GLProfile: Initialization fix and clarifications ( GLExceptions on n/a profiles )

- GLProfile.initSingleton(boolean) (implicit or explicit) won't
  throw any exception anymore. Followup 'GLProfile GLProfile.get(..)'
  calls will throw a GLException, if n/a.
  Availability maybe queried via GLProfile.isAvailable(..).

- GLCapabilties, GLCanvas, GLJPanel: Clarify case where GLException maybe thrown,
  i.e. no default GLProfile available on default device.

- Remove redundant GLProfile.is<ProfileName>Available(..)

4 files changed, 140 insertions, 141 deletions

diff --git a/src/jogl/classes/javax/media/opengl/GLCapabilities.java b/src/jogl/classes/javax/media/opengl/GLCapabilities.java
index 1ae9e40aa..b63124e33 100644
--- a/src/jogl/classes/javax/media/opengl/GLCapabilities.java
+++ b/src/jogl/classes/javax/media/opengl/GLCapabilities.java
@@ -79,8 +79,9 @@ public class GLCapabilities extends Capabilities implements Cloneable, GLCapabil
 
   /** Creates a GLCapabilities object. All attributes are in a default state.
     * @param glp GLProfile, or null for the default GLProfile
+    * @throws GLException if no profile is given and no default profile is available for the default device.
     */
-  public GLCapabilities(GLProfile glp) {
+  public GLCapabilities(GLProfile glp) throws GLException {
       glProfile = (null!=glp)?glp:GLProfile.getDefault(GLProfile.getDefaultDevice());
   }
 
diff --git a/src/jogl/classes/javax/media/opengl/GLProfile.java b/src/jogl/classes/javax/media/opengl/GLProfile.java
index 1921d117b..af652fe0b 100644
--- a/src/jogl/classes/javax/media/opengl/GLProfile.java
+++ b/src/jogl/classes/javax/media/opengl/GLProfile.java
@@ -98,11 +98,6 @@ public class GLProfile {
      * hence without the possibility to enable native multithreading.<br>
      * This is not the recommended way, since it may has a performance impact, but it allows you to run code without explicit initialization.</P>
      * <P>
-     * In case no explicit initialization was invoked and the implicit initialization didn't happen,<br>
-     * you may encounter the following exception:
-     * <pre>
-     *      javax.media.opengl.GLException: No default profile available
-     * </pre></P>
      *
      * @param firstUIActionOnProcess Should be <code>true</code> if called before the first UI action of the running program,
      * otherwise <code>false</code>.
@@ -124,8 +119,10 @@ public class GLProfile {
     /**
      * Trigger eager initialization of GLProfiles for the given device,
      * in case it isn't done yet.
+     * 
+     * @throws GLException if no profile for the given device is available.
      */
-    public static void initProfiles(AbstractGraphicsDevice device) {
+    public static void initProfiles(AbstractGraphicsDevice device) throws GLException {
         getProfileMap(device);
     }
 
@@ -147,87 +144,42 @@ public class GLProfile {
     // Query platform available OpenGL implementation
     //
 
