Bug 1237: Adopt GlueGen's clarification of IOUtil.getResource(..), commit d78bb1be0a6290cb94918b21865a023c01825048

- Skip relative lookup for IOUtil.ClassResources using 'asset' only (from JAR file)

- Tested w/ jar file and build-dir, see scripts/tests.sh 'USE_BUILDDIR'

27 files changed, 83 insertions, 85 deletions

diff --git a/src/jogl/classes/com/jogamp/graph/font/FontFactory.java b/src/jogl/classes/com/jogamp/graph/font/FontFactory.java
index be16e030f..76badcda8 100644
--- a/src/jogl/classes/com/jogamp/graph/font/FontFactory.java
+++ b/src/jogl/classes/com/jogamp/graph/font/FontFactory.java
@@ -199,7 +199,7 @@ public class FontFactory {
                 throw new IOException(e);
             }
         } else {
-            stream = IOUtil.getResource(context, fname).getInputStream();
+            stream = IOUtil.getResource(fname, context.getClassLoader(), context).getInputStream();
         }
         if( null != stream ) {
             return FontFactory.get ( stream, true ) ;
diff --git a/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java b/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java
index e5ef3b268..173c394ba 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java
@@ -1106,7 +1106,7 @@ public class ShaderCode {
                     nextConn = IOUtil.openURL(relUri.toURL(), "ShaderCode.relativeOf ");
                     if (nextConn == null) {
                         // Try relative of class and absolute
-                        nextConn = IOUtil.getResource(context, includeFile);
+                        nextConn = IOUtil.getResource(includeFile, context.getClassLoader(), context);
                     }
                     if (nextConn == null) {
                         // Fail
@@ -1158,7 +1158,7 @@ public class ShaderCode {
      * @see IOUtil#getResource(Class, String)
      */
     public static CharSequence readShaderSource(final Class<?> context, final String path, final boolean mutableStringBuilder) throws IOException {
-        final URLConnection conn = IOUtil.getResource(context, path);
+        final URLConnection conn = IOUtil.getResource(path, context.getClassLoader(), context);
         if (conn == null) {
             return null;
         }
@@ -1204,7 +1204,7 @@ public class ShaderCode {
      * @see IOUtil#getResource(Class, String)
      */
     public static ByteBuffer readShaderBinary(final Class<?> context, final String path) throws IOException {
-        final URLConnection conn = IOUtil.getResource(context, path);
+        final URLConnection conn = IOUtil.getResource(path, context.getClassLoader(), context);
         if (conn == null) {
             return null;
         }
diff --git a/src/jogl/classes/com/jogamp/opengl/util/glsl/sdk/CompileShader.java b/src/jogl/classes/com/jogamp/opengl/util/glsl/sdk/CompileShader.java
index f5dec1cab..376afb8ce 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/glsl/sdk/CompileShader.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/glsl/sdk/CompileShader.java
@@ -52,7 +52,7 @@ public abstract class CompileShader {
         final String justName = basename(resourceName);
         outName = justName.substring(0, justName.length() - suffixLen) +
                   ShaderCode.getFileSuffix(true, type);
-        final URL resourceURL = IOUtil.getResource(null, resourceName).getURL();
+        final URL resourceURL = IOUtil.getResource(resourceName, this.getClass().getClassLoader(), null).getURL();
         final String dirName = dirname(resourceURL.getPath());
 
         outName = dirName + File.separator + "bin" + File.separator +
@@ -64,7 +64,7 @@ public abstract class CompileShader {
     public void processOneShader(final String resourceName, final String outName, final int type)
         throws IOException, UnsupportedEncodingException, InterruptedException
     {
-        final URL resourceURL = IOUtil.getResource(null, resourceName).getURL();
+        final URL resourceURL = IOUtil.getResource(resourceName, this.getClass().getClassLoader(), null).getURL();
         final String dirName = dirname(resourceURL.getPath());
 
         final CharSequence shader = ShaderCode.readShaderSource(null, resourceName, false);
diff --git a/src/jogl/classes/com/jogamp/opengl/util/texture/ImageSequence.java b/src/jogl/classes/com/jogamp/opengl/util/texture/ImageSequence.java
index 0f51c2e14..e485e5452 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/texture/ImageSequence.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/texture/ImageSequence.java
@@ -77,7 +77,7 @@ public class ImageSequence implements TextureSequence {
     }
 
     public final void addFrame(final GL gl, final Class<?> context, final String imageResourcePath, final String imageSuffix) throws IOException {
-        final URLConnection urlConn = IOUtil.getResource(context, imageResourcePath);
+        final URLConnection urlConn = IOUtil.getResource(imageResourcePath, context.getClassLoader(), context);
         if(null != urlConn) {
             final TextureData texData = TextureIO.newTextureData(GLProfile.getGL2ES2(), urlConn.getInputStream(), false, imageSuffix);
             final Texture tex = new Texture(getTextureTarget());
diff --git a/src/jogl/classes/jogamp/graph/font/UbuntuFontLoader.java b/src/jogl/classes/jogamp/graph/font/UbuntuFontLoader.java
index e4b0cb2a8..f52292769 100644
--- a/src/jogl/classes/jogamp/graph/font/UbuntuFontLoader.java
+++ b/src/jogl/classes/jogamp/graph/font/UbuntuFontLoader.java
@@ -52,7 +52,6 @@ public class UbuntuFontLoader implements FontSet {
     private static final Uri.Encoded jarSubDir = Uri.Encoded.cast("atomic/");
     private static final Uri.Encoded jarName = Uri.Encoded.cast("jogl-fonts-p0.jar");
 
