Use ExceptionUtils.dumpStack(..) instead of Thread.dumpStack()

35 files changed, 140 insertions, 103 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/FBObject.java b/src/jogl/classes/com/jogamp/opengl/FBObject.java
index 03693a688..20e576716 100644
--- a/src/jogl/classes/com/jogamp/opengl/FBObject.java
+++ b/src/jogl/classes/com/jogamp/opengl/FBObject.java
@@ -44,6 +44,7 @@ import javax.media.opengl.GLProfile;
 
 import jogamp.opengl.Debug;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.PropertyAccess;
 import com.jogamp.opengl.FBObject.Attachment.Type;
 
@@ -1071,7 +1072,7 @@ public class FBObject {
         vStatus = GL.GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT; // always incomplete w/o attachments!
         if(DEBUG) {
             System.err.println("FBObject.init() END: "+this);
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
     }
 
@@ -1306,7 +1307,7 @@ public class FBObject {
         final int glerr = gl.glGetError();
         if(DEBUG && GL.GL_NO_ERROR != glerr) {
             System.err.println("Pre-existing GL error: "+toHexString(glerr));
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         return glerr;
     }
@@ -2306,7 +2307,7 @@ public class FBObject {
     public final boolean resetSamplingSink(final GL gl) throws GLException {
         if(DEBUG) {
             System.err.println("FBObject.resetSamplingSink.0");
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
 
         if( 0 == samples ) {
diff --git a/src/jogl/classes/com/jogamp/opengl/util/AnimatorBase.java b/src/jogl/classes/com/jogamp/opengl/util/AnimatorBase.java
index 5f2db20bd..3bd013a1a 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/AnimatorBase.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/AnimatorBase.java
@@ -39,6 +39,8 @@ import javax.media.opengl.GLAutoDrawable;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLProfile;
 
+import com.jogamp.common.ExceptionUtils;
+
 /**
  * Base implementation of GLAnimatorControl<br>
  * <p>
@@ -625,7 +627,7 @@ public abstract class AnimatorBase implements GLAnimatorControl {
                     " - " + getThreadName());
             System.err.println(" - "+toString());
             if(nok) {
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         return res;
diff --git a/src/jogl/classes/com/jogamp/opengl/util/FPSAnimator.java b/src/jogl/classes/com/jogamp/opengl/util/FPSAnimator.java
index 54d40f285..1bd428c10 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/FPSAnimator.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/FPSAnimator.java
@@ -45,6 +45,8 @@ import java.util.TimerTask;
 import javax.media.opengl.GLAutoDrawable;
 import javax.media.opengl.GLException;
 
+import com.jogamp.common.ExceptionUtils;
+
 /**
  * An Animator subclass which attempts to achieve a target
  * frames-per-second rate to avoid using all CPU time. The target FPS
@@ -392,7 +394,7 @@ public class FPSAnimator extends AnimatorBase {
             if( null != task ) {
                 if( DEBUG ) {
                     System.err.println("FPSAnimator.resume() Ops: !pauseIssued, but task != null: "+toString());
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
                 task.cancel();
                 task = null;
diff --git a/src/jogl/classes/com/jogamp/opengl/util/ImmModeSink.java b/src/jogl/classes/com/jogamp/opengl/util/ImmModeSink.java
index 150e92c2e..eea76116c 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/ImmModeSink.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/ImmModeSink.java
@@ -16,6 +16,7 @@ import javax.media.opengl.fixedfunc.GLPointerFunc;
 
 import jogamp.opengl.Debug;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.common.os.Platform;
 import com.jogamp.common.util.PropertyAccess;
@@ -1376,7 +1377,7 @@ public class ImmModeSink {
 
         if(DEBUG_BUFFER) {
             System.err.println("ImmModeSink.realloc.X: "+this.toString());
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         return true;
     }
diff --git a/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderState.java b/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderState.java
index d758fc121..428252ad4 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderState.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderState.java
@@ -40,6 +40,7 @@ import javax.media.opengl.GLUniformData;
 
 import jogamp.opengl.Debug;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.os.Platform;
 import com.jogamp.common.util.PropertyAccess;
 import com.jogamp.opengl.util.GLArrayDataEditable;
@@ -161,7 +162,7 @@ public class ShaderState {
             final int newId = (null!=prog)?prog.id():-1;
             System.err.println("ShaderState: attachShaderProgram: "+curId+" -> "+newId+" (enable: "+enable+")\n\t"+shaderProgram+"\n\t"+prog);
             if(DEBUG) {
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         if(null!=shaderProgram) {
@@ -405,7 +406,7 @@ public class ShaderState {
             } else if(verbose) {
                 System.err.println("ShaderState: glGetAttribLocation failed, no location for: "+name+", loc: "+location);
                 if(DEBUG) {
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
             }
         }
@@ -448,7 +449,7 @@ public class ShaderState {
             } else if(verbose) {
                 System.err.println("ShaderState: glGetAttribLocation failed, no location for: "+name+", loc: "+location);
                 if(DEBUG) {
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
             }
         }
@@ -483,7 +484,7 @@ public class ShaderState {
                 if(verbose) {
                     System.err.println("ShaderState: glEnableVertexAttribArray failed, no index for: "+name);
                     if(DEBUG) {
-                        Thread.dumpStack();
+                        ExceptionUtils.dumpStack(System.err);
                     }
                 }
                 return false;
@@ -558,7 +559,7 @@ public class ShaderState {
                 if(verbose) {
                     System.err.println("ShaderState: glDisableVertexAttribArray failed, no index for: "+name);
                     if(DEBUG) {
-                        Thread.dumpStack();
+                        ExceptionUtils.dumpStack(System.err);
                     }
                 }
                 return false;
@@ -875,7 +876,7 @@ public class ShaderState {
             } else if(verbose) {
                 System.err.println("ShaderState: glUniform failed, no location for: "+name+", index: "+location);
                 if(DEBUG) {
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
             }
         }
@@ -916,7 +917,7 @@ public class ShaderState {
             } else if(verbose) {
                 System.err.println("ShaderState: glUniform failed, no location for: "+name+", index: "+location);
                 if(DEBUG) {
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
             }
         }
diff --git a/src/jogl/classes/javax/media/opengl/DefaultGLCapabilitiesChooser.java b/src/jogl/classes/javax/media/opengl/DefaultGLCapabilitiesChooser.java
index 412af25e0..1991ad7d0 100644
--- a/src/jogl/classes/javax/media/opengl/DefaultGLCapabilitiesChooser.java
+++ b/src/jogl/classes/javax/media/opengl/DefaultGLCapabilitiesChooser.java
@@ -46,6 +46,7 @@ import java.util.List;
 
 import javax.media.nativewindow.CapabilitiesImmutable;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.PropertyAccess;
 
 import jogamp.opengl.Debug;
@@ -126,7 +127,7 @@ public class DefaultGLCapabilitiesChooser implements GLCapabilitiesChooser {
     final int availnum = available.size();
 
