DEBUG Output: More thread-names to drawable/context lifecycle; Remove massive '!!!' occurence

22 files changed, 115 insertions, 108 deletions

diff --git a/src/jogl/classes/javax/media/opengl/GLContext.java b/src/jogl/classes/javax/media/opengl/GLContext.java
index b74cfb939..53b63cc0d 100644
--- a/src/jogl/classes/javax/media/opengl/GLContext.java
+++ b/src/jogl/classes/javax/media/opengl/GLContext.java
@@ -833,7 +833,7 @@ public abstract class GLContext {
           }
           deviceVersionsAvailableSet.add(devKey);
           if (DEBUG) {
-            System.err.println(getThreadName() + ": !!! createContextARB: SET mappedVersionsAvailableSet "+devKey);
+            System.err.println(getThreadName() + ": createContextARB: SET mappedVersionsAvailableSet "+devKey);
             // Thread.dumpStack();
           }
       }
diff --git a/src/jogl/classes/javax/media/opengl/GLProfile.java b/src/jogl/classes/javax/media/opengl/GLProfile.java
index b32cd2962..766bee881 100644
--- a/src/jogl/classes/javax/media/opengl/GLProfile.java
+++ b/src/jogl/classes/javax/media/opengl/GLProfile.java
@@ -1526,7 +1526,7 @@ public class GLProfile {
                                                 2, GLContext.CTX_PROFILE_ES,
                                                 2, 0, GLContext.CTX_PROFILE_ES|GLContext.CTX_IMPL_ES2_COMPAT);
                 if (DEBUG) {
-                  System.err.println(GLContext.getThreadName() + ": !!! initProfilesForDeviceCritical-MapVersionsAvailable HAVE: ES2 -> ES 2.0");
+                  System.err.println(GLContext.getThreadName() + ": initProfilesForDeviceCritical-MapVersionsAvailable HAVE: ES2 -> ES 2.0");
                 }
             }
             if( hasGLES1Impl ) {
@@ -1535,7 +1535,7 @@ public class GLProfile {
                                                 1, GLContext.CTX_PROFILE_ES,
                                                 1, 0, GLContext.CTX_PROFILE_ES);
                 if (DEBUG) {
-                  System.err.println(GLContext.getThreadName() + ": !!! initProfilesForDeviceCritical-MapVersionsAvailable HAVE: ES1 -> ES 1.0");
+                  System.err.println(GLContext.getThreadName() + ": initProfilesForDeviceCritical-MapVersionsAvailable HAVE: ES1 -> ES 1.0");
                 }
             }
             addedEGLProfile = computeProfileMap(device, false /* desktopCtxUndef*/, false /* esCtxUndef */);
diff --git a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
index 9c5263b37..da7051665 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
@@ -332,12 +332,12 @@ public class GLCanvas extends Canvas implements AWTGLAutoDrawable, WindowClosing
         if(DEBUG) {
             Exception e = new Exception("Info: Call Stack: "+Thread.currentThread().getName());
             e.printStackTrace();
-            System.err.println("!!! Created Config (n): HAVE    GC "+chosen);
-            System.err.println("!!! Created Config (n): THIS    GC "+gc);
-            System.err.println("!!! Created Config (n): Choosen GC "+compatible);
-            System.err.println("!!! Created Config (n): HAVE    CF "+awtConfig);
-            System.err.println("!!! Created Config (n): Choosen CF "+config);
-            System.err.println("!!! Created Config (n): EQUALS CAPS "+equalCaps);
+            System.err.println("Created Config (n): HAVE    GC "+chosen);
+            System.err.println("Created Config (n): THIS    GC "+gc);
+            System.err.println("Created Config (n): Choosen GC "+compatible);
+            System.err.println("Created Config (n): HAVE    CF "+awtConfig);
+            System.err.println("Created Config (n): Choosen CF "+config);
+            System.err.println("Created Config (n): EQUALS CAPS "+equalCaps);
         }
 
         if (compatible != null) {
diff --git a/src/jogl/classes/jogamp/opengl/GLContextImpl.java b/src/jogl/classes/jogamp/opengl/GLContextImpl.java
index 08a9baeb9..f9e8a60db 100644
--- a/src/jogl/classes/jogamp/opengl/GLContextImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLContextImpl.java
@@ -279,8 +279,8 @@ public abstract class GLContextImpl extends GLContext {
       if(lock.getHoldCount() > 2) {
           throw new GLException("XXX: "+lock);
       }
-      if (DEBUG || TRACE_SWITCH) {
-          System.err.println("GLContextImpl.destroy.0 - "+Thread.currentThread().getName()+": " + toHexString(contextHandle) +
+      if (DEBUG || TRACE_SWITCH) {          
+          System.err.println(getThreadName() + ": GLContextImpl.destroy.0 - "+Thread.currentThread().getName()+": " + toHexString(contextHandle) +
                   ", isShared "+GLContextShareSet.isShared(this)+" - "+lock);
       }
       if (contextHandle != 0) {
@@ -316,7 +316,7 @@ public abstract class GLContextImpl extends GLContext {
     } finally {
       lock.unlock();
       if (DEBUG || TRACE_SWITCH) {
-          System.err.println("GLContextImpl.destroy.X: " + toHexString(contextHandle) +
+          System.err.println(getThreadName() + ": GLContextImpl.destroy.X: " + toHexString(contextHandle) +
                   ", isShared "+GLContextShareSet.isShared(this)+" - "+lock);
       }
     }
@@ -514,9 +514,9 @@ public abstract class GLContextImpl extends GLContext {
         }
         if (DEBUG) {
             if(created) {
-                System.err.println(getThreadName() + ": !!! Create GL context OK: " + toHexString(contextHandle) + " for " + getClass().getName()+" - "+getGLVersion());
+                System.err.println(getThreadName() + ": Create GL context OK: " + toHexString(contextHandle) + " for " + getClass().getName()+" - "+getGLVersion());
             } else {
-                System.err.println(getThreadName() + ": !!! Create GL context FAILED for " + getClass().getName());
+                System.err.println(getThreadName() + ": Create GL context FAILED for " + getClass().getName());
             }
         }        
         if(!created) {
@@ -547,7 +547,7 @@ public abstract class GLContextImpl extends GLContext {
                                                 ctxMajorVersion, ctxMinorVersion, ctxOptions);
                 GLContext.setAvailableGLVersionsSet(device);
                 if (DEBUG) {
-                  System.err.println(getThreadName() + ": !!! createContextOLD-MapVersionsAvailable HAVE: " +reqMajor+"."+reqProfile+ " -> "+getGLVersion());
+                  System.err.println(getThreadName() + ": createContextOLD-MapVersionsAvailable HAVE: " +reqMajor+"."+reqProfile+ " -> "+getGLVersion());
                 }
             }
         }
@@ -646,7 +646,7 @@ public abstract class GLContextImpl extends GLContext {
     GLProfile glpImpl = glp.getImpl();
 