-    private static final String relFontPath = "fonts/ubuntu/" ;
     private static final String absFontPath = "jogamp/graph/font/fonts/ubuntu/" ;
 
     private static final FontSet fontLoader = new UbuntuFontLoader();
@@ -160,15 +159,14 @@ public class UbuntuFontLoader implements FontSet {
                 }
             }
         }
-        final String path = useTempJARCache ? absFontPath : relFontPath;
         try {
-            final Font f = abspathImpl(path+fname, family, style);
+            final Font f = abspathImpl(absFontPath+fname, family, style);
             if( null != f ) {
                 return f;
             }
-            throw new IOException(String.format("Problem loading font %s, stream %s%s", fname, path, fname));
+            throw new IOException(String.format("Problem loading font %s, stream %s%s", fname, absFontPath, fname));
         } catch(final Exception e) {
-            throw new IOException(String.format("Problem loading font %s, stream %s%s", fname, path, fname), e);
+            throw new IOException(String.format("Problem loading font %s, stream %s%s", fname, absFontPath, fname), e);
         }
     }
     private Font abspathImpl(final String fname, final int family, final int style) throws IOException {
@@ -190,7 +188,7 @@ public class UbuntuFontLoader implements FontSet {
                 throw new IOException(privErr[0]);
             }
         } else {
-            final URLConnection urlConn = IOUtil.getResource(UbuntuFontLoader.class, fname);
+            final URLConnection urlConn = IOUtil.getResource(fname, getClass().getClassLoader(), null);
             stream = null != urlConn ? urlConn.getInputStream() : null;
         }
         if(null != stream) {
diff --git a/src/newt/classes/com/jogamp/newt/NewtFactory.java b/src/newt/classes/com/jogamp/newt/NewtFactory.java
index 2ed2194d8..f7b5a1340 100644
--- a/src/newt/classes/com/jogamp/newt/NewtFactory.java
+++ b/src/newt/classes/com/jogamp/newt/NewtFactory.java
@@ -59,6 +59,7 @@ public class NewtFactory {
     public static final String DRIVER_DEFAULT_ROOT_PACKAGE = "jogamp.newt.driver";
 
     private static IOUtil.ClassResources defaultWindowIcons;
+    private static String sysPaths = "newt/data/jogamp-16x16.png newt/data/jogamp-32x32.png";
 
     static {
         AccessController.doPrivileged(new PrivilegedAction<Object>() {
@@ -67,12 +68,11 @@ public class NewtFactory {
                 NativeWindowFactory.initSingleton(); // last resort ..
                 {
                     /** See API Doc in {@link Window} ! */
-                    final String[] paths = PropertyAccess.getProperty("newt.window.icons", true, "newt/data/jogamp-16x16.png newt/data/jogamp-32x32.png").split("\\s");
+                    final String[] paths = PropertyAccess.getProperty("newt.window.icons", true, sysPaths).split("\\s");
                     if( paths.length < 2 ) {
                         throw new IllegalArgumentException("Property 'newt.window.icons' did not specify at least two PNG icons, but "+Arrays.toString(paths));
                     }
-                    final Class<?> clazz = NewtFactory.class;
-                    defaultWindowIcons = new IOUtil.ClassResources(clazz, paths);
+                    defaultWindowIcons = new IOUtil.ClassResources(paths, NewtFactory.class.getClassLoader(), null);
                 }
                 return null;
             } } );
diff --git a/src/newt/classes/com/jogamp/newt/opengl/util/NEWTDemoListener.java b/src/newt/classes/com/jogamp/newt/opengl/util/NEWTDemoListener.java
index d49ddab42..84c4683db 100644
--- a/src/newt/classes/com/jogamp/newt/opengl/util/NEWTDemoListener.java
+++ b/src/newt/classes/com/jogamp/newt/opengl/util/NEWTDemoListener.java
@@ -440,7 +440,7 @@ public class NEWTDemoListener extends WindowAdapter implements KeyListener, Mous
             disp.createNative();
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(disp.getClass(), new String[] { "newt/data/cross-grey-alpha-16x16.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "newt/data/cross-grey-alpha-16x16.png" }, disp.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 8, 8);
                     pointerIcons.add(_pointerIcon);
@@ -451,7 +451,7 @@ public class NEWTDemoListener extends WindowAdapter implements KeyListener, Mous
             }
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(disp.getClass(), new String[] { "newt/data/pointer-grey-alpha-16x24.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "newt/data/pointer-grey-alpha-16x24.png" }, disp.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 0, 0);
                     pointerIcons.add(_pointerIcon);
@@ -462,7 +462,7 @@ public class NEWTDemoListener extends WindowAdapter implements KeyListener, Mous
             }
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(disp.getClass(), new String[] { "arrow-red-alpha-64x64.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "arrow-red-alpha-64x64.png" }, disp.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 0, 0);
                     pointerIcons.add(_pointerIcon);
@@ -473,7 +473,7 @@ public class NEWTDemoListener extends WindowAdapter implements KeyListener, Mous
             }
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(disp.getClass(), new String[] { "arrow-blue-alpha-64x64.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "arrow-blue-alpha-64x64.png" }, disp.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 0, 0);
                     pointerIcons.add(_pointerIcon);
@@ -484,7 +484,7 @@ public class NEWTDemoListener extends WindowAdapter implements KeyListener, Mous
             }
             if( PNGIcon.isAvailable() ) {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(disp.getClass(), new String[] { "jogamp-pointer-64x64.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "jogamp-pointer-64x64.png" }, disp.getClass().getClassLoader(), null);
                 try {
                     final URLConnection urlConn = res.resolve(0);
                     if( null != urlConn ) {
diff --git a/src/newt/classes/jogamp/newt/driver/bcm/vc/iv/DisplayDriver.java b/src/newt/classes/jogamp/newt/driver/bcm/vc/iv/DisplayDriver.java
index d111e850e..715d32ceb 100644
--- a/src/newt/classes/jogamp/newt/driver/bcm/vc/iv/DisplayDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/bcm/vc/iv/DisplayDriver.java
@@ -67,7 +67,7 @@ public class DisplayDriver extends DisplayImpl {
 
