fix memory leak

ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java

@@ -52,7 +52,7 @@
  * It delegates handling touch events for itself and child views and sending those events to JS by
  * using JSTouchDispatcher.
  * This view is overriding {@link ViewGroup#onInterceptTouchEvent} method in order to be notified
- * about the events for all of it's children and it's also overriding
+ * about the events for all of its children and it's also overriding
  * {@link ViewGroup#requestDisallowInterceptTouchEvent} to make sure that
  * {@link ViewGroup#onInterceptTouchEvent} will get events even when some child view start
  * intercepting it. In case when no child view is interested in handling some particular

ReactAndroid/src/main/java/com/facebook/react/bridge/CatalystInstanceImpl.java

@@ -24,12 +24,14 @@
 import com.facebook.jni.HybridData;
 import com.facebook.proguard.annotations.DoNotStrip;
 import com.facebook.react.bridge.queue.MessageQueueThread;
+import com.facebook.react.bridge.queue.MessageQueueThreadRegistry;
 import com.facebook.react.bridge.queue.QueueThreadExceptionHandler;
 import com.facebook.react.bridge.queue.ReactQueueConfiguration;
 import com.facebook.react.bridge.queue.ReactQueueConfigurationImpl;
 import com.facebook.react.bridge.queue.ReactQueueConfigurationSpec;
 import com.facebook.react.common.ReactConstants;
 import com.facebook.react.common.annotations.VisibleForTesting;
+import com.facebook.react.uimanager.ViewManagerPropertyUpdater;
 import com.facebook.soloader.SoLoader;
 import com.facebook.systrace.Systrace;
 import com.facebook.systrace.TraceListener;
@@ -297,6 +299,9 @@ public void run() {
       }
     });
 
+    MessageQueueThreadRegistry.clear();
+    ViewManagerPropertyUpdater.clear();
+
     // This is a noop if the listener was not yet registered.
     Systrace.unregisterListener(mTraceListener);
   }

ReactAndroid/src/main/java/com/facebook/react/bridge/queue/MessageQueueThreadRegistry.java

@@ -35,5 +35,9 @@ public static MessageQueueThread myMessageQueueThread() {
         sMyMessageQueueThread.get(),
         "This thread doesn't have a MessageQueueThread registered to it!");
   }
+
+  public static void clear() {
+    sMyMessageQueueThread.remove();
+  }
 }
 

ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewManagerPropertyUpdater.java

@@ -30,6 +30,12 @@ public interface ShadowNodeSetter<T extends ReactShadowNode> extends Settable {
       new HashMap<>();
   private static final Map<Class<?>, ShadowNodeSetter<?>> SHADOW_NODE_SETTER_MAP = new HashMap<>();
 
+  public static void clear() {
+    ViewManagersPropertyCache.clear();
+    VIEW_MANAGER_SETTER_MAP.clear();
+    SHADOW_NODE_SETTER_MAP.clear();
+  }
+
   public static <T extends ViewManager, V extends View> void updateProps(
       T manager,
       V v,

ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewManagersPropertyCache.java

@@ -28,6 +28,11 @@
   private static final Map<Class, Map<String, PropSetter>> CLASS_PROPS_CACHE = new HashMap<>();
   private static final Map<String, PropSetter> EMPTY_PROPS_MAP = new HashMap<>();
 
+  public static void clear() {
+    CLASS_PROPS_CACHE.clear();
+    EMPTY_PROPS_MAP.clear();
+  }
+
   /*package*/ static abstract class PropSetter {
 
     protected final String mPropName;