     if (DEBUG) {
-      Thread.dumpStack();
+      ExceptionUtils.dumpStack(System.err);
       System.err.println("Desired: " + gldes);
       System.err.println("Available: " + availnum);
       for (int i = 0; i < available.size(); i++) {
diff --git a/src/jogl/classes/javax/media/opengl/GLProfile.java b/src/jogl/classes/javax/media/opengl/GLProfile.java
index c7aaca5d3..c1ca9a48b 100644
--- a/src/jogl/classes/javax/media/opengl/GLProfile.java
+++ b/src/jogl/classes/javax/media/opengl/GLProfile.java
@@ -41,6 +41,7 @@ import jogamp.opengl.Debug;
 import jogamp.opengl.GLDrawableFactoryImpl;
 import jogamp.opengl.DesktopGLDynamicLookupHelper;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.GlueGenVersion;
 import com.jogamp.common.jvm.JNILibLoaderBase;
 import com.jogamp.common.os.Platform;
@@ -175,7 +176,7 @@ public class GLProfile {
                 justInitialized = true;
                 if(DEBUG) {
                     System.err.println("GLProfile.initSingleton() - thread "+Thread.currentThread().getName());
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
 
                 if(ReflectionUtil.DEBUG_STATS_FORNAME) {
@@ -246,7 +247,7 @@ public class GLProfile {
                 initialized = false;
                 if(DEBUG) {
                     System.err.println("GLProfile.shutdown() - thread "+Thread.currentThread().getName());
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
                 GLDrawableFactory.shutdown();
             }
diff --git a/src/jogl/classes/jogamp/opengl/GLBufferObjectTracker.java b/src/jogl/classes/jogamp/opengl/GLBufferObjectTracker.java
index 7e49b3464..f278f73ae 100644
--- a/src/jogl/classes/jogamp/opengl/GLBufferObjectTracker.java
+++ b/src/jogl/classes/jogamp/opengl/GLBufferObjectTracker.java
@@ -34,6 +34,7 @@ import java.nio.IntBuffer;
 
 import javax.media.opengl.*;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.common.util.IntObjectHashMap;
 import com.jogamp.common.util.PropertyAccess;
@@ -266,7 +267,7 @@ public class GLBufferObjectTracker {
         if( null == objOld ) {
             if (DEBUG) {
                 System.err.printf("%s: %s.notifyBuffersDeleted()[%d/%d]: Buffer %d not tracked%n", warning, msgClazzName, i+1, count, bufferName);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return;
         }
@@ -409,7 +410,7 @@ public class GLBufferObjectTracker {
         if ( 0 == addr ) {
             if( DEBUG ) {
                 System.err.printf("%s.%s: %s MapBuffer null result for target 0x%X -> %d: %s, off %d, len %d, acc 0x%X%n", msgClazzName, msgMapBuffer, warning, target, bufferName, store, offset, length, access);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             // User shall handle the glError !
         } else {
@@ -442,14 +443,14 @@ public class GLBufferObjectTracker {
         if( 0 == bufferName ) {
             if (DEBUG) {
                 System.err.printf("%s: %s.%s: Buffer for target 0x%X not bound%n", warning, msgClazzName, msgUnmapped, target);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             store = null;
         } else {
             store = (GLBufferStorageImpl) bufferName2StorageMap.get(bufferName);
             if( DEBUG && null == store ) {
                 System.err.printf("%s: %s.%s: Buffer %d not tracked%n", warning, msgClazzName, msgUnmapped, bufferName);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         final boolean res = dispatch.unmap(target, glProcAddress);
@@ -459,7 +460,7 @@ public class GLBufferObjectTracker {
         if( DEBUG ) {
             System.err.printf("%s.%s %s target: 0x%X -> %d: %s%n", msgClazzName, msgUnmapped, res ? "OK" : "Failed", target, bufferName, store.toString(false));
             if(!res) {
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         return res;
@@ -476,7 +477,7 @@ public class GLBufferObjectTracker {
         final GLBufferStorageImpl store = (GLBufferStorageImpl) bufferName2StorageMap.get(bufferName);
         if (DEBUG && null == store ) {
             System.err.printf("%s: %s.%s: Buffer %d not tracked%n", warning, msgClazzName, msgUnmapped, bufferName);
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         final boolean res = dispatch.unmap(bufferName, glProcAddress);
         if( res && null != store ) {
@@ -485,7 +486,7 @@ public class GLBufferObjectTracker {
         if (DEBUG) {
             System.err.printf("%s.%s %s %d: %s%n", msgClazzName, msgUnmapped, res ? "OK" : "Failed", bufferName, store.toString(false));
             if(!res) {
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         return res;
@@ -505,7 +506,7 @@ public class GLBufferObjectTracker {
     public synchronized final void clear() {
         if (DEBUG) {
           System.err.printf("%s.clear() - Thread %s%n", msgClazzName, Thread.currentThread().getName());
-          // Thread.dumpStack();
+          // ExceptionUtils.dumpStackTrace(System.err);
         }
         bufferName2StorageMap.clear();
     }
diff --git a/src/jogl/classes/jogamp/opengl/GLContextImpl.java b/src/jogl/classes/jogamp/opengl/GLContextImpl.java
index bf860e92c..2a224fd0e 100644
--- a/src/jogl/classes/jogamp/opengl/GLContextImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLContextImpl.java
@@ -48,6 +48,7 @@ import java.security.PrivilegedAction;
 import java.util.HashMap;
 import java.util.Map;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.os.DynamicLookupHelper;
 import com.jogamp.common.os.Platform;
 import com.jogamp.common.util.ReflectionUtil;
@@ -305,7 +306,7 @@ public abstract class GLContextImpl extends GLContext {
         final String sgl1 = (null!=this.gl)?this.gl.getClass().getSimpleName()+", "+this.gl.toString():"<null>";
         final String sgl2 = (null!=gl)?gl.getClass().getSimpleName()+", "+gl.toString():"<null>";
         System.err.println("Info: setGL (OpenGL "+getGLVersion()+"): "+getThreadName()+", "+sgl1+" -> "+sgl2);
-        Thread.dumpStack();
+        ExceptionUtils.dumpStack(System.err);
     }
     this.gl = gl;
     return gl;
@@ -383,7 +384,7 @@ public abstract class GLContextImpl extends GLContext {
               lastCtxReleaseStack = new Throwable(msg);
               if( TRACE_SWITCH ) {
                   System.err.println(msg);
-                  // Thread.dumpStack();
+                  // ExceptionUtils.dumpStackTrace(System.err, 0, 10);
               }
           }
       }
@@ -419,7 +420,7 @@ public abstract class GLContextImpl extends GLContext {
               if ( DEBUG_TRACE_SWITCH ) {
                   if ( lock.getHoldCount() > 2 ) {
                       System.err.println(getThreadName() + ": GLContextImpl.destroy: Lock was hold more than once - makeCurrent/release imbalance: "+getTraceSwitchMsg());
-                      Thread.dumpStack();
+                      ExceptionUtils.dumpStack(System.err);
                   }
               }
               try {
@@ -712,7 +713,7 @@ public abstract class GLContextImpl extends GLContext {
         }
         if ( DEBUG_TRACE_SWITCH ) {
             System.err.println(getThreadName() + ": Create GL context "+(created?"OK":"FAILED")+": For " + getClass().getName()+" - "+getGLVersion()+" - "+getTraceSwitchMsg());
-            // Thread.dumpStack();
+            // ExceptionUtils.dumpStackTrace(System.err, 0, 10);
         }
         if(!created) {
             return CONTEXT_NOT_CURRENT;
@@ -1296,7 +1297,7 @@ public abstract class GLContextImpl extends GLContext {
     if(0 == _glGetString) {
         System.err.println("Error: Entry point to 'glGetString' is NULL.");
         if(DEBUG) {
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         return false;
     } else {
@@ -1304,7 +1305,7 @@ public abstract class GLContextImpl extends GLContext {
         if(null == _glVendor) {
             if(DEBUG) {
                 System.err.println("Warning: GL_VENDOR is NULL.");
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return false;
         }
@@ -1314,7 +1315,7 @@ public abstract class GLContextImpl extends GLContext {
         if(null == _glRenderer) {
             if(DEBUG) {
                 System.err.println("Warning: GL_RENDERER is NULL.");
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return false;
         }
@@ -1326,7 +1327,7 @@ public abstract class GLContextImpl extends GLContext {
             // FIXME
             if(DEBUG) {
                 System.err.println("Warning: GL_VERSION is NULL.");
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return false;
         }
@@ -1370,7 +1371,7 @@ public abstract class GLContextImpl extends GLContext {
     if( 0 == _glGetIntegerv ) {
         System.err.println("Error: Entry point to 'glGetIntegerv' is NULL.");
         if(DEBUG) {
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         return false;
     } else {
diff --git a/src/jogl/classes/jogamp/opengl/GLDebugMessageHandler.java b/src/jogl/classes/jogamp/opengl/GLDebugMessageHandler.java
index 7519d568b..e682431a9 100644
--- a/src/jogl/classes/jogamp/opengl/GLDebugMessageHandler.java
+++ b/src/jogl/classes/jogamp/opengl/GLDebugMessageHandler.java
@@ -33,13 +33,13 @@ import java.util.ArrayList;
 
