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

13 files changed, 55 insertions, 44 deletions

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;
         }