     if (DEBUG) {
-      System.err.println(getThreadName() + ": !!! createContextARB: mappedVersionsAvailableSet("+device.getConnection()+"): "+
+      System.err.println(getThreadName() + ": createContextARB: mappedVersionsAvailableSet("+device.getConnection()+"): "+
                GLContext.getAvailableGLVersionsSet(device));
     }
 
@@ -758,10 +758,10 @@ public abstract class GLContextImpl extends GLContext {
         }*/
         destroyContextARBImpl(_context);
         if (DEBUG) {
-          System.err.println(getThreadName() + ": !!! createContextARB-MapVersionsAvailable HAVE: " +reqMajor+"."+reqProfile+ " -> "+getGLVersion());
+          System.err.println(getThreadName() + ": createContextARB-MapVersionsAvailable HAVE: " +reqMajor+"."+reqProfile+ " -> "+getGLVersion());
         }
     } else if (DEBUG) {
-        System.err.println(getThreadName() + ": !!! createContextARB-MapVersionsAvailable NOPE: "+reqMajor+"."+reqProfile);
+        System.err.println(getThreadName() + ": createContextARB-MapVersionsAvailable NOPE: "+reqMajor+"."+reqProfile);
     }
     resetStates();
   }
@@ -988,7 +988,7 @@ public abstract class GLContextImpl extends GLContext {
     
     contextFQN = getContextFQN(adevice, major, minor, ctxProfileBits);
     if (DEBUG) {
-      System.err.println(getThreadName() + ": !!! Context FQN: "+contextFQN+" - "+GLContext.getGLVersion(major, minor, ctxProfileBits, null));
+      System.err.println(getThreadName() + ": Context FQN: "+contextFQN+" - "+GLContext.getGLVersion(major, minor, ctxProfileBits, null));
     }
 
     //
@@ -1005,7 +1005,7 @@ public abstract class GLContextImpl extends GLContext {
     if(null != table) {
         glProcAddressTable = table;
         if(DEBUG) {
-            System.err.println(getThreadName() + ": !!! GLContext GL ProcAddressTable reusing key("+contextFQN+") -> "+toHexString(table.hashCode()));
+            System.err.println(getThreadName() + ": GLContext GL ProcAddressTable reusing key("+contextFQN+") -> "+toHexString(table.hashCode()));
         }
     } else {
         glProcAddressTable = (ProcAddressTable) createInstance(gl.getGLProfile(), "ProcAddressTable",
@@ -1015,7 +1015,7 @@ public abstract class GLContextImpl extends GLContext {
         synchronized(mappedContextTypeObjectLock) {
             mappedGLProcAddress.put(contextFQN, getGLProcAddressTable());
             if(DEBUG) {
-                System.err.println(getThreadName() + ": !!! GLContext GL ProcAddressTable mapping key("+contextFQN+") -> "+toHexString(getGLProcAddressTable().hashCode()));
+                System.err.println(getThreadName() + ": GLContext GL ProcAddressTable mapping key("+contextFQN+") -> "+toHexString(getGLProcAddressTable().hashCode()));
             }
         }
     }
@@ -1030,7 +1030,7 @@ public abstract class GLContextImpl extends GLContext {
     if(null !=  eCache) {
         extensionAvailability = eCache;
         if(DEBUG) {
-            System.err.println(getThreadName() + ": !!! GLContext GL ExtensionAvailabilityCache reusing key("+contextFQN+") -> "+toHexString(eCache.hashCode()) + " - entries: "+eCache.getTotalExtensionCount());
+            System.err.println(getThreadName() + ": GLContext GL ExtensionAvailabilityCache reusing key("+contextFQN+") -> "+toHexString(eCache.hashCode()) + " - entries: "+eCache.getTotalExtensionCount());
         }
     } else {
         extensionAvailability = new ExtensionAvailabilityCache();
@@ -1039,7 +1039,7 @@ public abstract class GLContextImpl extends GLContext {
         synchronized(mappedContextTypeObjectLock) {
             mappedExtensionAvailabilityCache.put(contextFQN, extensionAvailability);
             if(DEBUG) {
-                System.err.println(getThreadName() + ": !!! GLContext GL ExtensionAvailabilityCache mapping key("+contextFQN+") -> "+toHexString(extensionAvailability.hashCode()) + " - entries: "+extensionAvailability.getTotalExtensionCount());
+                System.err.println(getThreadName() + ": GLContext GL ExtensionAvailabilityCache mapping key("+contextFQN+") -> "+toHexString(extensionAvailability.hashCode()) + " - entries: "+extensionAvailability.getTotalExtensionCount());
             }
         }
     }    
@@ -1062,20 +1062,20 @@ public abstract class GLContextImpl extends GLContext {
     
     contextFQN = getContextFQN(adevice, major, minor, ctxProfileBits);
     if (DEBUG) {
-      System.err.println(getThreadName() + ": !!! RM Context FQN: "+contextFQN+" - "+GLContext.getGLVersion(major, minor, ctxProfileBits, null));
+      System.err.println(getThreadName() + ": RM Context FQN: "+contextFQN+" - "+GLContext.getGLVersion(major, minor, ctxProfileBits, null));
     }
 