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.opengl.GL2ES2;
-import javax.media.opengl.GL2GL3;
 import javax.media.opengl.GLDebugListener;
 import javax.media.opengl.GLDebugMessage;
 import javax.media.opengl.GLException;
 
 import jogamp.common.os.PlatformPropsImpl;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.os.Platform;
 import com.jogamp.gluegen.runtime.ProcAddressTable;
 import com.jogamp.opengl.GLExtensions;
@@ -308,7 +308,7 @@ public class GLDebugMessageHandler {
         public void messageSent(final GLDebugMessage event) {
             System.err.println(event);
             if(threadDump) {
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
     }
diff --git a/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java b/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
index b51f290e9..d7868c6dd 100644
--- a/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
@@ -67,6 +67,7 @@ import javax.media.opengl.GLFBODrawable;
 import javax.media.opengl.GLOffscreenAutoDrawable;
 import javax.media.opengl.GLProfile;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.nativewindow.MutableGraphicsConfiguration;
 import com.jogamp.nativewindow.DelegatedUpstreamSurfaceHookWithSurfaceSize;
 import com.jogamp.nativewindow.UpstreamSurfaceHookMutableSize;
@@ -195,7 +196,7 @@ public abstract class GLDrawableFactoryImpl extends GLDrawableFactory {
                 System.err.println("chosenCapsMod: "+chosenCapsMod);
                 System.err.println("OffscreenLayerSurface: **** "+ols);
                 System.err.println("Target: **** "+target);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             if( ! ( target instanceof MutableSurface ) ) {
                 throw new IllegalArgumentException("Passed NativeSurface must implement SurfaceChangeable for offscreen layered surface: "+target);
diff --git a/src/jogl/classes/jogamp/opengl/GLDrawableHelper.java b/src/jogl/classes/jogamp/opengl/GLDrawableHelper.java
index 3847b4042..6982418a9 100644
--- a/src/jogl/classes/jogamp/opengl/GLDrawableHelper.java
+++ b/src/jogl/classes/jogamp/opengl/GLDrawableHelper.java
@@ -355,7 +355,7 @@ public class GLDrawableHelper {
           }
           if( DEBUG && ( 0>=newWidth || 0>=newHeight) ) {
               System.err.println("WARNING: Odd size detected: "+newWidth+"x"+newHeight+", using safe size 1x1. Drawable "+drawable);
-              Thread.dumpStack();
+              ExceptionUtils.dumpStack(System.err);
           }
           if( 0 >= newWidth )  { newWidth = 1; validateSize=false; }
           if( 0 >= newHeight ) { newHeight = 1; validateSize=false; }
@@ -734,7 +734,7 @@ public class GLDrawableHelper {
             final int glerr0 = drawable.getGL().glGetError();
             if( GL.GL_NO_ERROR != glerr0 ) {
                 System.err.println("Info: GLDrawableHelper.reshape: pre-exisiting GL error 0x"+Integer.toHexString(glerr0));
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         drawable.getGL().glViewport(x, y, width, height);
diff --git a/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java b/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
index 544aaf064..7cd887fee 100644
--- a/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
@@ -51,6 +51,8 @@ import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLProfile;
 
+import com.jogamp.common.ExceptionUtils;
+
 public abstract class GLDrawableImpl implements GLDrawable {
   protected static final boolean DEBUG = GLDrawableFactoryImpl.DEBUG;
 
@@ -176,7 +178,7 @@ public abstract class GLDrawableImpl implements GLDrawable {
         final boolean isProxySurface = surface instanceof ProxySurface;
         if(DEBUG) {
             System.err.println(getThreadName() + ": setRealized: drawable "+getClass().getSimpleName()+", surface "+surface.getClass().getSimpleName()+", isProxySurface "+isProxySurface+": "+realized+" -> "+realizedArg);
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         final AbstractGraphicsDevice aDevice = surface.getGraphicsConfiguration().getScreen().getDevice();
         if(realizedArg) {
diff --git a/src/jogl/classes/jogamp/opengl/GLFBODrawableImpl.java b/src/jogl/classes/jogamp/opengl/GLFBODrawableImpl.java
index 991a351e6..579dc27dc 100644
--- a/src/jogl/classes/jogamp/opengl/GLFBODrawableImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLFBODrawableImpl.java
@@ -11,6 +11,7 @@ import javax.media.opengl.GLContext;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLFBODrawable;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.PropertyAccess;
 import com.jogamp.common.util.VersionUtil;
 import com.jogamp.nativewindow.MutableGraphicsConfiguration;
@@ -171,7 +172,7 @@ public class GLFBODrawableImpl extends GLDrawableImpl implements GLFBODrawable {
         if( !initialized && !realize ) {
             if( DEBUG ) {
                 System.err.println("GLFBODrawableImpl.initialize(): WARNING - Already unrealized!");
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return; // NOP, no exception for de-init twice or no init!
         }
@@ -233,7 +234,7 @@ public class GLFBODrawableImpl extends GLDrawableImpl implements GLFBODrawable {
 
         if(DEBUG) {
             System.err.println("GLFBODrawableImpl.initialize("+realize+"): "+this);
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
     }
 