-    public static boolean isGL4bcAvailable(AbstractGraphicsDevice device)   {
-        return null != getProfileMap(device).get(GL4bc);
-    }
-
-    public static boolean isGL4Available(AbstractGraphicsDevice device)     {
-        return null != getProfileMap(device).get(GL4);
-    }
-
-    public static boolean isGL3bcAvailable(AbstractGraphicsDevice device) {
-        return null != getProfileMap(device).get(GL3bc);
-    }
-
-    public static boolean isGL3Available(AbstractGraphicsDevice device) {
-        return null != getProfileMap(device).get(GL3);
-    }
-
-    public static boolean isGL2Available(AbstractGraphicsDevice device) {
-        return null != getProfileMap(device).get(GL2);
-    }
-
-    public static boolean isGLES2Available(AbstractGraphicsDevice device) {
-        return null != getProfileMap(device).get(GLES2);
-    }
-
-    public static boolean isGLES1Available(AbstractGraphicsDevice device) {
-        return null != getProfileMap(device).get(GLES1);
-    }
-
-    public static boolean isGL2ES1Available(AbstractGraphicsDevice device) {
-        return null != getProfileMap(device).get(GL2ES1);
-    }
-
-    public static boolean isGL2ES2Available(AbstractGraphicsDevice device) {
-        return null != getProfileMap(device).get(GL2ES2);
-    }
-
-    /** Uses the default device */
-    public static boolean isGL4bcAvailable()   {
-        return isGL4bcAvailable(null);
-    }
-
-    /** Uses the default device */
-    public static boolean isGL4Available()     {
-        return isGL4Available(null);
-    }
-
-    /** Uses the default device */
-    public static boolean isGL3bcAvailable() {
-        return isGL3bcAvailable(null);
-    }
-
-    /** Uses the default device */
-    public static boolean isGL3Available() {
-        return isGL3Available(null);
-    }
-
-    /** Uses the default device */
-    public static boolean isGL2Available() {
-        return isGL2Available(null);
-    }
-
-    /** Uses the default device */
-    public static boolean isGLES2Available() {
-        return isGLES2Available(null);
-    }
-
-    /** Uses the default device */
-    public static boolean isGLES1Available() {
-        return isGLES1Available(null);
+    /** 
+     * Returns the availability of a profile on a device.
+     * 
+     * @param device a valid AbstractGraphicsDevice, or <code>null</null> for the default device.
+     * @param profile a valid GLProfile name ({@link #GL4bc}, {@link #GL4}, {@link #GL2}, ..), 
+     *        or <code>[ null, GL ]</code> for the default profile.
+     * @return true if the profile is available for the device, otherwise false.
+     */
+    public static boolean isAvailable(AbstractGraphicsDevice device, String profile) {
+        HashMap profileMap = null;
+        try {
+            return null != getProfileMap(device).get(profile);
+        } catch (GLException gle) { /* profiles for device n/a */ }
+        return false;
     }
 
-    /** Uses the default device */
-    public static boolean isGL2ES1Available() {
-        return isGL2ES1Available(null);
+    /** 
+     * Returns the availability of a profile on the default device.
+     * 
+     * @param profile a valid GLProfile name ({@link #GL4bc}, {@link #GL4}, {@link #GL2}, ..), 
+     *        or <code>[ null, GL ]</code> for the default profile.
+     * @return true if the profile is available for the default device, otherwise false.
+     */
+    public static boolean isAvailable(String profile) {
+        return isAvailable(null, profile);
     }
-
-    /** Uses the default device */
-    public static boolean isGL2ES2Available() {
-        return isGL2ES2Available(null);
+    
+    /** 
+     * Returns the availability of any profile on the default device.
+     * 
+     * @return true if any profile is available for the default device, otherwise false.
+     */
+    public static boolean isAnyAvailable() {
+        return isAvailable(null, null);
     }
-
+    
     public static String glAvailabilityToString(AbstractGraphicsDevice device) {
         boolean avail;
         StringBuffer sb = new StringBuffer();
@@ -239,67 +191,73 @@ public class GLProfile {
         }
 
         sb.append("GLAvailability[Native[GL4bc ");
-        avail=isGL4bcAvailable(device);
+        avail=isAvailable(device, GL4bc);
         sb.append(avail);
         if(avail) {
             glAvailabilityToString(device, sb, 4, GLContext.CTX_PROFILE_COMPAT);
         }
 
         sb.append(", GL4 ");
-        avail=isGL4Available(device);
+        avail=isAvailable(device, GL4);
         sb.append(avail);
         if(avail) {
             glAvailabilityToString(device, sb, 4, GLContext.CTX_PROFILE_CORE);
         }
 
