Enhance Bootsrapping of JOGL around 37% - 40% (1st start in new JVM) - GLProfile and GLContext*

GLProfile: Enhance bootsrapping performance of loading GL*Impl class
  - Offthread classloading of all GL*Impl via reflection at startup
    reduces startup time here around 12% (800ms down to 700ms).

GLContext*: Enhance bootsrapping performance of querying available GL profiles
  - Add PROFILE_ALIASING mode, defaults to true - can be disabled w/ property 'jogl.debug.GLContext.NoProfileAliasing'
  - PROFILE_ALIASING:
      If true (default), bootstrapping the available GL profiles
      will use the highest compatible GL context for each profile,
      hence skipping querying lower profiles if a compatible higher one is found.
        Linux x86_64 - Nvidia: 28%,  700ms down to 500ms
        Linux x86_64 - AMD   : 40%, 1500ms down to 900ms

- GL*Impl:
  - make fields final: glProfile, _context, buffer*Tracker and glStateTracker
  - allow null _context/glProfile in initialization (bootstrapping)

- JoglVersion.getDefaultOpenGLInfo(..)
  - add arg: 'boolean withCapabilitiesInfo', allowing to suppres the list of caps

1 files changed, 12 insertions, 6 deletions

diff --git a/make/config/jogl/gl-impl-CustomJavaCode-gles2.java b/make/config/jogl/gl-impl-CustomJavaCode-gles2.java
index ea6544d29..a4976f5ea 100644
--- a/make/config/jogl/gl-impl-CustomJavaCode-gles2.java
+++ b/make/config/jogl/gl-impl-CustomJavaCode-gles2.java
@@ -4,9 +4,15 @@ private boolean inBeginEndPair;
 
 public GLES2Impl(GLProfile glp, GLContextImpl context) {
   this._context = context; 
-  this.bufferSizeTracker  = context.getBufferSizeTracker();
-  this.bufferStateTracker = context.getBufferStateTracker();
-  this.glStateTracker     = context.getGLStateTracker();
+  if(null != context) {
+      this.bufferSizeTracker  = context.getBufferSizeTracker();
+      this.bufferStateTracker = context.getBufferStateTracker();
+      this.glStateTracker     = context.getGLStateTracker();
+  } else {
+      this.bufferSizeTracker  = null;
+      this.bufferStateTracker = null;
+      this.glStateTracker     = null;
+  }
   this.glProfile = glp;
 }
 
@@ -110,9 +116,9 @@ public final GL2GL3 getGL2GL3() throws GLException {
 // Helpers for ensuring the correct amount of texture data
 //
 
-private GLBufferSizeTracker  bufferSizeTracker;
-private GLBufferStateTracker bufferStateTracker;
-private GLStateTracker       glStateTracker;
+private final GLBufferSizeTracker  bufferSizeTracker;
+private final GLBufferStateTracker bufferStateTracker;
+private final GLStateTracker       glStateTracker;
 
 private boolean bufferObjectExtensionsInitialized = false;
 private boolean haveOESFramebufferObject;