimerThread(rootThreadGroup);
+		      timerThread.setDaemon(true);
 		      timerThread.setPriority(threadPriority);
 		  }
 		  return null;
@@ -2024,6 +2026,7 @@ private static String getProperty(final String prop) {
               public Object run() {
 		  synchronized (rootThreadGroup) {
 		      notificationThread = new NotificationThread(rootThreadGroup);
+		      notificationThread.setDaemon(true);
 		      notificationThread.setPriority(threadPriority);
 		  }
 		  return null;
diff --git a/src/main/java/org/jogamp/java3d/MasterControlThread.java b/src/main/java/org/jogamp/java3d/MasterControlThread.java
index a27ce7f..914e506 100644
--- a/src/main/java/org/jogamp/java3d/MasterControlThread.java
+++ b/src/main/java/org/jogamp/java3d/MasterControlThread.java
@@ -50,6 +50,7 @@ class MasterControlThread extends Thread {
 
     MasterControlThread(ThreadGroup threadGroup) {
 	super(threadGroup, "");
+	setDaemon(true);
 	setName("J3D-MasterControl-" + getInstanceNum());
 	VirtualUniverse.mc.createMCThreads();
 	this.start();