         sb.append(", GL3bc ");
-        avail=isGL3bcAvailable(device);
+        avail=isAvailable(device, GL3bc);
         sb.append(avail);
         if(avail) {
             glAvailabilityToString(device, sb, 3, GLContext.CTX_PROFILE_COMPAT);
         }
 
         sb.append(", GL3 ");
-        avail=isGL3Available(device);
+        avail=isAvailable(device, GL3);
         sb.append(avail);
         if(avail) {
             glAvailabilityToString(device, sb, 3, GLContext.CTX_PROFILE_CORE);
         }
 
         sb.append(", GL2 ");
-        avail=isGL2Available(device);
+        avail=isAvailable(device, GL2);
         sb.append(avail);
         if(avail) {
             glAvailabilityToString(device, sb, 2, GLContext.CTX_PROFILE_COMPAT);
         }
 
         sb.append(", GL2ES1 ");
-        sb.append(isGL2ES1Available(device));
+        sb.append(isAvailable(device, GL2ES1));
 
         sb.append(", GLES1 ");
-        avail=isGLES1Available(device);
+        avail=isAvailable(device, GLES1);
         sb.append(avail);
         if(avail) {
             glAvailabilityToString(device, sb, 1, GLContext.CTX_PROFILE_ES);
         }
 
         sb.append(", GL2ES2 ");
-        sb.append(isGL2ES2Available(device));
+        sb.append(isAvailable(device, GL2ES2));
 
         sb.append(", GLES2 ");
-        avail=isGLES2Available(device);
+        avail=isAvailable(device, GLES2);
         sb.append(avail);
         if(avail) {
             glAvailabilityToString(device, sb, 2, GLContext.CTX_PROFILE_ES);
         }
 
         sb.append("], Profiles[");
-        for(Iterator i=getProfileMap(device).values().iterator(); i.hasNext(); ) {
-            sb.append(((GLProfile)i.next()).toString());
-            sb.append(", ");
+        HashMap profileMap = null;
+        try {
+            profileMap = getProfileMap(device);
+        } catch (GLException gle) { /* profiles for device n/a */ }
+        if(null != profileMap) {
+            for(Iterator i=profileMap.values().iterator(); i.hasNext(); ) {
+                sb.append(((GLProfile)i.next()).toString());
+                sb.append(", ");
+            }
+            sb.append(", default ");
+            sb.append(getDefault(device));
         }
-        sb.append(", default ");
-        sb.append(getDefault(device));
         sb.append("]]");
 
         return sb.toString();
@@ -456,6 +414,7 @@ public class GLProfile {
 
     /** Returns a default GLProfile object, reflecting the best for the running platform.
      * It selects the first of the set {@link GLProfile#GL_PROFILE_LIST_ALL}
+     * @throws GLException if no profile is available for the device.
      * @see #GL_PROFILE_LIST_ALL
      */
     public static GLProfile getDefault(AbstractGraphicsDevice device) {
@@ -463,7 +422,9 @@ public class GLProfile {
         return glp;
     }
 
-    /** Uses the default device */
+    /** Uses the default device 
+     * @throws GLException if no profile is available for the default device.
+     */
     public static GLProfile getDefault() {
         return getDefault(defaultDevice);
     }
@@ -472,7 +433,7 @@ public class GLProfile {
      * Returns the highest profile.
      * It selects the first of the set: {@link GLProfile#GL_PROFILE_LIST_MAX}
      *
-     * @throws GLException if no implementation for the given profile is found.
+     * @throws GLException if no profile is available for the device.
      * @see #GL_PROFILE_LIST_MAX
      */
     public static GLProfile getMaximum(AbstractGraphicsDevice device)
@@ -481,7 +442,9 @@ public class GLProfile {
         return get(device, GL_PROFILE_LIST_MAX);
     }
 