     synchronized(mappedContextTypeObjectLock) {
         ProcAddressTable table = mappedGLProcAddress.remove( contextFQN );
         if(DEBUG) {
-            System.err.println(getThreadName() + ": !!! RM GLContext GL ProcAddressTable mapping key("+contextFQN+") -> "+table.hashCode());
+            System.err.println(getThreadName() + ": RM GLContext GL ProcAddressTable mapping key("+contextFQN+") -> "+table.hashCode());
         }
     }
 
     synchronized(mappedContextTypeObjectLock) {
         ExtensionAvailabilityCache  eCache = mappedExtensionAvailabilityCache.remove( contextFQN );
         if(DEBUG) {
-            System.err.println(getThreadName() + ": !!! RM GLContext GL ExtensionAvailabilityCache mapping key("+contextFQN+") -> "+eCache.hashCode());
+            System.err.println(getThreadName() + ": RM GLContext GL ExtensionAvailabilityCache mapping key("+contextFQN+") -> "+eCache.hashCode());
         }
     }
   }
diff --git a/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java b/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
index b9c216eab..02a94f31c 100644
--- a/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
@@ -148,7 +148,7 @@ public abstract class GLDrawableImpl implements GLDrawable {
   public final synchronized void setRealized(boolean realizedArg) {
     if ( realized != realizedArg ) {
         if(DEBUG) {
-            System.err.println("setRealized: "+getClass().getName()+" "+realized+" -> "+realizedArg);
+            System.err.println(getThreadName() + ": setRealized: "+getClass().getName()+" "+realized+" -> "+realizedArg);
         }
         realized = realizedArg;
         AbstractGraphicsDevice aDevice = surface.getGraphicsConfiguration().getScreen().getDevice();
@@ -174,7 +174,7 @@ public abstract class GLDrawableImpl implements GLDrawable {
             }
         }
     } else if(DEBUG) {
-        System.err.println("setRealized: "+getClass().getName()+" "+this.realized+" == "+realizedArg);
+        System.err.println(getThreadName() + ": setRealized: "+getClass().getName()+" "+this.realized+" == "+realizedArg);
     }
   }
   protected abstract void setRealizedImpl();
@@ -210,6 +210,10 @@ public abstract class GLDrawableImpl implements GLDrawable {
                 ",\n\tWindow    "+getNativeSurface()+"]";
   }
 
+  protected static String getThreadName() {
+    return Thread.currentThread().getName();
+  }
+  
   protected GLDrawableFactory factory;
   protected NativeSurface surface;
   protected GLCapabilitiesImmutable requestedCapabilities;
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLContext.java b/src/jogl/classes/jogamp/opengl/egl/EGLContext.java
index e1473e541..308757416 100644
--- a/src/jogl/classes/jogamp/opengl/egl/EGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/egl/EGLContext.java
@@ -191,7 +191,7 @@ public abstract class EGLContext extends GLContextImpl {
                                   ", eglConfig "+config+", "+glProfile+", shareWith "+toHexString(shareWithHandle)+", error "+toHexString(EGL.eglGetError()));
         }
         if (DEBUG) {
-            System.err.println(getThreadName() + ": !!! Created OpenGL context 0x" +
+            System.err.println(getThreadName() + ": Created OpenGL context 0x" +
                                Long.toHexString(contextHandle) + 
                                ",\n\twrite surface 0x" + Long.toHexString(drawable.getHandle()) +
                                ",\n\tread  surface 0x" + Long.toHexString(drawableRead.getHandle())+
@@ -222,7 +222,7 @@ public abstract class EGLContext extends GLContextImpl {
         final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice();
         final String key = "EGL-"+adevice.getUniqueID();
         if (DEBUG) {
-          System.err.println(getThreadName() + ": !!! Initializing EGLextension address table: "+key);
+          System.err.println(getThreadName() + ": Initializing EGLextension address table: "+key);
         }
         eglQueryStringInitialized = false;
         eglQueryStringAvailable = false;
@@ -234,7 +234,7 @@ public abstract class EGLContext extends GLContextImpl {
         if(null != table) {
             eglExtProcAddressTable = (EGLExtProcAddressTable) table;
             if(DEBUG) {
-                System.err.println(getThreadName() + ": !!! GLContext EGL ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
+                System.err.println(getThreadName() + ": GLContext EGL ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
             }
         } else {
             eglExtProcAddressTable = new EGLExtProcAddressTable(new GLProcAddressResolver());
@@ -242,7 +242,7 @@ public abstract class EGLContext extends GLContextImpl {
             synchronized(mappedContextTypeObjectLock) {
                 mappedGLXProcAddress.put(key, getEGLExtProcAddressTable());
                 if(DEBUG) {
-                    System.err.println(getThreadName() + ": !!! GLContext EGL ProcAddressTable mapping key("+key+") -> "+toHexString(getEGLExtProcAddressTable().hashCode()));
+                    System.err.println(getThreadName() + ": GLContext EGL ProcAddressTable mapping key("+key+") -> "+toHexString(getEGLExtProcAddressTable().hashCode()));
                 }
             }
         }
@@ -259,7 +259,7 @@ public abstract class EGLContext extends GLContextImpl {
             final String ret = EGL.eglQueryString(((EGLDrawable)drawable).getDisplay(), 
                                                   EGL.EGL_EXTENSIONS);
             if (DEBUG) {
-              System.err.println("!!! EGL extensions: " + ret);
+              System.err.println("EGL extensions: " + ret);
             }
             sb.append(ret);
         }
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLDrawable.java b/src/jogl/classes/jogamp/opengl/egl/EGLDrawable.java
index 86fbf77ae..c4e16b784 100644
--- a/src/jogl/classes/jogamp/opengl/egl/EGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/egl/EGLDrawable.java
@@ -84,7 +84,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
         }
 