         PNGPixelRect image = null;
         if( DisplayImpl.isPNGUtilAvailable() ) {
-            final IOUtil.ClassResources res = new IOUtil.ClassResources(DisplayDriver.class, new String[] { "newt/data/pointer-grey-alpha-16x24.png" } );
+            final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "newt/data/pointer-grey-alpha-16x24.png" }, DisplayDriver.class.getClassLoader(), null);
             try {
                 final URLConnection urlConn = res.resolve(0);
                 image = PNGPixelRect.read(urlConn.getInputStream(), PixelFormat.BGRA8888, false /* directBuffer */, 0 /* destMinStrideInBytes */, false /* destIsGLOriented */);
diff --git a/src/test/com/jogamp/opengl/test/junit/graph/FontSet01.java b/src/test/com/jogamp/opengl/test/junit/graph/FontSet01.java
index 0666ec4db..38eda9adf 100644
--- a/src/test/com/jogamp/opengl/test/junit/graph/FontSet01.java
+++ b/src/test/com/jogamp/opengl/test/junit/graph/FontSet01.java
@@ -14,22 +14,22 @@ public class FontSet01 {
         fonts[i++] = FontFactory.get(FontFactory.UBUNTU).getDefault(); // FontSet.FAMILY_REGULAR, FontSet.STYLE_NONE
         fonts[i++] = FontFactory.get(FontFactory.UBUNTU).get(FontSet.FAMILY_REGULAR, FontSet.STYLE_ITALIC);
         fonts[i++] = FontFactory.get(FontFactory.UBUNTU).get(FontSet.FAMILY_REGULAR, FontSet.STYLE_BOLD);
-        fonts[i++] = FontFactory.get(IOUtil.getResource(TestTextRendererNEWTBugXXXX.class,
-                "fonts/freefont/FreeMono.ttf").getInputStream(), true);
-        fonts[i++] = FontFactory.get(IOUtil.getResource(TestTextRendererNEWTBugXXXX.class,
-                "fonts/freefont/FreeMonoBold.ttf").getInputStream(), true);
-        fonts[i++] = FontFactory.get(IOUtil.getResource(TestTextRendererNEWTBugXXXX.class,
-                "fonts/freefont/FreeSans.ttf").getInputStream(), true);
-        fonts[i++] = FontFactory.get(IOUtil.getResource(TestTextRendererNEWTBugXXXX.class,
-                "fonts/freefont/FreeSansBold.ttf").getInputStream(), true);
-        fonts[i++] = FontFactory.get(IOUtil.getResource(TestTextRendererNEWTBugXXXX.class,
-                "fonts/freefont/FreeSerif.ttf").getInputStream(), true);
-        fonts[i++] = FontFactory.get(IOUtil.getResource(TestTextRendererNEWTBugXXXX.class,
-                "fonts/freefont/FreeSerifBold.ttf").getInputStream(), true);
-        fonts[i++] = FontFactory.get(IOUtil.getResource(TestTextRendererNEWTBugXXXX.class,
-                "fonts/freefont/FreeSerifBoldItalic.ttf").getInputStream(), true);
-        fonts[i++] = FontFactory.get(IOUtil.getResource(TestTextRendererNEWTBugXXXX.class,
-                "fonts/freefont/FreeSerifItalic.ttf").getInputStream(), true);
+        fonts[i++] = FontFactory.get(IOUtil.getResource("fonts/freefont/FreeMono.ttf",
+                TestTextRendererNEWTBugXXXX.class.getClassLoader(), TestTextRendererNEWTBugXXXX.class).getInputStream(), true);
+        fonts[i++] = FontFactory.get(IOUtil.getResource("fonts/freefont/FreeMonoBold.ttf",
+                TestTextRendererNEWTBugXXXX.class.getClassLoader(), TestTextRendererNEWTBugXXXX.class).getInputStream(), true);
+        fonts[i++] = FontFactory.get(IOUtil.getResource("fonts/freefont/FreeSans.ttf",
+                TestTextRendererNEWTBugXXXX.class.getClassLoader(), TestTextRendererNEWTBugXXXX.class).getInputStream(), true);
+        fonts[i++] = FontFactory.get(IOUtil.getResource("fonts/freefont/FreeSansBold.ttf",
+                TestTextRendererNEWTBugXXXX.class.getClassLoader(), TestTextRendererNEWTBugXXXX.class).getInputStream(), true);
+        fonts[i++] = FontFactory.get(IOUtil.getResource("fonts/freefont/FreeSerif.ttf",
+                TestTextRendererNEWTBugXXXX.class.getClassLoader(), TestTextRendererNEWTBugXXXX.class).getInputStream(), true);
+        fonts[i++] = FontFactory.get(IOUtil.getResource("fonts/freefont/FreeSerifBold.ttf",
+                TestTextRendererNEWTBugXXXX.class.getClassLoader(), TestTextRendererNEWTBugXXXX.class).getInputStream(), true);
+        fonts[i++] = FontFactory.get(IOUtil.getResource("fonts/freefont/FreeSerifBoldItalic.ttf",
+                TestTextRendererNEWTBugXXXX.class.getClassLoader(), TestTextRendererNEWTBugXXXX.class).getInputStream(), true);
+        fonts[i++] = FontFactory.get(IOUtil.getResource("fonts/freefont/FreeSerifItalic.ttf",
+                TestTextRendererNEWTBugXXXX.class.getClassLoader(), TestTextRendererNEWTBugXXXX.class).getInputStream(), true);
