1 files changed, 13 insertions, 20 deletions

diff --git a/platform/android/src/map/image.cpp b/platform/android/src/map/image.cpp
index ce89e22d7a..ee3c7012a7 100644
--- a/platform/android/src/map/image.cpp
+++ b/platform/android/src/map/image.cpp
@@ -6,43 +6,36 @@ namespace mbgl {
 namespace android {
 
 mbgl::style::Image Image::getImage(jni::JNIEnv& env, jni::Object<Image> image) {
-    static auto widthField = Image::javaClass.GetField<jni::jint>(env, "width");
-    static auto heightField = Image::javaClass.GetField<jni::jint>(env, "height");
-    static auto pixelRatioField = Image::javaClass.GetField<jni::jfloat>(env, "pixelRatio");
-    static auto bufferField = Image::javaClass.GetField<jni::Array<jbyte>>(env, "buffer");
-    static auto nameField = Image::javaClass.GetField<jni::String>(env, "name");
-    static auto sdfField = Image::javaClass.GetField<jni::jboolean>(env, "sdf");
+    static auto javaClass = jni::Class<Image>::Singleton(env);
+    static auto widthField = javaClass.GetField<jni::jint>(env, "width");
+    static auto heightField = javaClass.GetField<jni::jint>(env, "height");
+    static auto pixelRatioField = javaClass.GetField<jni::jfloat>(env, "pixelRatio");
+    static auto bufferField = javaClass.GetField<jni::Array<jbyte>>(env, "buffer");
+    static auto nameField = javaClass.GetField<jni::String>(env, "name");
+    static auto sdfField = javaClass.GetField<jni::jboolean>(env, "sdf");
 
     auto height = image.Get(env, heightField);
     auto width = image.Get(env, widthField);
     auto pixelRatio = image.Get(env, pixelRatioField);
-    auto pixels = image.Get(env, bufferField);
-    auto jName = image.Get(env, nameField);
-    auto name = jni::Make<std::string>(env, jName);
+    auto pixels = jni::SeizeLocal(env, image.Get(env, bufferField));
+    auto name = jni::Make<std::string>(env, *jni::SeizeLocal(env, image.Get(env, nameField)));
     auto sdf = (bool) image.Get(env, sdfField);
-    jni::DeleteLocalRef(env, jName);
 
-    jni::NullCheck(env, &pixels);
-    std::size_t size = pixels.Length(env);
+    jni::NullCheck(env, pixels->Get());
+    std::size_t size = pixels->Length(env);
 
     mbgl::PremultipliedImage premultipliedImage({ static_cast<uint32_t>(width), static_cast<uint32_t>(height) });
     if (premultipliedImage.bytes() != uint32_t(size)) {
         throw mbgl::util::SpriteImageException("Sprite image pixel count mismatch");
     }
 
-    jni::GetArrayRegion(env, *pixels, 0, size, reinterpret_cast<jbyte*>(premultipliedImage.data.get()));
-    jni::DeleteLocalRef(env, pixels);
+    jni::GetArrayRegion(env, **pixels, 0, size, reinterpret_cast<jbyte*>(premultipliedImage.data.get()));
     return mbgl::style::Image {name, std::move(premultipliedImage), pixelRatio, sdf};
 }
 
 void Image::registerNative(jni::JNIEnv &env) {
-    // Lookup the class
-    Image::javaClass = *jni::Class<Image>::Find(env).NewGlobalRef(env).release();
+    jni::Class<Image>::Singleton(env);
 }
 
-jni::Class<Image> Image::javaClass;
-
-
 } // namespace android
 } // namespace mb
-