1 files changed, 36 insertions, 26 deletions
diff --git a/src/newt/classes/jogamp/newt/driver/opengl/JoglUtilPNGIcon.java b/src/newt/classes/jogamp/newt/driver/opengl/JoglUtilPNGIcon.java
index f9f1f13ad..f7d6b9f25 100644
--- a/src/newt/classes/jogamp/newt/driver/opengl/JoglUtilPNGIcon.java
+++ b/src/newt/classes/jogamp/newt/driver/opengl/JoglUtilPNGIcon.java
@@ -46,9 +46,17 @@ public class JoglUtilPNGIcon {
         data_size[0] = 0;
         for(int i=0; i<resources.resourceCount(); i++) {
             final URLConnection urlConn = resources.resolve(i);
-            final PNGPixelRect image = PNGPixelRect.read(urlConn.getInputStream(), PixelFormat.BGRA8888, false /* directBuffer */, 0 /* destMinStrideInBytes */, false /* destIsGLOriented */);
-            data_size[0] += 2 + image.getSize().getWidth() * image.getSize().getHeight();
-            images[i] = image;
+            if( null != urlConn ) {
+                final PNGPixelRect image = PNGPixelRect.read(urlConn.getInputStream(), PixelFormat.BGRA8888, false /* directBuffer */, 0 /* destMinStrideInBytes */, false /* destIsGLOriented */);
+                data_size[0] += 2 + image.getSize().getWidth() * image.getSize().getHeight();
+                images[i] = image;
+            } else {
+                images[i] = null;
+            }
+        }
+        if( 0 == data_size[0] ) {
+            // no image, abort
+            return null;
         }
         final boolean is64Bit = Platform.is64Bit();
         elem_bytesize[0] =  is64Bit ? Buffers.SIZEOF_LONG : Buffers.SIZEOF_INT;
@@ -56,29 +64,31 @@ public class JoglUtilPNGIcon {
 
         for(int i=0; i<images.length; i++) {
             final PNGPixelRect image1 = images[i];
-            final int width = image1.getSize().getWidth();
-            final int height = image1.getSize().getHeight();
-            if( is64Bit ) {
-                buffer.putLong(width);
-                buffer.putLong(height);
-            } else {
-                buffer.putInt(width);
-                buffer.putInt(height);
-            }
-            final ByteBuffer bb = image1.getPixels();
-            final int stride = image1.getStride();
-            for(int y=0; y<height; y++) {
-                int bbOff = y * stride;
-                for(int x=0; x<width; x++) {
-                    long pixel;
-                    pixel  = ( 0xffL & bb.get(bbOff++) );       // B
-                    pixel |= ( 0xffL & bb.get(bbOff++) ) <<  8; // G
-                    pixel |= ( 0xffL & bb.get(bbOff++) ) << 16; // R
-                    pixel |= ( 0xffL & bb.get(bbOff++) ) << 24; // A
-                    if( is64Bit ) {
-                        buffer.putLong(pixel);
-                    } else {
-                        buffer.putInt((int)pixel);
+            if( null != image1 ) {
+                final int width = image1.getSize().getWidth();
+                final int height = image1.getSize().getHeight();
+                if( is64Bit ) {
+                    buffer.putLong(width);
+                    buffer.putLong(height);
+                } else {
+                    buffer.putInt(width);
+                    buffer.putInt(height);
+                }
+                final ByteBuffer bb = image1.getPixels();
+                final int stride = image1.getStride();
+                for(int y=0; y<height; y++) {
+                    int bbOff = y * stride;
+                    for(int x=0; x<width; x++) {
+                        long pixel;
+                        pixel  = ( 0xffL & bb.get(bbOff++) );       // B
+                        pixel |= ( 0xffL & bb.get(bbOff++) ) <<  8; // G
+                        pixel |= ( 0xffL & bb.get(bbOff++) ) << 16; // R
+                        pixel |= ( 0xffL & bb.get(bbOff++) ) << 24; // A
+                        if( is64Bit ) {
+                            buffer.putLong(pixel);
+                        } else {
+                            buffer.putInt((int)pixel);
+                        }
                     }
                 }
             }