Findbugs.not-written.null: Fix referencing non-written fields (never written or due branching)

- AWT TextRenderer: Add throw new InternalError("fontRenderContext never initialized!"); FIXME!
- GLContextImpl.hasFBOImpl(): Fix serious NPE issue if extCache is null
- GLDrawableFactoryImpl.createOffscreenDrawableImpl(..):
  - Fix NPE issue w/ null drawable
  - Fix resetting GammaRamp by ensuring originalGammaRamp will be set at 1st setGammaRamp(..)

- AndroidGLMediaPlayerAPI14: Fix NPE: Use already resolved local referenced
- EGLDrawableFactory: Fix NPE: Only operate on non null surface!
- ALAudioSink.dequeueBuffer(..): Only resolve releasedBuffer elements if not null
-

1 files changed, 4 insertions, 1 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/util/awt/TextRenderer.java b/src/jogl/classes/com/jogamp/opengl/util/awt/TextRenderer.java
index 660d3bc6a..1c9eacec0 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/awt/TextRenderer.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/awt/TextRenderer.java
@@ -1582,7 +1582,7 @@ public class TextRenderer {
 
     class GlyphProducer {
         final int undefined = -2;
-        FontRenderContext fontRenderContext;
+        FontRenderContext fontRenderContext = null; // FIXME: Never initialized!
         List<Glyph> glyphsOutput = new ArrayList<Glyph>();
         HashMap<String, GlyphVector> fullGlyphVectorCache = new HashMap<String, GlyphVector>();
         HashMap<Character, GlyphMetrics> glyphMetricsCache = new HashMap<Character, GlyphMetrics>();
@@ -1675,6 +1675,9 @@ public class TextRenderer {
 
             // Have to do this the hard / uncached way
             singleUnicode[0] = unicodeID;
+            if( null == fontRenderContext ) { // FIXME: Never initialized!
+                throw new InternalError("fontRenderContext never initialized!");
+            }
             final GlyphVector gv = font.createGlyphVector(fontRenderContext,
                                                                     singleUnicode);
             return gv.getGlyphMetrics(0).getAdvance();