@@ -284,7 +285,7 @@ public class GLFBODrawableImpl extends GLDrawableImpl implements GLFBODrawable {
         final boolean ctxSwitch = null != curContext && curContext != ourContext;
         if(DEBUG) {
             System.err.println("GLFBODrawableImpl.reset(newSamples "+newSamples+"): BEGIN - ctxSwitch "+ctxSwitch+", "+this);
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         Throwable tFBO = null;
         Throwable tGL = null;
diff --git a/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java b/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
index 003b9148e..562d4883d 100644
--- a/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
+++ b/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
@@ -33,6 +33,7 @@ import java.util.Arrays;
 
 import jogamp.opengl.Debug;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.LFRingbuffer;
 import com.jogamp.common.util.PropertyAccess;
 import com.jogamp.common.util.Ringbuffer;
@@ -262,7 +263,7 @@ public class ALAudioSink implements AudioSink {
         if( ALCConstants.ALC_NO_ERROR != alcErr ) {
             final String err = getThreadName()+": ALCError "+toHexString(alcErr)+" while makeCurrent. "+this;
             System.err.println(err);
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
             lock.unlock();
             throw new RuntimeException(err);
         }
@@ -270,7 +271,7 @@ public class ALAudioSink implements AudioSink {
         if( ALCConstants.ALC_NO_ERROR != alErr ) {
             if( DEBUG ) {
                 System.err.println(getThreadName()+": Prev - ALError "+toHexString(alErr)+" @ makeCurrent. "+this);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
     }
@@ -290,8 +291,7 @@ public class ALAudioSink implements AudioSink {
                     alc.alcDestroyContext(context);
                 } catch (final Throwable t) {
                     if( DEBUG ) {
-                        System.err.println("Caught "+t.getClass().getName()+": "+t.getMessage());
-                        t.printStackTrace();
+                        ExceptionUtils.dumpThrowable("", t);
                     }
                 }
                 context = null;
@@ -652,7 +652,7 @@ public class ALAudioSink implements AudioSink {
         alBufferBytesQueued = 0;
         if(DEBUG_TRACE) {
             System.err.println("<<  _FLUSH_  [al "+val[0]+", err "+toHexString(alErr)+"] <- "+shortString()+" @ "+getThreadName());
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
     }
 
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
index 5785f8041..c29972fca 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
@@ -48,6 +48,7 @@ import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLProfile;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.nativewindow.MutableGraphicsConfiguration;
 import com.jogamp.opengl.GLRendererQuirks;
@@ -281,7 +282,7 @@ public class WindowsWGLGraphicsConfiguration extends MutableGraphicsConfiguratio
                 System.err.println("GetPixelFormatAttribivARB: Failed - HDC 0x" + Long.toHexString(hdc) +
                                   ", value "+iresults.get(0)+
                                   ", LastError: " + GDI.GetLastError());
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return 0;
         }
@@ -290,7 +291,7 @@ public class WindowsWGLGraphicsConfiguration extends MutableGraphicsConfiguratio
             if(DEBUG) {
                 System.err.println("GetPixelFormatAttribivARB: No formats - HDC 0x" + Long.toHexString(hdc) +
                                   ", LastError: " + GDI.GetLastError());
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         return pfdIDCount;
@@ -351,7 +352,7 @@ public class WindowsWGLGraphicsConfiguration extends MutableGraphicsConfiguratio
                                                                          iattributes, accelerationMode, null) ) {
             if (DEBUG) {
                 System.err.println("wglChoosePixelFormatARB: GLCapabilities2AttribList failed: " + GDI.GetLastError());
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return null;
         }
@@ -365,7 +366,7 @@ public class WindowsWGLGraphicsConfiguration extends MutableGraphicsConfiguratio
                                              pformatsTmp, numFormatsTmp) ) {
             if (DEBUG) {
                 System.err.println("wglChoosePixelFormatARB: wglChoosePixelFormatARB failed: " + GDI.GetLastError());
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return null;
         }
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java
index ea9b86712..5d2df4784 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java
@@ -50,6 +50,7 @@ import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLProfile;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.opengl.GLRendererQuirks;
 
@@ -417,7 +418,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
                 if (null == pformats) {
                     if (DEBUG) {
                         System.err.println("updateGraphicsConfigurationARB: failed, return false");
-                        Thread.dumpStack();
+                        ExceptionUtils.dumpStack(System.err);
                     }
                     return false;
                 }
@@ -431,7 +432,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
             if( null == availableCaps || 0 == availableCaps.size() ) {
                 if (DEBUG) {
                     System.err.println("updateGraphicsConfigurationARB: wglARBPFIDs2GLCapabilities failed with " + pformats.length + " pfd ids");
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
                 return false;
             }
@@ -453,7 +454,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
             }
             if ( 0 > chosenIndex ) {
                 if (DEBUG) {
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
                 return false;
             }
@@ -603,7 +604,7 @@ public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurat
             if ( 0 > chosenIndex ) {
                 if (DEBUG) {
                     System.err.println("updateGraphicsConfigurationGDI: failed, return false");
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
                 return false;
             }
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
index 9631dbb5b..5f6960911 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
@@ -59,6 +59,7 @@ import jogamp.opengl.GLContextImpl;
 import jogamp.opengl.GLDrawableImpl;
 import jogamp.opengl.GLXExtensions;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.common.util.VersionNumber;
 import com.jogamp.gluegen.runtime.ProcAddressTable;
@@ -258,8 +259,8 @@ public class X11GLXContext extends GLContextImpl {
         ctx = _glXExt.glXCreateContextAttribsARB(display, config.getFBConfig(), share, direct, attribs);
     } catch (final RuntimeException re) {
         if(DEBUG) {
-          final Throwable t = new Throwable(getThreadName()+": Info: X11GLXContext.createContextARBImpl glXCreateContextAttribsARB failed with "+getGLVersion(major, minor, ctp, "@creation"), re);
-          t.printStackTrace();
+          System.err.println(getThreadName()+": Info: X11GLXContext.createContextARBImpl glXCreateContextAttribsARB failed with "+getGLVersion(major, minor, ctp, "@creation"));
+          ExceptionUtils.dumpThrowable("", re);
         }
     }
 
