2 files changed, 5 insertions, 2 deletions
diff --git a/src/newt/classes/jogamp/newt/driver/x11/X11Display.java b/src/newt/classes/jogamp/newt/driver/x11/X11Display.java
index 9464b979b..8243fcf9d 100644
--- a/src/newt/classes/jogamp/newt/driver/x11/X11Display.java
+++ b/src/newt/classes/jogamp/newt/driver/x11/X11Display.java
@@ -49,7 +49,7 @@ public class X11Display extends DisplayImpl {
     static {
         NEWTJNILibLoader.loadNEWT();
 
-        if ( !initIDs0() ) {
+        if ( !initIDs0(X11Util.XERROR_STACKDUMP) ) {
             throw new NativeWindowException("Failed to initialize X11Display jmethodIDs");
         }
 
@@ -139,7 +139,7 @@ public class X11Display extends DisplayImpl {
     //----------------------------------------------------------------------
     // Internals only
     //
-    private static native boolean initIDs0();
+    private static native boolean initIDs0(boolean debug);
 
     private native void CompleteDisplay0(long handle);
 
diff --git a/src/newt/classes/jogamp/newt/driver/x11/X11Window.java b/src/newt/classes/jogamp/newt/driver/x11/X11Window.java
index 143b94a57..9a5074c29 100644
--- a/src/newt/classes/jogamp/newt/driver/x11/X11Window.java
+++ b/src/newt/classes/jogamp/newt/driver/x11/X11Window.java
@@ -230,6 +230,9 @@ public class X11Window 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 final long getDisplayEDTHandle() {
         return ((X11Display) getScreen().getDisplay()).getEDTHandle();
     }