         return fonts;
     }
 }
diff --git a/src/test/com/jogamp/opengl/test/junit/graph/TestTextRendererNEWT10.java b/src/test/com/jogamp/opengl/test/junit/graph/TestTextRendererNEWT10.java
index 4e66f6920..37d457057 100644
--- a/src/test/com/jogamp/opengl/test/junit/graph/TestTextRendererNEWT10.java
+++ b/src/test/com/jogamp/opengl/test/junit/graph/TestTextRendererNEWT10.java
@@ -102,7 +102,7 @@ public class TestTextRendererNEWT10 extends UITestCase {
                 forceGL3 = true;
             } else if(args[i].equals("-font")) {
                 i++;
-                font = FontFactory.get(IOUtil.getResource(TestTextRendererNEWT10.class, args[i]).getInputStream(), true);
+                font = FontFactory.get(IOUtil.getResource(args[i], TestTextRendererNEWT10.class.getClassLoader(), TestTextRendererNEWT10.class).getInputStream(), true);
             } else if(args[i].equals("-fontSize")) {
                 i++;
                 fontSize = MiscUtils.atof(args[i], fontSize);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/newt/TestGearsES2SimpleNEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/newt/TestGearsES2SimpleNEWT.java
index 849fcb16d..992d3c58e 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/newt/TestGearsES2SimpleNEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/newt/TestGearsES2SimpleNEWT.java
@@ -118,7 +118,7 @@ public class TestGearsES2SimpleNEWT extends UITestCase {
             int idx = 0;
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(glWindow.getClass(), new String[] { "newt/data/cross-grey-alpha-16x16.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "newt/data/cross-grey-alpha-16x16.png" }, glWindow.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 8, 8);
                     System.err.printf("Create PointerIcon #%02d: %s%n", idx, _pointerIcon.toString());
@@ -130,7 +130,7 @@ public class TestGearsES2SimpleNEWT extends UITestCase {
             idx++;
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(glWindow.getClass(), new String[] { "newt/data/pointer-grey-alpha-16x24.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "newt/data/pointer-grey-alpha-16x24.png" }, glWindow.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 0, 0);
                     System.err.printf("Create PointerIcon #%02d: %s%n", idx, _pointerIcon.toString());
@@ -142,7 +142,7 @@ public class TestGearsES2SimpleNEWT extends UITestCase {
             idx++;
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(glWindow.getClass(), new String[] { "arrow-red-alpha-64x64.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "arrow-red-alpha-64x64.png" }, glWindow.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 0, 0);
                     System.err.printf("Create PointerIcon #%02d: %s%n", idx, _pointerIcon.toString());
@@ -154,7 +154,7 @@ public class TestGearsES2SimpleNEWT extends UITestCase {
             idx++;
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(glWindow.getClass(), new String[] { "arrow-blue-alpha-64x64.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "arrow-blue-alpha-64x64.png" }, glWindow.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 0, 0);
                     System.err.printf("Create PointerIcon #%02d: %s%n", idx, _pointerIcon.toString());
@@ -166,7 +166,7 @@ public class TestGearsES2SimpleNEWT extends UITestCase {
             idx++;
             if( PNGIcon.isAvailable() ) {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(glWindow.getClass(), new String[] { "jogamp-pointer-64x64.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "jogamp-pointer-64x64.png" }, glWindow.getClass().getClassLoader(), null);
                 try {
                     final URLConnection urlConn = res.resolve(0);
                     final PNGPixelRect image = PNGPixelRect.read(urlConn.getInputStream(), null, false /* directBuffer */, 0 /* destMinStrideInBytes */, false /* destIsGLOriented */);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/demos/gl2/Teapot.java b/src/test/com/jogamp/opengl/test/junit/jogl/demos/gl2/Teapot.java
index 22d24b67b..159fad9da 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/demos/gl2/Teapot.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/demos/gl2/Teapot.java
@@ -72,7 +72,7 @@ public class Teapot implements GLEventListener {
         gl.glClearColor(0.5f, 0.5f, 0.5f, 0.0f);
 