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
index 60e4438d0..65cb3c31d 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
@@ -72,6 +72,7 @@ import jogamp.opengl.GLDynamicLookupHelper;
 import jogamp.opengl.GLGraphicsConfigurationUtil;
 import jogamp.opengl.SharedResourceRunner;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.common.util.VersionNumber;
 import com.jogamp.nativewindow.x11.X11GraphicsDevice;
@@ -329,7 +330,7 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
                 System.err.println("Screen  : " + sr.screen);
                 System.err.println("Drawable: " + sr.drawable);
                 System.err.println("CTX     : " + sr.context);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
 
             if (null != sr.context) {
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
index 44479acc0..caa336d5a 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
@@ -49,6 +49,7 @@ import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLProfile;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.common.nio.PointerBuffer;
 import com.jogamp.nativewindow.x11.X11GraphicsDevice;
@@ -375,7 +376,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
         if ( 0 > chosenIndex ) {
             if (DEBUG) {
                 System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: failed, return null");
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return null;
         }
@@ -472,7 +473,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
         if ( 0 > chosenIndex ) {
             if (DEBUG) {
                 System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationXVisual: failed, return null");
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return null;
         }
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
index 6498ebd1e..32e4add75 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
@@ -37,6 +37,7 @@
 
 package com.jogamp.nativewindow.awt;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.os.Platform;
 import com.jogamp.common.util.awt.AWTEDTExecutor;
 import com.jogamp.common.util.locks.LockFactory;
@@ -558,7 +559,7 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
             surfaceLock.unlock();
             if(DEBUG) {
                 System.err.println("JAWTWindow: Can't lock surface, component peer n/a. Component displayable "+component.isDisplayable()+", "+component);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         } else {
             determineIfApplet();
@@ -765,7 +766,7 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
               // avoid deadlock ..
               if(DEBUG) {
                   System.err.println("Warning: JAWT Lock hold, but not the AWT tree lock: "+this);
-                  Thread.dumpStack();
+                  ExceptionUtils.dumpStack(System.err);
               }
               if( null == storage ) {
                   storage = new Point();
@@ -788,7 +789,7 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
       if(LOCK_SURFACE_NOT_READY == lockRes) {
           if(DEBUG) {
               System.err.println("Warning: JAWT Lock couldn't be acquired: "+this);
-              Thread.dumpStack();
+              ExceptionUtils.dumpStack(System.err);
           }
           return null;
       }
diff --git a/src/nativewindow/classes/javax/media/nativewindow/GraphicsConfigurationFactory.java b/src/nativewindow/classes/javax/media/nativewindow/GraphicsConfigurationFactory.java
index 3f8113baa..c73f544b0 100644
--- a/src/nativewindow/classes/javax/media/nativewindow/GraphicsConfigurationFactory.java
+++ b/src/nativewindow/classes/javax/media/nativewindow/GraphicsConfigurationFactory.java
@@ -33,7 +33,9 @@
 
 package javax.media.nativewindow;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.ReflectionUtil;
+
 import jogamp.nativewindow.Debug;
 import jogamp.nativewindow.DefaultGraphicsConfigurationFactoryImpl;
 
@@ -226,7 +228,7 @@ public abstract class GraphicsConfigurationFactory {
             throw new IllegalArgumentException("Given capabilities class must implement CapabilitiesImmutable");
         }
         if(DEBUG) {
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
             System.err.println("GraphicsConfigurationFactory.getFactory: "+deviceType.getName()+", "+capabilitiesType.getName());
             dumpFactories();
         }
diff --git a/src/nativewindow/classes/jogamp/nativewindow/SharedResourceToolkitLock.java b/src/nativewindow/classes/jogamp/nativewindow/SharedResourceToolkitLock.java
index 881fd56a6..b187921e4 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/SharedResourceToolkitLock.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/SharedResourceToolkitLock.java
@@ -33,6 +33,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 
 import javax.media.nativewindow.ToolkitLock;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.LongObjectHashMap;
 import com.jogamp.common.util.locks.LockFactory;
 import com.jogamp.common.util.locks.RecursiveLock;
@@ -63,7 +64,7 @@ public class SharedResourceToolkitLock implements ToolkitLock {
         if(DEBUG || verbose || handle2Lock.size() > 0 ) {
             System.err.println("SharedResourceToolkitLock: Shutdown (open: "+handle2Lock.size()+")");
             if(DEBUG) {
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             if( handle2Lock.size() > 0) {
                 dumpOpenDisplayConnections();
diff --git a/src/nativewindow/classes/jogamp/nativewindow/windows/GDIUtil.java b/src/nativewindow/classes/jogamp/nativewindow/windows/GDIUtil.java
index c409b6a39..b3cd977d4 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/windows/GDIUtil.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/windows/GDIUtil.java
@@ -31,6 +31,8 @@ import javax.media.nativewindow.util.Point;
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.NativeWindowFactory;
 
+import com.jogamp.common.ExceptionUtils;
+
 import jogamp.nativewindow.NWJNILibLoader;
 import jogamp.nativewindow.Debug;
 import jogamp.nativewindow.ToolkitProperties;
@@ -132,7 +134,7 @@ public class GDIUtil implements ToolkitProperties {
         SetProcessThreadsAffinityMask0(affinityMask, verbose);
     }
 
-    private static final void dumpStack() { Thread.dumpStack(); } // Callback for JNI
+    private static final void dumpStack() { ExceptionUtils.dumpStack(System.err); } // Callback for JNI
 
     /** Creates WNDCLASSEX instance */
     static native boolean CreateWindowClass0(long hInstance, String clazzName, long wndProc, long iconSmallHandle, long iconBigHandle);
diff --git a/src/nativewindow/classes/jogamp/nativewindow/x11/X11Util.java b/src/nativewindow/classes/jogamp/nativewindow/x11/X11Util.java
index 2414248b4..786be7cd7 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/x11/X11Util.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/x11/X11Util.java
@@ -45,6 +45,7 @@ import jogamp.nativewindow.Debug;
 import jogamp.nativewindow.NWJNILibLoader;
 import jogamp.nativewindow.ToolkitProperties;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.LongObjectHashMap;
 import com.jogamp.common.util.PropertyAccess;
 import com.jogamp.nativewindow.x11.X11GraphicsDevice;
@@ -196,7 +197,7 @@ public class X11Util implements ToolkitProperties {
                                            ", pending (open in creation order): "+pendingDisplayList.size()+
                                            ")");
                         if(DEBUG) {
-                            Thread.dumpStack();
+                            ExceptionUtils.dumpStack(System.err);
                         }
                         if( openDisplayList.size() > 0) {
                             X11Util.dumpOpenDisplayConnections();
@@ -615,7 +616,7 @@ public class X11Util implements ToolkitProperties {
     }
 
     private static final String getCurrentThreadName() { return Thread.currentThread().getName(); } // Callback for JNI
-    private static final void dumpStack() { Thread.dumpStack(); } // Callback for JNI
+    private static final void dumpStack() { ExceptionUtils.dumpStack(System.err); } // Callback for JNI
 