         if(DEBUG) {
-            System.err.println("createSurface using eglDisplay "+toHexString(eglDisplay)+", "+eglConfig);
+            System.err.println(getThreadName() + ": createSurface using eglDisplay "+toHexString(eglDisplay)+", "+eglConfig);
         }
 
         eglSurface = createSurface(eglDisplay, eglConfig.getNativeConfig(), surface.getSurfaceHandle());
@@ -97,7 +97,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
                     final NativeWindow nw = (NativeWindow) surface;
                     if(nw.getWindowHandle() != nw.getSurfaceHandle()) {
                         if(DEBUG) {
-                            System.err.println("Info: Creation of window surface w/ surface handle failed: "+eglConfig+", error "+toHexString(eglError0)+", retry w/ windowHandle");
+                            System.err.println(getThreadName() + ": Info: Creation of window surface w/ surface handle failed: "+eglConfig+", error "+toHexString(eglError0)+", retry w/ windowHandle");
                         }
                         eglSurface = createSurface(eglDisplay, eglConfig.getNativeConfig(), nw.getWindowHandle());
                     }
@@ -109,7 +109,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
         }
 
         if(DEBUG) {
-            System.err.println("setSurface using component: handle "+toHexString(surface.getSurfaceHandle())+" -> "+toHexString(eglSurface));
+            System.err.println(getThreadName() + ": setSurface using component: handle "+toHexString(surface.getSurfaceHandle())+" -> "+toHexString(eglSurface));
         }
     }
 
@@ -119,7 +119,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
             AbstractGraphicsDevice aDevice = aConfig.getScreen().getDevice();
             if(aDevice instanceof EGLGraphicsDevice) {
                 if(DEBUG) {
-                    System.err.println("EGLDrawable.setRealized(true): using existing EGL config - START");
+                    System.err.println(getThreadName() + ": EGLDrawable.setRealized(true): using existing EGL config - START");
                 }
                 // just fetch the data .. trust but verify ..
                 eglDisplay = aDevice.getHandle();
@@ -138,7 +138,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
                         // surface holds static EGLSurface
                         eglSurface = surface.getSurfaceHandle();
                         if(DEBUG) {
-                            System.err.println("setSurface re-using component's EGLSurface: handle "+toHexString(eglSurface));
+                            System.err.println(getThreadName() + ": setSurface re-using component's EGLSurface: handle "+toHexString(eglSurface));
                         }
                     } else {
                         // EGLSurface is ours ..
@@ -150,7 +150,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
                 }
             } else {
                 if(DEBUG) {
-                    System.err.println("EGLDrawable.setRealized(true): creating new EGL config - START");
+                    System.err.println(getThreadName() + ": EGLDrawable.setRealized(true): creating new EGL config - START");
                 }
                 // create a new EGL config ..
                 ownEGLDisplay=true;
@@ -166,7 +166,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
                 eglDisplay = EGL.eglGetDisplay(nDisplay);
                 if (eglDisplay == EGL.EGL_NO_DISPLAY) {
                     if(DEBUG) {
-                        System.err.println("eglDisplay("+toHexString(nDisplay)+" <surfaceHandle>): failed, using EGL_DEFAULT_DISPLAY");
+                        System.err.println(getThreadName() + ": eglDisplay("+toHexString(nDisplay)+" <surfaceHandle>): failed, using EGL_DEFAULT_DISPLAY");
                     }
                     nDisplay = EGL.EGL_DEFAULT_DISPLAY;
                     eglDisplay = EGL.eglGetDisplay(nDisplay);
@@ -174,7 +174,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
                 if (eglDisplay == EGL.EGL_NO_DISPLAY) {
                     throw new GLException("Failed to created EGL display: nhandle "+toHexString(nDisplay)+", "+aDevice+", error "+toHexString(EGL.eglGetError()));
                 } else if(DEBUG) {
-                    System.err.println("eglDisplay("+toHexString(nDisplay)+"): "+toHexString(eglDisplay));
+                    System.err.println(getThreadName() + ": eglDisplay("+toHexString(nDisplay)+"): "+toHexString(eglDisplay));
                 }
                 if (!EGL.eglInitialize(eglDisplay, null, null)) {
                     throw new GLException("eglInitialize failed"+", error "+Integer.toHexString(EGL.eglGetError()));
@@ -188,16 +188,16 @@ public abstract class EGLDrawable extends GLDrawableImpl {
                 if (null == eglConfig) {
                     throw new GLException("Couldn't create EGLGraphicsConfiguration from "+s);
                 } else if(DEBUG) {
-                    System.err.println("Chosen eglConfig: "+eglConfig);
+                    System.err.println(getThreadName() + ": Chosen eglConfig: "+eglConfig);
                 }
                 recreateSurface();
             }
             if(DEBUG) {
-                System.err.println("EGLDrawable.setRealized(true): END: ownDisplay "+ownEGLDisplay+", ownSurface "+ownEGLSurface+" - "+this);
+                System.err.println(getThreadName() + ": EGLDrawable.setRealized(true): END: ownDisplay "+ownEGLDisplay+", ownSurface "+ownEGLSurface+" - "+this);
             }
         } else if (ownEGLSurface && eglSurface != EGL.EGL_NO_SURFACE) {
             if(DEBUG) {
-                System.err.println("EGLDrawable.setRealized(false): ownDisplay "+ownEGLDisplay+", ownSurface "+ownEGLSurface);
+                System.err.println(getThreadName() + ": EGLDrawable.setRealized(false): ownDisplay "+ownEGLDisplay+", ownSurface "+ownEGLSurface+", eglDisplay: "+toHexString(eglDisplay)+", eglSurface: "+toHexString(eglSurface));
             }
             // Destroy the window surface
             if (!EGL.eglDestroySurface(eglDisplay, eglSurface)) {
@@ -205,6 +205,9 @@ public abstract class EGLDrawable extends GLDrawableImpl {
             }
             eglSurface = EGL.EGL_NO_SURFACE;
             if (ownEGLDisplay && EGL.EGL_NO_DISPLAY!=eglDisplay) {
+                if(DEBUG) {
+                    System.err.println(getThreadName() + ": EGLDrawable.setRealized(false): eglTerminate: "+toHexString(eglDisplay));
+                }
                 EGL.eglTerminate(eglDisplay);
             }
             eglDisplay=EGL.EGL_NO_DISPLAY;
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/egl/EGLGraphicsConfiguration.java
index ea625fb27..2f486140f 100644
--- a/src/jogl/classes/jogamp/opengl/egl/EGLGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/egl/EGLGraphicsConfiguration.java
@@ -102,7 +102,7 @@ public class EGLGraphicsConfiguration extends MutableGraphicsConfiguration imple
             // FIXME: setScreen( ... );
             setChosenCapabilities(newConfig.getChosenCapabilities());
             if(DEBUG) {
-                System.err.println("!!! updateGraphicsConfiguration(1): "+this);
+                System.err.println("updateGraphicsConfiguration(1): "+this);
             }
         }
     }
@@ -131,7 +131,7 @@ public class EGLGraphicsConfiguration extends MutableGraphicsConfiguration imple
 