-    /** Uses the default device */
+    /** Uses the default device 
+     * @throws GLException if no profile is available for the default device.
+     */
     public static GLProfile getMaximum()
         throws GLException
     {
@@ -492,7 +455,7 @@ public class GLProfile {
      * Returns the lowest desktop profile.
      * It selects the first of the set: {@link GLProfile#GL_PROFILE_LIST_MIN_DESKTOP}
      *
-     * @throws GLException if no implementation for the given profile is found.
+     * @throws GLException if no desktop profile is available for the device.
      * @see #GL_PROFILE_LIST_MIN_DESKTOP
      */
     public static GLProfile getMinDesktop(AbstractGraphicsDevice device)
@@ -501,7 +464,9 @@ public class GLProfile {
         return get(device, GL_PROFILE_LIST_MIN_DESKTOP);
     }
 
-    /** Uses the default device */
+    /** Uses the default device 
+     * @throws GLException if no desktop profile is available for the default device.
+     */
     public static GLProfile getMinDesktop()
         throws GLException
     {
@@ -513,7 +478,7 @@ public class GLProfile {
      * Returns the highest profile, implementing the fixed function pipeline.
      * It selects the first of the set: {@link GLProfile#GL_PROFILE_LIST_MAX_FIXEDFUNC}
      *
-     * @throws GLException if no implementation for the given profile is found.
+     * @throws GLException if no fixed function profile is available for the device.
      * @see #GL_PROFILE_LIST_MAX_FIXEDFUNC
      */
     public static GLProfile getMaxFixedFunc(AbstractGraphicsDevice device)
@@ -522,7 +487,9 @@ public class GLProfile {
         return get(device, GL_PROFILE_LIST_MAX_FIXEDFUNC);
     }
 
-    /** Uses the default device */
+    /** Uses the default device 
+     * @throws GLException if no fixed function profile is available for the default device.
+     */
     public static GLProfile getMaxFixedFunc()
         throws GLException
     {
@@ -533,7 +500,7 @@ public class GLProfile {
      * Returns the highest profile, implementing the programmable shader pipeline.
      * It selects the first of the set: {@link GLProfile#GL_PROFILE_LIST_MAX_PROGSHADER}
      *
-     * @throws GLException if no implementation for the given profile is found.
+     * @throws GLException if no programmable profile is available for the device.
      * @see #GL_PROFILE_LIST_MAX_PROGSHADER
      */
     public static GLProfile getMaxProgrammable(AbstractGraphicsDevice device)
@@ -542,7 +509,9 @@ public class GLProfile {
         return get(device, GL_PROFILE_LIST_MAX_PROGSHADER);
     }
 