     private static native boolean initialize0(boolean debug);
     private static native void shutdown0();
diff --git a/src/newt/classes/com/jogamp/newt/awt/NewtCanvasAWT.java b/src/newt/classes/com/jogamp/newt/awt/NewtCanvasAWT.java
index c470f6840..e890bc640 100644
--- a/src/newt/classes/com/jogamp/newt/awt/NewtCanvasAWT.java
+++ b/src/newt/classes/com/jogamp/newt/awt/NewtCanvasAWT.java
@@ -69,6 +69,7 @@ import jogamp.newt.awt.event.AWTParentWindowAdapter;
 import jogamp.newt.driver.DriverClearFocus;
 import jogamp.opengl.awt.AWTTilePainter;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.awt.AWTEDTExecutor;
 import com.jogamp.nativewindow.awt.AWTPrintLifecycle;
 import com.jogamp.nativewindow.awt.AWTWindowClosingProtocol;
@@ -469,7 +470,7 @@ public class NewtCanvasAWT extends java.awt.Canvas implements WindowClosingProto
                 determineIfApplet();
                 if(DEBUG) {
                     System.err.println("NewtCanvasAWT.addNotify.0 - isApplet "+isApplet+", addedOnAWTEDT "+EventQueue.isDispatchThread()+" @ "+currentThreadName());
-                    Thread.dumpStack();
+                    ExceptionUtils.dumpStack(System.err);
                 }
                 jawtWindow = NewtFactoryAWT.getNativeWindow(NewtCanvasAWT.this, null != newtChild ? newtChild.getRequestedCapabilities() : null);
                 jawtWindow.setShallUseOffscreenLayer(shallUseOffscreenLayer);
@@ -493,7 +494,7 @@ public class NewtCanvasAWT extends java.awt.Canvas implements WindowClosingProto
         } else {
             if(DEBUG) {
                 System.err.println("NewtCanvasAWT.removeNotify.0 - isApplet "+isApplet+" @ "+currentThreadName());
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             componentAdded = false; // Bug 910
             awtWindowClosingProtocol.removeClosingListener();
@@ -518,7 +519,7 @@ public class NewtCanvasAWT extends java.awt.Canvas implements WindowClosingProto
     public final void destroy() {
         if(DEBUG) {
             System.err.println("NewtCanvasAWT.destroy() @ "+currentThreadName());
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         AWTEDTExecutor.singleton.invoke(true, new Runnable() {
             @Override
diff --git a/src/newt/classes/jogamp/newt/DefaultEDTUtil.java b/src/newt/classes/jogamp/newt/DefaultEDTUtil.java
index ef8ea66b6..4f2087637 100644
--- a/src/newt/classes/jogamp/newt/DefaultEDTUtil.java
+++ b/src/newt/classes/jogamp/newt/DefaultEDTUtil.java
@@ -43,6 +43,7 @@ import javax.media.nativewindow.NativeWindowException;
 
 import jogamp.common.util.locks.LockDebugUtil;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.RunnableTask;
 import com.jogamp.common.util.locks.Lock;
 import com.jogamp.newt.util.EDTUtil;
@@ -144,7 +145,7 @@ public class DefaultEDTUtil implements EDTUtil {
     public final boolean invokeStop(final boolean wait, final Runnable task) {
         if(DEBUG) {
             System.err.println(Thread.currentThread()+": Default-EDT.invokeStop wait "+wait);
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         return invokeImpl(wait, task, true /* stop */, false /* provokeError */);
     }
@@ -152,7 +153,7 @@ public class DefaultEDTUtil implements EDTUtil {
     public final boolean invokeAndWaitError(final Runnable task) {
         if(DEBUG) {
             System.err.println(Thread.currentThread()+": Default-EDT.invokeAndWaitError");
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         return invokeImpl(true /* wait */, task, false /* stop */, true /* provokeError */);
     }
@@ -177,7 +178,7 @@ public class DefaultEDTUtil implements EDTUtil {
                     // drop task ..
                     System.err.println(Thread.currentThread()+": Warning: Default-EDT about (1) to stop, won't enqueue new task: "+edt);
                     if(DEBUG) {
-                        Thread.dumpStack();
+                        ExceptionUtils.dumpStack(System.err);
                     }
                     return false;
                 }
@@ -191,7 +192,7 @@ public class DefaultEDTUtil implements EDTUtil {
                         if( edt.tasks.size()>0 ) {
                             System.err.println(Thread.currentThread()+": Warning: Default-EDT about (2) to stop, task executed. Remaining tasks: "+edt.tasks.size()+" - "+edt);
                             if(DEBUG) {
-                                Thread.dumpStack();
+                                ExceptionUtils.dumpStack(System.err);
                             }
                         }
                     }
@@ -204,7 +205,7 @@ public class DefaultEDTUtil implements EDTUtil {
                                 System.err.println(Thread.currentThread()+": Warning: Default-EDT is not running, dropping task. NEDT "+edt);
                             }
                             if(DEBUG) {
-                                Thread.dumpStack();
+                                ExceptionUtils.dumpStack(System.err);
                             }
                         }
                         return false;
diff --git a/src/newt/classes/jogamp/newt/DisplayImpl.java b/src/newt/classes/jogamp/newt/DisplayImpl.java
index 84ce45238..5f67c95c1 100644
--- a/src/newt/classes/jogamp/newt/DisplayImpl.java
+++ b/src/newt/classes/jogamp/newt/DisplayImpl.java
@@ -34,6 +34,7 @@
 