         try {
-            final URLConnection urlConn = IOUtil.getResource(PNGTstFiles.class, "test-ntscP_3-01-160x90.png");
+            final URLConnection urlConn = IOUtil.getResource("test-ntscP_3-01-160x90.png", PNGTstFiles.class.getClassLoader(), PNGTstFiles.class);
             tex = TextureIO.newTexture(gl, TextureIO.newTextureData(gl.getGLProfile(), urlConn.getInputStream(), false, TextureIO.PNG));
         } catch (final Exception e) {
             e.printStackTrace();
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/demos/gl3/GeomShader01TextureGL3.java b/src/test/com/jogamp/opengl/test/junit/jogl/demos/gl3/GeomShader01TextureGL3.java
index a4a665e5b..668d8877c 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/demos/gl3/GeomShader01TextureGL3.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/demos/gl3/GeomShader01TextureGL3.java
@@ -193,7 +193,7 @@ public class GeomShader01TextureGL3 implements GLEventListener  {
     }
 
     private Texture createTestTexture(final GL3 gl) throws IOException  {
-        final URLConnection urlConn = IOUtil.getResource(this.getClass(), "../../util/texture/test-ntscN_3-01-160x90.png");
+        final URLConnection urlConn = IOUtil.getResource("../../util/texture/test-ntscN_3-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
         if(null == urlConn) { return null; }
         final InputStream istream = urlConn.getInputStream();
         if(null == istream) { return null; }
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/DemoGL2ES1TextureImmModeSink.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/DemoGL2ES1TextureImmModeSink.java
index f90b32009..572871233 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/DemoGL2ES1TextureImmModeSink.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/DemoGL2ES1TextureImmModeSink.java
@@ -97,7 +97,7 @@ public class DemoGL2ES1TextureImmModeSink implements GLEventListener, TextureDra
         }
         final GL2ES1 gl = FixedFuncUtil.wrapFixedFuncEmul(_gl, ShaderSelectionMode.AUTO, null, forceFFPEmu, verboseFFPEmu);
 
-        final URLConnection testTextureUrlConn = IOUtil.getResource(PNGTstFiles.class, "test-ntscP_3-01-160x90.png");
+        final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscP_3-01-160x90.png", PNGTstFiles.class.getClassLoader(), PNGTstFiles.class);
         try {
             final InputStream  testTextureStream = testTextureUrlConn.getInputStream();
             textureData = TextureIO.newTextureData(gl.getGLProfile(), testTextureStream , false /* mipmap */, TextureIO.PNG);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/ImageTstFiles.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/ImageTstFiles.java
index dfd3f6366..25bb7e788 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/ImageTstFiles.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/ImageTstFiles.java
@@ -96,7 +96,7 @@ public class ImageTstFiles {
     private final ArrayList<NamedInputStream> init(final String[] source) throws IOException {
         final ArrayList<NamedInputStream> sink = new ArrayList<NamedInputStream>();
         for(int i=0; i<source.length; i++) {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), source[i]);
+            final URLConnection testTextureUrlConn = IOUtil.getResource(source[i], this.getClass().getClassLoader(), this.getClass());
             if( null != testTextureUrlConn ) {
                 final InputStream s = testTextureUrlConn.getInputStream();
                 if( null != s ) {
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestBug362DDSImageCreateFromData.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestBug362DDSImageCreateFromData.java
index a585e9eaf..71233d07c 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestBug362DDSImageCreateFromData.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestBug362DDSImageCreateFromData.java
@@ -56,7 +56,7 @@ public class TestBug362DDSImageCreateFromData {
     }
 