-    /** Uses the default device */
+    /** Uses the default device 
+     * @throws GLException if no programmable profile is available for the default device.
+     */
     public static GLProfile getMaxProgrammable()
         throws GLException
     {
@@ -553,7 +522,7 @@ public class GLProfile {
      * Returns an available GL2ES1 compatible profile.
      * It returns the first available of the set: {@link GLProfile#GL_PROFILE_LIST_GL2ES1}.
      * 
-     * @throws GLException if no implementation for the given profile is found.
+     * @throws GLException if no GL2ES1 compatible profile is available for the device.
      * @see #GL_PROFILE_LIST_GL2ES1
      */
     public static GLProfile getGL2ES1(AbstractGraphicsDevice device)
@@ -566,7 +535,7 @@ public class GLProfile {
      * Returns an available GL2ES1 compatible profile.
      * It returns the first available of the set: {@link GLProfile#GL_PROFILE_LIST_GL2ES1}.
      * 
-     * @throws GLException if no implementation for the given profile is found.
+     * @throws GLException if no GL2ES1 compatible profile is available for the default device.
      * @see #GL_PROFILE_LIST_GL2ES1
      */
     public static GLProfile getGL2ES1()
@@ -579,7 +548,7 @@ public class GLProfile {
      * Returns an available GL2ES2 compatible profile.
      * It returns the first available of the set: {@link GLProfile#GL_PROFILE_LIST_GL2ES2}.
      *
-     * @throws GLException if no implementation for the given profile is found.
+     * @throws GLException if no GL2ES2 compatible profile is available for the device.
      * @see #GL_PROFILE_LIST_GL2ES2
      */
     public static GLProfile getGL2ES2(AbstractGraphicsDevice device)
@@ -592,7 +561,7 @@ public class GLProfile {
      * Returns an available GL2ES2 compatible profile
      * It returns the first available of the set: {@link GLProfile#GL_PROFILE_LIST_GL2ES2}.
      *
-     * @throws GLException if no implementation for the given profile is found.
+     * @throws GLException if no GL2ES2 compatible profile is available for the default device.
      * @see #GL_PROFILE_LIST_GL2ES2
      */
     public static GLProfile getGL2ES2()
@@ -606,7 +575,10 @@ public class GLProfile {
      * A generic value of <code>null</code> or <code>GL</code> will result in
      * the default profile.
      *
-     * @throws GLException if no implementation for the given profile is found.
+     * @param device a valid AbstractGraphicsDevice, or <code>null</null> for the default device.
+     * @param profile a valid GLProfile name ({@link #GL4bc}, {@link #GL4}, {@link #GL2}, ..), 
+     *        or <code>[ null, GL ]</code> for the default profile.
+     * @throws GLException if the requested profile is not available for the device.
      */
     public static GLProfile get(AbstractGraphicsDevice device, String profile)
         throws GLException
@@ -617,7 +589,11 @@ public class GLProfile {
         return (GLProfile) getProfileMap(device).get(profile);
     }
 
-    /** Uses the default device */
+    /** Uses the default device 
+     * @param profile a valid GLProfile name ({@link #GL4bc}, {@link #GL4}, {@link #GL2}, ..), 
+     *        or <code>[ null, GL ]</code> for the default profile.
+     * @throws GLException if the requested profile is not available for the default device.
+     */
     public static GLProfile get(String profile)
         throws GLException
     {
@@ -628,7 +604,9 @@ public class GLProfile {
      * Returns the first profile from the given list,
      * where an implementation is available.
      *
-     * @throws GLException if no implementation for the given profile is found.
+     * @param device a valid AbstractGraphicsDevice, or <code>null</null> for the default device.
+     * @param profiles array of valid GLProfile name ({@link #GL4bc}, {@link #GL4}, {@link #GL2}, ..) 
+     * @throws GLException if the non of the requested profiles is available for the device.
      */
     public static GLProfile get(AbstractGraphicsDevice device, String[] profiles)
         throws GLException
@@ -644,7 +622,10 @@ public class GLProfile {
         throw new GLException("Profiles "+array2String(profiles)+" not available on device "+device);
     }
 
-    /** Uses the default device */
+    /** Uses the default device 
+     * @param profiles array of valid GLProfile name ({@link #GL4bc}, {@link #GL4}, {@link #GL2}, ..) 
+     * @throws GLException if the non of the requested profiles is available for the default device.
+     */
     public static GLProfile get(String[] profiles)
         throws GLException
     {
@@ -1152,7 +1133,6 @@ public class GLProfile {
 
     /**
      * Tries the profiles implementation and native libraries.
-     * Throws an GLException if no profile could be found at all.
      */
     private static void initProfilesForDefaultDevices(boolean firstUIActionOnProcess) {
         NativeWindowFactory.initSingleton(firstUIActionOnProcess);
@@ -1257,10 +1237,11 @@ public class GLProfile {
             }
         }
 