 package jogamp.newt;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.common.util.IOUtil;
 import com.jogamp.common.util.ReflectionUtil;
@@ -398,7 +399,7 @@ public abstract class DisplayImpl extends Display {
                 if( DEBUG ) {
                     if ( !res ) {
                         System.err.println("Warning: invokeStop() failed");
-                        Thread.dumpStack();
+                        ExceptionUtils.dumpStack(System.err);
                     }
                 }
             }
@@ -416,7 +417,7 @@ public abstract class DisplayImpl extends Display {
                 if( !_edtUtil.isRunning() ) { // // volatile dbl-checked-locking OK
                     if( DEBUG ) {
                         System.err.println("Info: EDT start "+Thread.currentThread().getName()+", "+this);
-                        Thread.dumpStack();
+                        ExceptionUtils.dumpStack(System.err);
                     }
                     _edtUtil.start();
                 }
@@ -428,7 +429,7 @@ public abstract class DisplayImpl extends Display {
             }
             if( DEBUG ) {
                 System.err.println("Warning: invoke(wait "+wait+", ..) on EDT failed .. invoke on current thread "+Thread.currentThread().getName());
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         task.run();
@@ -685,7 +686,7 @@ public abstract class DisplayImpl extends Display {
             if(null == event) {
                 // Ooops ?
                 System.err.println("Warning: event of eventTask is NULL");
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
                 return;
             }
             dispatchMessage(event);
@@ -739,7 +740,7 @@ public abstract class DisplayImpl extends Display {
             // oops .. we are already dead
             if(DEBUG) {
                 System.err.println("Warning: EDT already stopped: wait:="+wait+", "+e);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return;
         }
diff --git a/src/newt/classes/jogamp/newt/WindowImpl.java b/src/newt/classes/jogamp/newt/WindowImpl.java
index b62628962..0c4dcd192 100644
--- a/src/newt/classes/jogamp/newt/WindowImpl.java
+++ b/src/newt/classes/jogamp/newt/WindowImpl.java
@@ -63,6 +63,7 @@ import javax.media.nativewindow.util.RectangleImmutable;
 import jogamp.nativewindow.SurfaceScaleUtils;
 import jogamp.nativewindow.SurfaceUpdatedHelper;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.ArrayHashSet;
 import com.jogamp.common.util.IntBitfield;
 import com.jogamp.common.util.PropertyAccess;
@@ -1992,7 +1993,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
     protected final void definePosition(final int x, final int y) {
         if(DEBUG_IMPLEMENTATION) {
             System.err.println("definePosition: "+this.x+"/"+this.y+" -> "+x+"/"+y);
-            // Thread.dumpStack();
+            // ExceptionUtils.dumpStackTrace(System.err);
         }
         autoPosition = false;
         this.x = x; this.y = y;
@@ -2008,7 +2009,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
         if(DEBUG_IMPLEMENTATION) {
             System.err.println("defineSize: win["+this.winWidth+"x"+this.winHeight+" -> "+winWidth+"x"+winHeight+
                                "], pixel["+this.pixWidth+"x"+this.pixHeight+" -> "+pixWidth+"x"+pixHeight+"]");
-            // Thread.dumpStack();
+            // ExceptionUtils.dumpStackTrace(System.err);
         }
         this.winWidth = winWidth; this.winHeight = winHeight;
         this.pixWidth = pixWidth; this.pixHeight = pixHeight;
@@ -2637,7 +2638,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                         final boolean discardTO = QUEUED_EVENT_TO <= System.currentTimeMillis()-e.getWhen();
                         if(DEBUG_IMPLEMENTATION) {
                             System.err.println("Window.consumeEvent: REPAINT "+Thread.currentThread().getName()+" - queued "+e+", discard-to "+discardTO);
-                            // Thread.dumpStack();
+                            // ExceptionUtils.dumpStackTrace(System.err);
                         }
                         return discardTO; // discardTO:=true -> consumed
                     }
@@ -2653,7 +2654,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                     final boolean discardTO = QUEUED_EVENT_TO <= System.currentTimeMillis()-e.getWhen();
                     if(DEBUG_IMPLEMENTATION) {
                         System.err.println("Window.consumeEvent: RESIZED "+Thread.currentThread().getName()+" - queued "+e+", discard-to "+discardTO);
-                        // Thread.dumpStack();
+                        // ExceptionUtils.dumpStackTrace(System.err);
                     }
                     return discardTO; // discardTO:=true -> consumed
                 }
@@ -3745,7 +3746,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                 throw new NativeWindowException(msg);
             } else if (DEBUG_IMPLEMENTATION) {
                 System.err.println(msg);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return -1;
         } else if( 0 < remaining ){
@@ -3791,7 +3792,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                 throw new NativeWindowException(msg);
             } else if (DEBUG_IMPLEMENTATION) {
                 System.err.println(msg);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
             return false;
         } else {
@@ -3851,7 +3852,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                 } else {
                     System.err.println("Auto position not reached within timeout, has "+getX()+"/"+getY()+", autoPosition "+autoPosition+", remaining "+remaining);
                 }
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         return ok;
@@ -3892,7 +3893,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
         final WindowClosingMode mode = force ? WindowClosingMode.DISPOSE_ON_CLOSE : defMode;
         if(DEBUG_IMPLEMENTATION) {
             System.err.println("Window.windowDestroyNotify(isNativeValid: "+isNativeValid()+", force: "+force+", mode "+defMode+" -> "+mode+") "+getThreadName()+": "+this);
-            // Thread.dumpStack();
+            // ExceptionUtils.dumpStackTrace(System.err);
         }
 
         final boolean destroyed;
diff --git a/src/newt/classes/jogamp/newt/driver/android/WindowDriver.java b/src/newt/classes/jogamp/newt/driver/android/WindowDriver.java
index 786ebb31c..6179626d4 100644
--- a/src/newt/classes/jogamp/newt/driver/android/WindowDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/android/WindowDriver.java
@@ -47,6 +47,7 @@ import javax.media.opengl.GLCapabilitiesChooser;
 import javax.media.opengl.GLCapabilitiesImmutable;
 import javax.media.opengl.GLException;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.os.AndroidVersion;
 import com.jogamp.nativewindow.egl.EGLGraphicsDevice;
 import com.jogamp.newt.MonitorDevice;
@@ -282,7 +283,7 @@ public class WindowDriver extends jogamp.newt.WindowImpl implements Callback2 {
     protected final boolean canCreateNativeImpl() {
         Log.d(MD.TAG, "canCreateNativeImpl.0: surfaceHandle ready "+(0!=surfaceHandle)+" - on thread "+Thread.currentThread().getName());
         if(Window.DEBUG_IMPLEMENTATION) {
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
 
         if( isFullscreen() ) {
@@ -386,7 +387,7 @@ public class WindowDriver extends jogamp.newt.WindowImpl implements Callback2 {
                     "], pixel["+getSurfaceWidth()+"x"+getSurfaceHeight()+"],"+
                     " - on thread "+Thread.currentThread().getName());
         if(Window.DEBUG_IMPLEMENTATION) {
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
 
         setupInputListener(false);
@@ -557,7 +558,7 @@ public class WindowDriver extends jogamp.newt.WindowImpl implements Callback2 {
     public final void surfaceChanged(final SurfaceHolder aHolder, final int aFormat, final int aWidth, final int aHeight) {
         Log.d(MD.TAG, "surfaceChanged: f "+nativeFormat+" -> "+aFormat+", "+aWidth+"x"+aHeight+", current surfaceHandle: 0x"+Long.toHexString(surfaceHandle)+" - on thread "+Thread.currentThread().getName());
         if(Window.DEBUG_IMPLEMENTATION) {
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         if(0!=surfaceHandle && androidFormat != aFormat ) {
             // re-create
@@ -611,7 +612,7 @@ public class WindowDriver extends jogamp.newt.WindowImpl implements Callback2 {
     public final void surfaceDestroyed(final SurfaceHolder holder) {
         Log.d(MD.TAG, "surfaceDestroyed - on thread "+Thread.currentThread().getName());
         windowDestroyNotify(true); // actually too late .. however ..
-        Thread.dumpStack();
+        ExceptionUtils.dumpStack(System.err);
     }
 