         int[] stype = new int[1];
         if(! EGL.eglGetConfigAttrib(display, config, EGL.EGL_SURFACE_TYPE, stype, 0)) {
-            throw new GLException("Could not determine EGL_SURFACE_TYPE !!!");
+            throw new GLException("Could not determine EGL_SURFACE_TYPE");
         }
 
         if ( 0 != ( stype[0] & EGL.EGL_WINDOW_BIT ) ) {
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
index 279a5b9d7..4ef49e337 100644
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
@@ -231,7 +231,7 @@ public abstract class MacOSXCGLContext extends GLContextImpl
     }
     
     if (DEBUG) {
-      System.err.println("!!! Share context is " + toHexString(share) + " for " + this);
+      System.err.println("Share context is " + toHexString(share) + " for " + this);
     }
     return share;      
   }
@@ -299,7 +299,7 @@ public abstract class MacOSXCGLContext extends GLContextImpl
     final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice();
     final String key = "MacOSX-"+adevice.getUniqueID();
     if (DEBUG) {
-      System.err.println(getThreadName() + ": !!! Initializing CGL extension address table: "+key);
+      System.err.println(getThreadName() + ": Initializing CGL extension address table: "+key);
     }
     ProcAddressTable table = null;
     synchronized(mappedContextTypeObjectLock) {
@@ -308,7 +308,7 @@ public abstract class MacOSXCGLContext extends GLContextImpl
     if(null != table) {
         cglExtProcAddressTable = (CGLExtProcAddressTable) table;
         if(DEBUG) {
-            System.err.println(getThreadName() + ": !!! GLContext CGL ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
+            System.err.println(getThreadName() + ": GLContext CGL ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
         }
     } else {
         cglExtProcAddressTable = new CGLExtProcAddressTable(new GLProcAddressResolver());
@@ -316,7 +316,7 @@ public abstract class MacOSXCGLContext extends GLContextImpl
         synchronized(mappedContextTypeObjectLock) {
             mappedGLXProcAddress.put(key, getCGLExtProcAddressTable());
             if(DEBUG) {
-                System.err.println(getThreadName() + ": !!! GLContext CGL ProcAddressTable mapping key("+key+") -> "+toHexString(getCGLExtProcAddressTable().hashCode()));
+                System.err.println(getThreadName() + ": GLContext CGL ProcAddressTable mapping key("+key+") -> "+toHexString(getCGLExtProcAddressTable().hashCode()));
             }
         }
     }
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsDummyWGLDrawable.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsDummyWGLDrawable.java
index 0bd83b923..3ba5508ab 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsDummyWGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsDummyWGLDrawable.java
@@ -68,7 +68,7 @@ public class WindowsDummyWGLDrawable extends WindowsWGLDrawable {
         WindowsWGLGraphicsConfiguration config = (WindowsWGLGraphicsConfiguration)ns.getGraphicsConfiguration();
         config.updateGraphicsConfiguration(factory, ns, null);
         if (DEBUG) {
-          System.err.println("!!! WindowsDummyWGLDrawable: "+config);
+          System.err.println("WindowsDummyWGLDrawable: "+config);
         }
     } catch (Throwable t) {
         destroyImpl();
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsExternalWGLContext.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsExternalWGLContext.java
index b09a038d8..2835c00d3 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsExternalWGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsExternalWGLContext.java
@@ -62,7 +62,7 @@ public class WindowsExternalWGLContext extends WindowsWGLContext {
     super(drawable, null);
     this.contextHandle = ctx;
     if (DEBUG) {
-      System.err.println(getThreadName() + ": !!! Created external OpenGL context " + toHexString(ctx) + " for " + this);
+      System.err.println(getThreadName() + ": Created external OpenGL context " + toHexString(ctx) + " for " + this);
     }
     GLContextShareSet.contextCreated(this);
     setGLFunctionAvailability(false, 0, 0, CTX_PROFILE_COMPAT);  // use GL_VERSION
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
index 6fc5ab8d0..06dc07c1e 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
@@ -393,7 +393,7 @@ public class WindowsWGLContext extends GLContextImpl {
     final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice();
     final String key = "WGL-"+adevice.getUniqueID();
     if (DEBUG) {
-      System.err.println(getThreadName() + ": !!! Initializing WGL extension address table: "+key);
+      System.err.println(getThreadName() + ": Initializing WGL extension address table: "+key);
     }
     wglGetExtensionsStringEXTInitialized=false;
     wglGetExtensionsStringEXTAvailable=false;
@@ -407,7 +407,7 @@ public class WindowsWGLContext extends GLContextImpl {
     if(null != table) {
         wglExtProcAddressTable = (WGLExtProcAddressTable) table;
         if(DEBUG) {
-            System.err.println(getThreadName() + ": !!! GLContext WGL ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
+            System.err.println(getThreadName() + ": GLContext WGL ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
         }
     } else {
         wglExtProcAddressTable = new WGLExtProcAddressTable(new GLProcAddressResolver());
@@ -415,7 +415,7 @@ public class WindowsWGLContext extends GLContextImpl {
         synchronized(mappedContextTypeObjectLock) {
             mappedGLXProcAddress.put(key, getWGLExtProcAddressTable());
             if(DEBUG) {
-                System.err.println(getThreadName() + ": !!! GLContext WGL ProcAddressTable mapping key("+key+") -> "+toHexString(getWGLExtProcAddressTable().hashCode()));
+                System.err.println(getThreadName() + ": GLContext WGL ProcAddressTable mapping key("+key+") -> "+toHexString(getWGLExtProcAddressTable().hashCode()));
             }
         }
     }
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawable.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawable.java
index b96e0cd9b..6b6d5eb9d 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawable.java
@@ -71,7 +71,7 @@ public abstract class WindowsWGLDrawable extends GLDrawableImpl {
     WindowsWGLGraphicsConfiguration config = (WindowsWGLGraphicsConfiguration)ns.getGraphicsConfiguration();
     config.updateGraphicsConfiguration(getFactory(), ns, null);
     if (DEBUG) {
-      System.err.println("!!! WindowsWGLDrawable.setRealized(true): "+config);
+      System.err.println("WindowsWGLDrawable.setRealized(true): "+config);
     }
   }
 