     private File initFile(final String filename) throws URISyntaxException {
-    	final URLConnection connection = IOUtil.getResource(getClass(), filename);
+    	final URLConnection connection = IOUtil.getResource(filename, getClass().getClassLoader(), getClass());
     	Assert.assertNotNull(connection);
     	final URL url = connection.getURL();
     	final File file = new File(url.toURI());
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGImage01NEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGImage01NEWT.java
index 925382901..8ccc73f34 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGImage01NEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGImage01NEWT.java
@@ -146,7 +146,7 @@ public class TestJPEGImage01NEWT extends UITestCase {
     @Test
     public void testReadES2_RGBn() throws InterruptedException, IOException, MalformedURLException {
         final String fname = null == _fname ? "test-ntscN_3-01-160x90-90pct-yuv444-base.jpg" : _fname;
-        final URLConnection urlConn = IOUtil.getResource(this.getClass(), fname);
+        final URLConnection urlConn = IOUtil.getResource(fname, this.getClass().getClassLoader(), this.getClass());
         testImpl(urlConn.getInputStream());
     }
 
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGJoglAWTBenchmarkNewtAWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGJoglAWTBenchmarkNewtAWT.java
index 4fc774463..87a993de4 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGJoglAWTBenchmarkNewtAWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGJoglAWTBenchmarkNewtAWT.java
@@ -64,7 +64,7 @@ public class TestJPEGJoglAWTBenchmarkNewtAWT extends UITestCase {
         {
             final long t0 = System.currentTimeMillis();
             for(int i = 0; i< loops; i++ ) {
-                final URLConnection urlConn = IOUtil.getResource(this.getClass(), fname);
+                final URLConnection urlConn = IOUtil.getResource(fname, this.getClass().getClassLoader(), this.getClass());
                 final InputStream istream = urlConn.getInputStream();
                 final JPEGImage image = JPEGImage.read(istream); // parsing & completion done !!!
                 final int internalFormat = (image.getBytesPerPixel()==4)?GL.GL_RGBA:GL.GL_RGB;
@@ -92,7 +92,7 @@ public class TestJPEGJoglAWTBenchmarkNewtAWT extends UITestCase {
         {
             final long t0 = System.currentTimeMillis();
             for(int i = 0; i< loops; i++ ) {
-                final URLConnection urlConn = IOUtil.getResource(this.getClass(), fname);
+                final URLConnection urlConn = IOUtil.getResource(fname, this.getClass().getClassLoader(), this.getClass());
                 final InputStream istream = urlConn.getInputStream();
                 final JPEGImage image = JPEGImage.read(istream, TextureData.ColorSpace.YCbCr); // parsing & completion done !!!
                 final int internalFormat = (image.getBytesPerPixel()==4)?GL.GL_RGBA:GL.GL_RGB;
@@ -120,7 +120,7 @@ public class TestJPEGJoglAWTBenchmarkNewtAWT extends UITestCase {
         {
             final long t0 = System.currentTimeMillis();
             for(int i = 0; i< loops; i++ ) {
-                final URLConnection urlConn = IOUtil.getResource(this.getClass(), fname);
+                final URLConnection urlConn = IOUtil.getResource(fname, this.getClass().getClassLoader(), this.getClass());
                 final InputStream istream = urlConn.getInputStream();
                 Buffer data = null;
                 try {
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGJoglAWTCompareNewtAWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGJoglAWTCompareNewtAWT.java
index d5c80553d..b48000046 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGJoglAWTCompareNewtAWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGJoglAWTCompareNewtAWT.java
@@ -101,7 +101,7 @@ public class TestJPEGJoglAWTCompareNewtAWT extends UITestCase {
     }
 
     GLWindow testJOGLJpeg(final String fname) throws InterruptedException, IOException {
-        final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), fname);
+        final URLConnection testTextureUrlConn = IOUtil.getResource(fname, this.getClass().getClassLoader(), this.getClass());
         Assert.assertNotNull(testTextureUrlConn);
         final InputStream istream = testTextureUrlConn.getInputStream();
         Assert.assertNotNull(istream);
@@ -160,7 +160,7 @@ public class TestJPEGJoglAWTCompareNewtAWT extends UITestCase {
     }
 
     GLWindow testAWTJpeg(final String fname, final int xpos) throws InterruptedException, IOException {
-        final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), fname);
+        final URLConnection testTextureUrlConn = IOUtil.getResource(fname, this.getClass().getClassLoader(), this.getClass());
         Assert.assertNotNull(testTextureUrlConn);
         final InputStream istream = testTextureUrlConn.getInputStream();
         Assert.assertNotNull(istream);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGTextureFromFileNEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGTextureFromFileNEWT.java
index 114561666..b43fba479 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGTextureFromFileNEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestJPEGTextureFromFileNEWT.java
@@ -82,63 +82,63 @@ public class TestJPEGTextureFromFileNEWT extends UITestCase {
     @Before
     public void initTest() throws IOException {
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscN_3-01-160x90-90pct-yuv444-base.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscN_3-01-160x90-90pct-yuv444-base.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream01YUV444_Base = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream01YUV444_Base);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscN_3-01-160x90-90pct-yuv444-prog.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscN_3-01-160x90-90pct-yuv444-prog.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream01YUV444_Prog = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream01YUV444_Prog);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscN_3-01-160x90-60pct-yuv422h-base.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscN_3-01-160x90-60pct-yuv422h-base.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream01YUV422h_Base = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream01YUV422h_Base);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscN_3-01-160x90-60pct-yuv422h-prog.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscN_3-01-160x90-60pct-yuv422h-prog.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream01YUV422h_Prog = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream01YUV422h_Prog);
         }
 