-        boolean addedAnyProfile = initProfilesForDevice(defaultDesktopDevice) ||
-                                  initProfilesForDevice(defaultEGLDevice);
-        
+        final boolean addedAnyProfile = initProfilesForDevice(defaultDesktopDevice) ||
+                                        initProfilesForDevice(defaultEGLDevice);
+
         if(DEBUG) {
+            System.err.println("GLProfile.init addedAnyProfile      "+addedAnyProfile);
             System.err.println("GLProfile.init isAWTAvailable       "+isAWTAvailable);
             System.err.println("GLProfile.init has desktopFactory   "+(null!=desktopFactory));
             System.err.println("GLProfile.init hasDesktopGL         "+hasDesktopGL);
@@ -1271,10 +1252,7 @@ public class GLProfile {
             System.err.println("GLProfile.init defaultDesktopDevice "+defaultDesktopDevice);
             System.err.println("GLProfile.init defaultEGLDevice     "+defaultEGLDevice);
             System.err.println("GLProfile.init defaultDevice        "+defaultDevice);
-        }
-        
-        if(!addedAnyProfile) {
-            throw new GLException("No profile available: "+array2String(GL_PROFILE_LIST_ALL)+", "+ glAvailabilityToString());
+            System.err.println("GLProfile.init: "+array2String(GL_PROFILE_LIST_ALL)+", "+ glAvailabilityToString());
         }
     }
 
@@ -1289,12 +1267,12 @@ public class GLProfile {
         GLDrawableFactory factory = GLDrawableFactory.getFactoryImpl(device);
         factory.enterThreadCriticalZone();
         try {
-            return initProfilesForDeviceImpl(device);
+            return initProfilesForDeviceCritical(device);
         } finally {
             factory.leaveThreadCriticalZone();
         }
     }
-    private static synchronized boolean initProfilesForDeviceImpl(AbstractGraphicsDevice device) {
+    private static synchronized boolean initProfilesForDeviceCritical(AbstractGraphicsDevice device) {
         boolean isSet = GLContext.getAvailableGLVersionsSet(device);
 
         if(DEBUG) {
@@ -1572,17 +1550,20 @@ public class GLProfile {
      *  - initialization<br<
      *
      * @param device the key 'device -> GLProfiles-Map'
-     * @return the GLProfile HashMap
+     * @return the GLProfile HashMap if exists, otherwise null 
+     * @throws GLException if no profile for the given device is available.
      */
-    private static HashMap getProfileMap(AbstractGraphicsDevice device) {
+    private static HashMap getProfileMap(AbstractGraphicsDevice device) throws GLException {
         validateInitialization();
         if(null==device) {
             device = defaultDevice;
         }
         String deviceKey = device.getUniqueID();
         HashMap map = (HashMap) deviceConn2ProfileMap.get(deviceKey);
-        if(null==map) {
-            initProfilesForDevice(device);
+        if( null == map ) {
+            if( !initProfilesForDevice(device) ) {
+                throw new GLException("No Profile available for "+device);
+            }
             if( null == deviceConn2ProfileMap.get(deviceKey) ) {
                 throw new InternalError("initProfilesForDevice(..) didn't issue setProfileMap(..) on "+device);
             }
diff --git a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
index 160cdce51..80e042dd3 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
@@ -165,17 +165,20 @@ public class GLCanvas extends Canvas implements AWTGLAutoDrawable, WindowClosing
 
   /** Creates a new GLCanvas component with a default set of OpenGL
       capabilities, using the default OpenGL capabilities selection
-      mechanism, on the default screen device. */
-  public GLCanvas() {
+      mechanism, on the default screen device. 
+   * @throws GLException if no default profile is available for the default desktop device.
+   */
+  public GLCanvas() throws GLException {
     this(null);
   }
 
   /** Creates a new GLCanvas component with the requested set of
       OpenGL capabilities, using the default OpenGL capabilities
       selection mechanism, on the default screen device. 
+   * @throws GLException if no GLCapabilities are given and no default profile is available for the default desktop device.
    * @see GLCanvas#GLCanvas(javax.media.opengl.GLCapabilitiesImmutable, javax.media.opengl.GLCapabilitiesChooser, javax.media.opengl.GLContext, java.awt.GraphicsDevice)
    */
-  public GLCanvas(GLCapabilitiesImmutable capsReqUser) {
+  public GLCanvas(GLCapabilitiesImmutable capsReqUser) throws GLException {
     this(capsReqUser, null, null, null);
   }
 