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
index 5eafebc11..6784ddded 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
@@ -324,14 +324,14 @@ public class WindowsWGLDrawableFactory extends GLDrawableFactoryImpl {
                     sharedContext.release();
                 }
                 if (DEBUG) {
-                    System.err.println("!!! SharedDevice:  " + sharedDevice);
-                    System.err.println("!!! SharedScreen:  " + absScreen);
-                    System.err.println("!!! SharedContext: " + sharedContext);
-                    System.err.println("!!! pixelformat:   " + hasARBPixelFormat);
-                    System.err.println("!!! multisample:   " + hasARBMultisample);
-                    System.err.println("!!! pbuffer:       " + hasARBPBuffer);
-                    System.err.println("!!! readDrawable:  " + hasARBReadDrawableAvailable);
-                    System.err.println("!!! vendor:        " + vendor);
+                    System.err.println("SharedDevice:  " + sharedDevice);
+                    System.err.println("SharedScreen:  " + absScreen);
+                    System.err.println("SharedContext: " + sharedContext);
+                    System.err.println("pixelformat:   " + hasARBPixelFormat);
+                    System.err.println("multisample:   " + hasARBMultisample);
+                    System.err.println("pbuffer:       " + hasARBPBuffer);
+                    System.err.println("readDrawable:  " + hasARBReadDrawableAvailable);
+                    System.err.println("vendor:        " + vendor);
                 }
                 return new SharedResource(sharedDevice, absScreen, sharedDrawable, sharedContext, 
                                           hasARBPixelFormat, hasARBMultisample,
@@ -346,11 +346,11 @@ public class WindowsWGLDrawableFactory extends GLDrawableFactoryImpl {
         public void releaseSharedResource(SharedResourceRunner.Resource shared) {
             SharedResource sr = (SharedResource) shared;
             if (DEBUG) {
-              System.err.println("!!! Shutdown Shared:");
-              System.err.println("!!!   Device  : " + sr.device);
-              System.err.println("!!!   Screen  : " + sr.screen);
-              System.err.println("!!!   Drawable: " + sr.drawable);
-              System.err.println("!!!   CTX     : " + sr.context);
+              System.err.println("Shutdown Shared:");
+              System.err.println("Device  : " + sr.device);
+              System.err.println("Screen  : " + sr.screen);
+              System.err.println("Drawable: " + sr.drawable);
+              System.err.println("CTX     : " + sr.context);
             }
 
             if (null != sr.context) {
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
index d6788f1c9..cdb930280 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
@@ -181,11 +181,11 @@ public class WindowsWGLGraphicsConfiguration extends MutableGraphicsConfiguratio
                 ok = GDI.DwmExtendFrameIntoClientArea(hwnd, m);
             }
             if(DEBUG) {
-                System.err.println("!!! translucency enabled on wnd: 0x"+Long.toHexString(hwnd)+" - ok: "+ok);
+                System.err.println("translucency enabled on wnd: 0x"+Long.toHexString(hwnd)+" - ok: "+ok);
             }
         }
         if (DEBUG) {
-            System.err.println("!!! setPixelFormat (ARB): hdc "+toHexString(hdc) +", "+caps);
+            System.err.println("setPixelFormat (ARB): hdc "+toHexString(hdc) +", "+caps);
         }
         setCapsPFD(caps);
     }
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java
index f02520136..209bbe0d1 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java
@@ -209,7 +209,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
                         set = true;                        
                     }
                     if (DEBUG) {
-                        System.err.println("!!! setPixelFormat (post): hdc "+toHexString(hdc) +", "+pfdID+" -> "+config.getPixelFormatID()+", set: "+set);
+                        System.err.println("setPixelFormat (post): hdc "+toHexString(hdc) +", "+pfdID+" -> "+config.getPixelFormatID()+", set: "+set);
                         Thread.dumpStack();
                     }
                 }
@@ -259,7 +259,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
             } else {
                 System.err.println("updateGraphicsConfiguration(using target): hdc "+toHexString(hdc));
             }
-            System.err.println("!!! user chosen caps " + config.getChosenCapabilities());
+            System.err.println("user chosen caps " + config.getChosenCapabilities());
         }
         AbstractGraphicsDevice device = config.getScreen().getDevice();
         WindowsWGLDrawableFactory.SharedResource sharedResource = ((WindowsWGLDrawableFactory)factory).getOrCreateSharedResource(device);
@@ -306,7 +306,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
         GLProfile glProfile = capsChosen.getGLProfile();
         
         if(DEBUG) {
-            System.err.println("!!! translucency requested: "+(!capsChosen.isBackgroundOpaque())+", compositioning enabled: "+GDI.DwmIsCompositionEnabled()+" -> translucency "+(!isOpaque));
+            System.err.println("translucency requested: "+(!capsChosen.isBackgroundOpaque())+", compositioning enabled: "+GDI.DwmIsCompositionEnabled()+" -> translucency "+(!isOpaque));
         }
 
