Fix texture upload callbacks in Java/Kotlin (#6939)

* Fix texture upload callbacks in Java/Kotlin

* Update release notes

NEW_RELEASE_NOTES.md

@@ -8,3 +8,4 @@ appropriate header in [RELEASE_NOTES.md](./RELEASE_NOTES.md).
 
 ## Release notes for next branch cut
 
+- Java/Kotlin: user callbacks were not invoked on successful texture upload

android/filament-android/src/main/cpp/Texture.cpp

@@ -511,9 +511,7 @@ public:
 
 private:
     void* mData = nullptr;
-    jobject mBitmap = nullptr;
-    jobject mHandler = nullptr;
-    jobject mCallback = nullptr;
+    jobject mBitmap{};
     AndroidBitmapInfo mInfo{};
 };
 

android/samples/sample-textured-object/src/main/java/com/google/android/filament/textured/MainActivity.kt

@@ -231,7 +231,7 @@ class MainActivity : Activity() {
         animator.repeatCount = ValueAnimator.INFINITE
         animator.addUpdateListener { a ->
             val v = (a.animatedValue as Float)
-            camera.lookAt(cos(v) * 4.5, 1.5, sin(v) * 4.5, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0)
+            camera.lookAt(cos(v) * 5.5, 1.5, sin(v) * 5.5, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0)
         }
         animator.start()
     }
@@ -253,7 +253,7 @@ class MainActivity : Activity() {
 
         // Stop the animation and any pending frame
         choreographer.removeFrameCallback(frameScheduler)
-        animator.cancel();
+        animator.cancel()
 
         // Always detach the surface before destroying the engine
         uiHelper.detach()