@@ -184,9 +187,12 @@ public class GLCanvas extends Canvas implements AWTGLAutoDrawable, WindowClosing
       selection mechanism, on the default screen device.
    *  This constructor variant also supports using a shared GLContext.
    *
+   * @throws GLException if no GLCapabilities are given and no default profile is available for the default desktop device.
    * @see GLCanvas#GLCanvas(javax.media.opengl.GLCapabilitiesImmutable, javax.media.opengl.GLCapabilitiesChooser, javax.media.opengl.GLContext, java.awt.GraphicsDevice)
    */
-  public GLCanvas(GLCapabilitiesImmutable capsReqUser, GLContext shareWith) {
+  public GLCanvas(GLCapabilitiesImmutable capsReqUser, GLContext shareWith) 
+          throws GLException 
+  {
     this(capsReqUser, null, shareWith, null);
   }
 
@@ -204,11 +210,15 @@ public class GLCanvas extends Canvas implements AWTGLAutoDrawable, WindowClosing
       sharing</a>. The passed GraphicsDevice indicates the screen on
       which to create the GLCanvas; the GLDrawableFactory uses the
       default screen device of the local GraphicsEnvironment if null
-      is passed for this argument. */
+      is passed for this argument. 
+   * @throws GLException if no GLCapabilities are given and no default profile is available for the default desktop device.
+   */
   public GLCanvas(GLCapabilitiesImmutable capsReqUser,
                   GLCapabilitiesChooser chooser,
                   GLContext shareWith,
-                  GraphicsDevice device) {
+                  GraphicsDevice device) 
+      throws GLException 
+  {
     /*
      * Determination of the native window is made in 'super.addNotify()',
      * which creates the native peer using AWT's GraphicsConfiguration.
diff --git a/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java b/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
index 2d58584f7..76d982813 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
@@ -199,15 +199,19 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
 
   /** Creates a new GLJPanel component with a default set of OpenGL
       capabilities and using the default OpenGL capabilities selection
-      mechanism. */
-  public GLJPanel() {
+      mechanism. 
+   * @throws GLException if no default profile is available for the default desktop device.
+   */
+  public GLJPanel() throws GLException {
     this(null);
   }
 
   /** Creates a new GLJPanel component with the requested set of
       OpenGL capabilities, using the default OpenGL capabilities
-      selection mechanism. */
-  public GLJPanel(GLCapabilitiesImmutable userCapsRequest) {
+      selection mechanism. 
+   * @throws GLException if no GLCapabilities are given and no default profile is available for the default desktop device.
+   */
+  public GLJPanel(GLCapabilitiesImmutable userCapsRequest) throws GLException {
     this(userCapsRequest, null, null);
   }
 
@@ -224,8 +228,11 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
       <P>
       Note: Sharing cannot be enabled using J2D OpenGL FBO sharing,
       since J2D GL Context must be shared and we can only share one context.
+    * @throws GLException if no GLCapabilities are given and no default profile is available for the default desktop device.
   */
-  public GLJPanel(GLCapabilitiesImmutable userCapsRequest, GLCapabilitiesChooser chooser, GLContext shareWith) {
+  public GLJPanel(GLCapabilitiesImmutable userCapsRequest, GLCapabilitiesChooser chooser, GLContext shareWith) 
+          throws GLException 
+  {
     super();
 
     // Works around problems on many vendors' cards; we don't need a
@@ -235,7 +242,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
         if (userCapsRequest != null) {
             caps = (GLCapabilities) userCapsRequest.cloneMutable();
         } else {
-            caps = new GLCapabilities(null);
+            caps = new GLCapabilities(GLProfile.getDefault(GLProfile.getDefaultDesktopDevice()));
         }
         caps.setDoubleBuffered(false);
         offscreenCaps = caps;