         WGLGLCapabilities pixelFormatCaps = null; // chosen or preset PFD ID's caps
@@ -403,7 +403,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
             }
             pixelFormatCaps = (WGLGLCapabilities) GLGraphicsConfigurationUtil.fixOpaqueGLCapabilities(pixelFormatCaps, isOpaque);
             if (DEBUG) {
-                System.err.println("!!! chosen pfdID (ARB): native recommended "+ (recommendedIndex+1) +
+                System.err.println("chosen pfdID (ARB): native recommended "+ (recommendedIndex+1) +
                                    " chosen "+pixelFormatCaps);
             }
         }
@@ -479,7 +479,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
             }
             pixelFormatCaps = availableCaps.get(chosenIndex);
             if (DEBUG) {
-                System.err.println("!!! chosen pfdID (GDI): native recommended "+ (recommendedIndex+1) +
+                System.err.println("chosen pfdID (GDI): native recommended "+ (recommendedIndex+1) +
                                    ", caps " + pixelFormatCaps);
             }
         }
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
index 0225c4284..79361ac0c 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
@@ -441,7 +441,7 @@ public abstract class X11GLXContext extends GLContextImpl {
     final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice();
     final String key = "GLX-"+adevice.getUniqueID();
     if (DEBUG) {
-      System.err.println(getThreadName() + ": !!! Initializing GLX extension address table: "+key);
+      System.err.println(getThreadName() + ": Initializing GLX extension address table: "+key);
     }
     ProcAddressTable table = null;
     synchronized(mappedContextTypeObjectLock) {
@@ -450,7 +450,7 @@ public abstract class X11GLXContext extends GLContextImpl {
     if(null != table) {
         glXExtProcAddressTable = (GLXExtProcAddressTable) table;
         if(DEBUG) {
-            System.err.println(getThreadName() + ": !!! GLContext GLX ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
+            System.err.println(getThreadName() + ": GLContext GLX ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
         }
     } else {
         glXExtProcAddressTable = new GLXExtProcAddressTable(new GLProcAddressResolver());
@@ -458,7 +458,7 @@ public abstract class X11GLXContext extends GLContextImpl {
         synchronized(mappedContextTypeObjectLock) {
             mappedGLXProcAddress.put(key, getGLXExtProcAddressTable());
             if(DEBUG) {
-                System.err.println(getThreadName() + ": !!! GLContext GLX ProcAddressTable mapping key("+key+") -> "+toHexString(getGLXExtProcAddressTable().hashCode()));
+                System.err.println(getThreadName() + ": GLContext GLX ProcAddressTable mapping key("+key+") -> "+toHexString(getGLXExtProcAddressTable().hashCode()));
                 Thread.dumpStack();
             }
         }
@@ -468,7 +468,7 @@ public abstract class X11GLXContext extends GLContextImpl {
   protected final StringBuilder getPlatformExtensionsStringImpl() {
     StringBuilder sb = new StringBuilder();
     if (DEBUG) {
-      System.err.println("!!! GLX Version client version "+ GLXUtil.getClientVersionNumber()+
+      System.err.println("GLX Version client version "+ GLXUtil.getClientVersionNumber()+
                          ", server: "+         
         ((X11GLXDrawableFactory)drawable.getFactoryImpl()).getGLXVersionNumber(drawable.getNativeSurface().getGraphicsConfiguration().getScreen().getDevice()));
     }
@@ -477,21 +477,21 @@ public abstract class X11GLXContext extends GLContextImpl {
         {
             final String ret = GLX.glXGetClientString(ns.getDisplayHandle(), GLX.GLX_EXTENSIONS);
             if (DEBUG) {
-              System.err.println("!!! GLX extensions (glXGetClientString): " + ret);
+              System.err.println("GLX extensions (glXGetClientString): " + ret);
             }
             sb.append(ret).append(" ");
         }
         {
             final String ret = GLX.glXQueryExtensionsString(ns.getDisplayHandle(), ns.getScreenIndex());
             if (DEBUG) {
-              System.err.println("!!! GLX extensions (glXQueryExtensionsString): " + ret);
+              System.err.println("GLX extensions (glXQueryExtensionsString): " + ret);
             }
             sb.append(ret).append(" ");
         }
         {
             final String ret = GLX.glXQueryServerString(ns.getDisplayHandle(), ns.getScreenIndex(), GLX.GLX_EXTENSIONS);
             if (DEBUG) {
-              System.err.println("!!! GLX extensions (glXQueryServerString): " + ret);
+              System.err.println("GLX extensions (glXQueryServerString): " + ret);
             }
             sb.append(ret).append(" ");
         }
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawable.java
index 28c02cd06..61f2ef9c9 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawable.java
@@ -60,7 +60,7 @@ public abstract class X11GLXDrawable extends GLDrawableImpl {
         config.updateGraphicsConfiguration();
 
