2 files changed, 10 insertions, 8 deletions
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;
             }