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "j1-baseline.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("j1-baseline.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream02YUV420_Base = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream02YUV420_Base);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "j2-progressive.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("j2-progressive.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream02YUV420_Prog = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream02YUV420_Prog);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "j3-baseline_gray.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("j3-baseline_gray.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream02YUV420_BaseGray = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream02YUV420_BaseGray);
         }
 
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-cmyk-01.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-cmyk-01.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream03CMYK_01 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream03CMYK_01);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ycck-01.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ycck-01.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream03YCCK_01 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream03YCCK_01);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "bug745_qttdef_post_frame.jpg");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("bug745_qttdef_post_frame.jpg", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream04QTTDefPostFrame = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream04QTTDefPostFrame);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGPixelRect00NEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGPixelRect00NEWT.java
index 3918b6cb7..0506f840e 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGPixelRect00NEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGPixelRect00NEWT.java
@@ -128,7 +128,7 @@ public class TestPNGPixelRect00NEWT extends UITestCase {
         final File out2F_f=new File(getSimpleTestName(".")+"-02-"+basename+"-flipped.png");
         final File out2R_f=new File(getSimpleTestName(".")+"-03-"+basename+"-reversed.png");
         final File out2RF_f=new File(getSimpleTestName(".")+"-04-"+basename+"-reversed_flipped.png");
-        final URLConnection urlConn = IOUtil.getResource(this.getClass(), pathname+basename+".png");
+        final URLConnection urlConn = IOUtil.getResource(pathname+basename+".png", this.getClass().getClassLoader(), this.getClass());
         if( null == urlConn ) {
             throw new IOException("Cannot find "+pathname+basename+".png");
         }
@@ -205,7 +205,7 @@ public class TestPNGPixelRect00NEWT extends UITestCase {
         System.err.println("Test02: "+pathname+basename+".png, destFmt "+destFmt+", destMinStrideInBytes "+destMinStrideInBytes+", destIsGLOriented "+destIsGLOriented);
 
         final File out1_f=new File(getSimpleTestName(".")+"-"+basename+"-orig.png");
-        final URLConnection urlConn = IOUtil.getResource(this.getClass(), pathname+basename+".png");
+        final URLConnection urlConn = IOUtil.getResource(pathname+basename+".png", this.getClass().getClassLoader(), this.getClass());
 
         final PNGPixelRect image1 = PNGPixelRect.read(urlConn.getInputStream(), destFmt, false /* directBuffer */, destMinStrideInBytes, destIsGLOriented);
         System.err.println("PNGPixelRect - Orig: "+image1);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGPixelRect01NEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGPixelRect01NEWT.java
index e299932b3..b6a047d03 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGPixelRect01NEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGPixelRect01NEWT.java
@@ -156,7 +156,7 @@ public class TestPNGPixelRect01NEWT extends UITestCase {
         if( null == _fname ) {
             return;
         }
-        final URLConnection urlConn = IOUtil.getResource(this.getClass(), _fname);
+        final URLConnection urlConn = IOUtil.getResource(_fname, this.getClass().getClassLoader(), this.getClass());
         if( null == urlConn ) {
             throw new IOException("Cannot find "+_fname+".png");
         }
@@ -170,7 +170,7 @@ public class TestPNGPixelRect01NEWT extends UITestCase {
         }
         for(int i=0; i<PNGTstFiles.allBasenames.length; i++) {
             final String basename = PNGTstFiles.allBasenames[i];
-            final URLConnection urlConn = IOUtil.getResource(this.getClass(), basename+".png");
+            final URLConnection urlConn = IOUtil.getResource(basename+".png", this.getClass().getClassLoader(), this.getClass());
             if( null == urlConn ) {
                 throw new IOException("Cannot find "+basename+".png");
             }
@@ -184,7 +184,7 @@ public class TestPNGPixelRect01NEWT extends UITestCase {
         }
         for(int i=0; i<PNGTstFiles.greyBasenames.length; i++) {
             final String basename = PNGTstFiles.greyBasenames[i];
-            final URLConnection urlConn = IOUtil.getResource(this.getClass(), basename+".png");
+            final URLConnection urlConn = IOUtil.getResource(basename+".png", this.getClass().getClassLoader(), this.getClass());
             if( null == urlConn ) {
                 throw new IOException("Cannot find "+basename+".png");
             }
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGTextureFromFileAWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGTextureFromFileAWT.java
index 2d6b6da71..157fffb90 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGTextureFromFileAWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGTextureFromFileAWT.java
@@ -86,7 +86,7 @@ public class TestPNGTextureFromFileAWT extends UITestCase {
         grayTextureStream = TestPNGTextureFromFileAWT.class.getResourceAsStream( "grayscale_texture.png" );
         Assert.assertNotNull(grayTextureStream);
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscN_3-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscN_3-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGTextureFromFileNEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGTextureFromFileNEWT.java
index a82767f9a..d7017465e 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGTextureFromFileNEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPNGTextureFromFileNEWT.java
@@ -82,44 +82,44 @@ public class TestPNGTextureFromFileNEWT extends UITestCase {
         grayTextureStream = TestPNGTextureFromFileNEWT.class.getResourceAsStream( "grayscale_texture.png" );
         Assert.assertNotNull(grayTextureStream);
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscN_3-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscN_3-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamN_3 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamN_3);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscN_4-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscN_4-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamN_4 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamN_4);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscNG4-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscNG4-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamNG4 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamNG4);
         }
 