         if (DEBUG) {
-          System.err.println("!!! X11GLXDrawable.setRealized(true): "+config);
+          System.err.println("X11GLXDrawable.setRealized(true): "+config);
         }
     }
   }
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
index 70e22476b..d356e64c6 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
@@ -250,15 +250,15 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
                     sharedContext.release();
                 }
                 if (DEBUG) {
-                    System.err.println("!!! SharedDevice:  " + sharedDevice);
-                    System.err.println("!!! SharedScreen:  " + sharedScreen);
-                    System.err.println("!!! SharedContext: " + sharedContext + ", madeCurrent " + madeCurrent);
-                    System.err.println("!!! GLX Server Vendor:      " + glXServerVendorName);
-                    System.err.println("!!! GLX Server Version:     " + glXServerVersion);
-                    System.err.println("!!! GLX Server Multisample: " + glXServerMultisampleAvailable);
-                    System.err.println("!!! GLX Client Vendor:      " + GLXUtil.getClientVendorName());
-                    System.err.println("!!! GLX Client Version:     " + GLXUtil.getClientVersionNumber());
-                    System.err.println("!!! GLX Client Multisample: " + GLXUtil.isClientMultisampleAvailable());
+                    System.err.println("SharedDevice:  " + sharedDevice);
+                    System.err.println("SharedScreen:  " + sharedScreen);
+                    System.err.println("SharedContext: " + sharedContext + ", madeCurrent " + madeCurrent);
+                    System.err.println("GLX Server Vendor:      " + glXServerVendorName);
+                    System.err.println("GLX Server Version:     " + glXServerVersion);
+                    System.err.println("GLX Server Multisample: " + glXServerMultisampleAvailable);
+                    System.err.println("GLX Client Vendor:      " + GLXUtil.getClientVendorName());
+                    System.err.println("GLX Client Version:     " + GLXUtil.getClientVersionNumber());
+                    System.err.println("GLX Client Multisample: " + GLXUtil.isClientMultisampleAvailable());
                 }
                 return new SharedResource(sharedDevice, sharedScreen, sharedDrawable, sharedContext, 
                                           glXServerVersion, glXServerVendorName, 
@@ -273,11 +273,11 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
         public void releaseSharedResource(SharedResourceRunner.Resource shared) {
             SharedResource sr = (SharedResource) shared;
             if (DEBUG) {
-                System.err.println("!!! Shutdown Shared:");
-                System.err.println("!!!   Device  : " + sr.device);
-                System.err.println("!!!   Screen  : " + sr.screen);
-                System.err.println("!!!   Drawable: " + sr.drawable);
-                System.err.println("!!!   CTX     : " + sr.context);
+                System.err.println("Shutdown Shared:");
+                System.err.println("Device  : " + sr.device);
+                System.err.println("Screen  : " + sr.screen);
+                System.err.println("Drawable: " + sr.drawable);
+                System.err.println("CTX     : " + sr.context);
                 Thread.dumpStack();
             }
 
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
index 4d0c3eeca..b2d679438 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
@@ -109,7 +109,7 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
             setXVisualInfo(newConfig.getXVisualInfo());
             setChosenCapabilities(newConfig.getChosenCapabilities());
             if(DEBUG) {
-                System.err.println("!!! updateGraphicsConfiguration: "+this);
+                System.err.println("updateGraphicsConfiguration: "+this);
             }
         }
     }
@@ -383,8 +383,8 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
       }  
       XVisualInfo res = XVisualInfo.create(infos[0]);
       if (DEBUG) {
-        System.err.println("!!! Fetched XVisualInfo for visual ID " + toHexString(visualID));
-        System.err.println("!!! Resulting XVisualInfo: visualid = " + toHexString(res.getVisualid()));
+        System.err.println("Fetched XVisualInfo for visual ID " + toHexString(visualID));
+        System.err.println("Resulting XVisualInfo: visualid = " + toHexString(res.getVisualid()));
       }
       return res;
   }
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
index f6c61973c..344c56f64 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
@@ -267,13 +267,13 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
             if(availableCaps.size() > 0) {
                 recommendedIndex = capsChosen.isBackgroundOpaque() ? 0 : -1; // only use recommended idx if not translucent
                 if (DEBUG) {
-                    System.err.println("!!! glXChooseFBConfig recommended fbcfg " + toHexString(fbcfgsL.get(0)) + ", idx " + recommendedIndex);
-                    System.err.println("!!! user  caps " + capsChosen);
-                    System.err.println("!!! fbcfg caps " + availableCaps.get(0));
+                    System.err.println("glXChooseFBConfig recommended fbcfg " + toHexString(fbcfgsL.get(0)) + ", idx " + recommendedIndex);
+                    System.err.println("user  caps " + capsChosen);
+                    System.err.println("fbcfg caps " + availableCaps.get(0));
                 }
             } else if (DEBUG) {
-                System.err.println("!!! glXChooseFBConfig no caps for recommended fbcfg " + toHexString(fbcfgsL.get(0)));
-                System.err.println("!!! user  caps " + capsChosen);
+                System.err.println("glXChooseFBConfig no caps for recommended fbcfg " + toHexString(fbcfgsL.get(0)));
+                System.err.println("user  caps " + capsChosen);
             }
         }
 
@@ -334,7 +334,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
         // 1st choice: get GLCapabilities based on users GLCapabilities setting recommendedIndex as preferred choice
         XVisualInfo recommendedVis = GLX.glXChooseVisual(display, screen, attribs, 0);
         if (DEBUG) {
-            System.err.print("!!! glXChooseVisual recommended ");
+            System.err.print("glXChooseVisual recommended ");
             if (recommendedVis == null) {
                 System.err.println("null visual");
             } else {
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
index 333486a5f..fc7aac06d 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
@@ -86,7 +86,7 @@ public class X11OnscreenGLXDrawable extends X11GLXDrawable {
             }
             glXWindow = GLX.glXCreateWindow(dpy, config.getFBConfig(), getNativeSurface().getSurfaceHandle(), null, 0);
             if (DEBUG) {
-              System.err.println("!!! X11OnscreenGLXDrawable.setRealized(true): glXWindow: "+toHexString(getNativeSurface().getSurfaceHandle())+" -> "+toHexString(glXWindow));
+              System.err.println("X11OnscreenGLXDrawable.setRealized(true): glXWindow: "+toHexString(getNativeSurface().getSurfaceHandle())+" -> "+toHexString(glXWindow));
             }
             if(0==glXWindow) {
                 throw new GLException("X11OnscreenGLXDrawable.setRealized(true): GLX.glXCreateWindow() failed: "+this);