NullBitmapException details

src/org/andengine/opengl/texture/bitmap/BitmapTexture.java

@@ -104,7 +104,7 @@ protected void writeTextureToHardware(final GLState pGLState) throws IOException
 		final Bitmap bitmap = this.onGetBitmap(bitmapConfig);
 
 		if(bitmap == null) {
-			throw new NullBitmapException("Caused by: '" + this.toString() + "'.");
+			throw new NullBitmapException("Caused by: '" + this.toString() + "' (mInputStreamOpener=" + mInputStreamOpener + ").");
 		}
 
 		final boolean useDefaultAlignment = MathUtils.isPowerOfTwo(bitmap.getWidth()) && MathUtils.isPowerOfTwo(bitmap.getHeight()) && (this.mPixelFormat == PixelFormat.RGBA_8888);

src/org/andengine/util/adt/io/in/AssetInputStreamOpener.java

@@ -45,6 +45,12 @@ public InputStream open() throws IOException {
 		return this.mAssetManager.open(this.mAssetPath);
 	}
 
+	@Override
+	public String toString() {
+		return "AssetInputStreamOpener [mAssetManager=" + mAssetManager + ", mAssetPath=" + mAssetPath + "]";
+	}
+
+
 	// ===========================================================
 	// Methods
 	// ===========================================================

src/org/andengine/util/adt/io/in/ByteArrayInputStreamOpener.java

@@ -50,6 +50,12 @@ public InputStream open() throws IOException {
 		return new ByteArrayInputStream(this.mBytes, this.mOffset, this.mLength);
 	}
 
+	@Override
+	public String toString() {
+		return "ByteArrayInputStreamOpener [mBytes" + (mBytes == null ? "=null" : ".size=" + mBytes.length) + ", mOffset=" + mOffset + ", mLength=" + mLength + "]";
+	}
+
+
 	// ===========================================================
 	// Methods
 	// ===========================================================

src/org/andengine/util/adt/io/in/ResourceInputStreamOpener.java

@@ -45,6 +45,11 @@ public InputStream open() throws IOException {
 		return this.mResources.openRawResource(this.mResourceID);
 	}
 
+	@Override
+	public String toString() {
+		return "ResourceInputStreamOpener [mResources=" + mResources + ", mResourceID=" + mResourceID + "]";
+	}
+
 	// ===========================================================
 	// Methods
 	// ===========================================================