     @Override
diff --git a/src/newt/classes/jogamp/newt/driver/awt/AWTEDTUtil.java b/src/newt/classes/jogamp/newt/driver/awt/AWTEDTUtil.java
index 39e68e48c..090fa1653 100644
--- a/src/newt/classes/jogamp/newt/driver/awt/AWTEDTUtil.java
+++ b/src/newt/classes/jogamp/newt/driver/awt/AWTEDTUtil.java
@@ -32,6 +32,7 @@ import java.awt.EventQueue;
 
 import javax.media.nativewindow.NativeWindowException;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.RunnableTask;
 import com.jogamp.common.util.awt.AWTEDTExecutor;
 import com.jogamp.newt.util.EDTUtil;
@@ -140,7 +141,7 @@ public class AWTEDTUtil implements EDTUtil {
                     // drop task ..
                     System.err.println(Thread.currentThread()+": Warning: AWT-EDT about (1) to stop, won't enqueue new task: "+nedt);
                     if(DEBUG) {
-                        Thread.dumpStack();
+                        ExceptionUtils.dumpStack(System.err);
                     }
                     return false;
                 }
@@ -161,7 +162,7 @@ public class AWTEDTUtil implements EDTUtil {
                                 System.err.println(Thread.currentThread()+": Warning: AWT-EDT is not running, dropping task. NEDT "+nedt);
                             }
                             if(DEBUG) {
-                                Thread.dumpStack();
+                                ExceptionUtils.dumpStack(System.err);
                             }
                         }
                         return false;
diff --git a/src/newt/classes/jogamp/newt/driver/x11/WindowDriver.java b/src/newt/classes/jogamp/newt/driver/x11/WindowDriver.java
index afa9786e2..4b8e71571 100644
--- a/src/newt/classes/jogamp/newt/driver/x11/WindowDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/x11/WindowDriver.java
@@ -50,6 +50,7 @@ import javax.media.nativewindow.util.Insets;
 import javax.media.nativewindow.util.InsetsImmutable;
 import javax.media.nativewindow.util.Point;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.nativewindow.x11.X11GraphicsDevice;
 import com.jogamp.nativewindow.x11.X11GraphicsScreen;
@@ -424,7 +425,7 @@ public class WindowDriver extends WindowImpl {
     // Internals only
     //
     private static final String getCurrentThreadName() { return Thread.currentThread().getName(); } // Callback for JNI
-    private static final void dumpStack() { Thread.dumpStack(); } // Callback for JNI
+    private static final void dumpStack() { ExceptionUtils.dumpStack(System.err); } // Callback for JNI
 
     private final <T> T runWithLockedDisplayDevice(final DisplayRunnable<T> action) {
         return ((DisplayDriver) getScreen().getDisplay()).runWithLockedDisplayDevice(action);
diff --git a/src/newt/classes/jogamp/newt/swt/SWTEDTUtil.java b/src/newt/classes/jogamp/newt/swt/SWTEDTUtil.java
index 794e989a6..1b4b43a6e 100644
--- a/src/newt/classes/jogamp/newt/swt/SWTEDTUtil.java
+++ b/src/newt/classes/jogamp/newt/swt/SWTEDTUtil.java
@@ -31,6 +31,7 @@ import javax.media.nativewindow.NativeWindowException;
 
 import jogamp.newt.Debug;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.RunnableTask;
 import com.jogamp.newt.util.EDTUtil;
 
@@ -170,7 +171,7 @@ public class SWTEDTUtil implements EDTUtil {
                     // drop task ..
                     if(DEBUG) {
                         System.err.println(Thread.currentThread()+": Warning: SWT-EDT about (1) to stop, won't enqueue new task: "+nedt+", isRunning "+nedt.isRunning+", shouldStop "+nedt.shouldStop);
-                        Thread.dumpStack();
+                        ExceptionUtils.dumpStack(System.err);
                     }
                     return false;
                 }
@@ -195,7 +196,7 @@ public class SWTEDTUtil implements EDTUtil {
                                 System.err.println(Thread.currentThread()+": Warning: SWT-EDT is not running, dropping task. NEDT "+nedt);
                             }
                             if(DEBUG) {
-                                Thread.dumpStack();
+                                ExceptionUtils.dumpStack(System.err);
                             }
                         }
                         return false;
@@ -212,7 +213,7 @@ public class SWTEDTUtil implements EDTUtil {
                         if( swtDisplay.isDisposed() ) {
                             System.err.println(Thread.currentThread()+": Warning: SWT-EDT is about (3) to stop and stopped already, dropping task. "+nedt);
                             if(DEBUG) {
-                                Thread.dumpStack();
+                                ExceptionUtils.dumpStack(System.err);
                             }
                             return false;
                         }
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestSharedContextNewtAWTBug523.java b/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestSharedContextNewtAWTBug523.java
index d3cdf5e95..95bec26fa 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestSharedContextNewtAWTBug523.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestSharedContextNewtAWTBug523.java
@@ -72,6 +72,7 @@ import org.junit.Test;
 import org.junit.FixMethodOrder;
 import org.junit.runners.MethodSorters;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.newt.awt.NewtCanvasAWT;
 import com.jogamp.newt.opengl.GLWindow;
@@ -476,7 +477,7 @@ public class TestSharedContextNewtAWTBug523 extends UITestCase {
             final String errStr = "GL-Error: "+prefix + " on obj 0x"+Integer.toHexString(obj.hashCode())+", OpenGL error: 0x" + Integer.toHexString(glError);
             if( errorSet.add(errStr) ) {
                 System.err.println(errStr);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
         final int status = gl.glCheckFramebufferStatus(GL.GL_FRAMEBUFFER);
@@ -484,7 +485,7 @@ public class TestSharedContextNewtAWTBug523 extends UITestCase {
             final String errStr = "GL-Error: "+prefix + " on obj 0x"+Integer.toHexString(obj.hashCode())+", glCheckFramebufferStatus: 0x" + Integer.toHexString(status);
             if( errorSet.add(errStr) ) {
                 System.err.println(errStr);
-                Thread.dumpStack();
+                ExceptionUtils.dumpStack(System.err);
             }
         }
     }
diff --git a/src/test/com/jogamp/opengl/test/junit/util/AWTRobotUtil.java b/src/test/com/jogamp/opengl/test/junit/util/AWTRobotUtil.java
index 31d6b887d..c6ceab34e 100644
--- a/src/test/com/jogamp/opengl/test/junit/util/AWTRobotUtil.java
+++ b/src/test/com/jogamp/opengl/test/junit/util/AWTRobotUtil.java
@@ -46,6 +46,7 @@ import javax.media.opengl.GLDrawable;
 
 import org.junit.Assert;
 
+import com.jogamp.common.ExceptionUtils;
 import com.jogamp.common.util.awt.AWTEDTExecutor;
 import com.jogamp.newt.event.WindowEvent;
 
@@ -229,7 +230,7 @@ public class AWTRobotUtil {
             System.err.println("*** AWTRobotUtil.toFrontAndRequestFocus() UI failure");
             System.err.println("*** window: "+window);
             System.err.println("*** window.hasFocus(): "+window.hasFocus());
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         return success;
     }
@@ -442,7 +443,7 @@ public class AWTRobotUtil {
             }
             System.err.println("*** gain: "+gain);
             System.err.println("*** lost: "+lost);
-            Thread.dumpStack();
+            ExceptionUtils.dumpStack(System.err);
         }
         Assert.assertTrue("Did not gain focus", hasFocus);
     }