Capabilities cleanup: make most get*() final, impl. Comparable to CapabilitiesImmutable, Misc ..

- Comparable<CapabilitiesImmutable> to CapabilitiesImmutable:
  "interface CapabilitiesImmutable extends VisualIDHolder, WriteCloneable" ->
  "interface CapabilitiesImmutable extends VisualIDHolder, WriteCloneable, Comparable<CapabilitiesImmutable>"

- CapabilitiesImmutable and GLCapabilitiesImmutable get-methods final (most)

- GLCapabilitiesImmutable.compareTo: add doubleBuffered (between stereo and samples)

Misc:
  - Add @Override
  - remove trailing whitespace,

1 files changed, 5 insertions, 2 deletions

diff --git a/src/nativewindow/classes/jogamp/nativewindow/x11/X11Capabilities.java b/src/nativewindow/classes/jogamp/nativewindow/x11/X11Capabilities.java
index 0e69c738f..4f8cff8c5 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/x11/X11Capabilities.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/x11/X11Capabilities.java
@@ -40,10 +40,12 @@ public class X11Capabilities extends Capabilities {
       this.xVisualInfo = xVisualInfo;
   }
 
+  @Override
   public Object cloneMutable() {
     return clone();
   }
 
+  @Override
   public Object clone() {
     try {
       return super.clone();
@@ -68,9 +70,10 @@ public class X11Capabilities extends Capabilities {
               return VisualIDHolder.VID_UNDEFINED;
           default:
               throw new NativeWindowException("Invalid type <"+type+">");
-      }      
+      }
   }
-  
+
+  @Override
   public StringBuilder toString(StringBuilder sink) {
     if(null == sink) {
         sink = new StringBuilder();