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscI_3-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscI_3-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamI_3 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamI_3);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscIG3-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscIG3-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamIG3 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamIG3);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscI_4-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscI_4-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamI_4 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamI_4);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscIG4-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscIG4-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamIG4 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamIG4);
@@ -127,13 +127,13 @@ public class TestPNGTextureFromFileNEWT extends UITestCase {
 
 
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscP_3-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscP_3-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamP_3 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamP_3);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-ntscP_4-01-160x90.png");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-ntscP_4-01-160x90.png", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStreamP_4 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStreamP_4);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPixelFormatUtil01NEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPixelFormatUtil01NEWT.java
index 618797e66..653ccadfd 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPixelFormatUtil01NEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestPixelFormatUtil01NEWT.java
@@ -83,7 +83,7 @@ public class TestPixelFormatUtil01NEWT extends UITestCase {
     {
         System.err.println("Test01: "+pathname+basename+".png, srcFmt "+srcFmt+", destMinStrideInBytes "+destMinStrideInBytes+", destIsGLOriented "+destIsGLOriented);
 
-        final URLConnection urlConn = IOUtil.getResource(this.getClass(), pathname+basename+".png");
+        final URLConnection urlConn = IOUtil.getResource(pathname+basename+".png", this.getClass().getClassLoader(), this.getClass());
 
         final PNGPixelRect image1 = PNGPixelRect.read(urlConn.getInputStream(), srcFmt, false /* directBuffer */, destMinStrideInBytes, false /* isGLOriented */);
         System.err.println("PNGPixelRect - Orig: "+image1);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestTGATextureFromFileNEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestTGATextureFromFileNEWT.java
index 6e0af17da..23f4593d8 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestTGATextureFromFileNEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/util/texture/TestTGATextureFromFileNEWT.java
@@ -69,19 +69,19 @@ public class TestTGATextureFromFileNEWT extends UITestCase {
     @Before
     public void initTest() throws IOException {
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "test-u32.tga");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("test-u32.tga", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream01U32 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream01U32);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "bug744-rle32.tga");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("bug744-rle32.tga", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream02RLE32 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream02RLE32);
         }
         {
-            final URLConnection testTextureUrlConn = IOUtil.getResource(this.getClass(), "bug982.rle32.256x256.tga");
+            final URLConnection testTextureUrlConn = IOUtil.getResource("bug982.rle32.256x256.tga", this.getClass().getClassLoader(), this.getClass());
             Assert.assertNotNull(testTextureUrlConn);
             testTextureStream03RLE32 = testTextureUrlConn.getInputStream();
             Assert.assertNotNull(testTextureStream03RLE32);
diff --git a/src/test/com/jogamp/opengl/test/junit/newt/TestWindowAndPointerIconNEWT.java b/src/test/com/jogamp/opengl/test/junit/newt/TestWindowAndPointerIconNEWT.java
index 0ef554ec2..d613f7d94 100644
--- a/src/test/com/jogamp/opengl/test/junit/newt/TestWindowAndPointerIconNEWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/newt/TestWindowAndPointerIconNEWT.java
@@ -94,7 +94,7 @@ public class TestWindowAndPointerIconNEWT extends SingletonJunitCase {
             final int idx = 0;
             {
                 PointerIcon _pointerIcon = null;
-                final IOUtil.ClassResources res = new IOUtil.ClassResources(glWindow.getClass(), new String[] { "arrow-red-alpha-64x64.png" } );
+                final IOUtil.ClassResources res = new IOUtil.ClassResources(new String[] { "arrow-red-alpha-64x64.png" }, glWindow.getClass().getClassLoader(), null);
                 try {
                     _pointerIcon = disp.createPointerIcon(res, 0, 0);
                     System.err.printf("Create PointerIcon #%02d: %s%n", idx, _pointerIcon.toString());