Fix concurrency bug of GLProfile initialization ; Fix SharedResourceRunner 'dead' thread (Applets)

GLDrawableFactory:
  - clarify: public getWasSharedContextCreated(..) -> protected createSharedResource(..)
  - add: getSharesResourceThread()

GLProfile:
  - proper locking of initSingletion(..) path:
    - Use RecursiveThreadGroupLock and add/remove GLDrawableFactory's sharesResourceThread
      while creating it's the sharedResource.
      This simplifies and fixes GLProfile's locking code.

  - Fix and simplify initSingleton(boolean) API doc - mark it deprecated.

  - Add initSingleton() for controlled initialization only, pairing w/ shutdown(..)

Remove initSingleton(boolean) calls in code and test!

+++

Fix SharedResourceRunner 'dead' thread (Applets)
  In Applets, stopping an Applet makes the browser Java plugin interrupting
  and killing all related threads, including our SharedResourceRunner thread.

  - Validate whether the shared resource thread is alive

  - Catch interruption in shared resource thread and assume it's a kill signal

  - releaseSharedResource: clear devicesTried set

1 files changed, 0 insertions, 5 deletions

diff --git a/src/newt/classes/jogamp/newt/driver/android/NewtBaseActivity.java b/src/newt/classes/jogamp/newt/driver/android/NewtBaseActivity.java
index a7326d916..f7c05cd45 100644
--- a/src/newt/classes/jogamp/newt/driver/android/NewtBaseActivity.java
+++ b/src/newt/classes/jogamp/newt/driver/android/NewtBaseActivity.java
@@ -27,8 +27,6 @@
  */
 package jogamp.newt.driver.android;
 
-import javax.media.opengl.GLProfile;
-
 import com.jogamp.newt.Window;
 import com.jogamp.opengl.util.Animator;
 
@@ -100,9 +98,6 @@ public class NewtBaseActivity extends Activity {
            jogamp.common.os.android.StaticContext.setContext(extActivity.getApplicationContext());
        }
        extActivity.getWindow();
-
-       // init GLProfile
-       GLProfile.initSingleton(true);       
    }
    
    @Override