Migrate Nullable and NonNull annotations to AndroidX

Summary:
This diff migrates the usages Nullable and NonNull annotations to AndroidX instead of javax.

The purpose of this change is to bring consistency in the annotations used by the core of RN

Reviewed By: makovkastar

Differential Revision: D16054504

fbshipit-source-id: 21d888854da088d2a14615a90d4dc058e5286b91

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

@@ -6,14 +6,14 @@
  */
 package com.facebook.react.bridge;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import com.facebook.infer.annotation.Assertions;
 import com.facebook.jni.HybridData;
 import com.facebook.proguard.annotations.DoNotStrip;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
 
 /**
  * Implementation of a read-only map in native memory. This will generally be constructed and filled
@@ -64,7 +64,7 @@ public class ReadableNativeMap extends NativeMap implements ReadableMap {
 
   private native Object[] importValues();
 
-  private @Nonnull HashMap<String, ReadableType> getLocalTypeMap() {
+  private @NonNull HashMap<String, ReadableType> getLocalTypeMap() {
     if (mLocalTypeMap != null) {
       return mLocalTypeMap;
     }
@@ -90,19 +90,19 @@ public class ReadableNativeMap extends NativeMap implements ReadableMap {
   private native Object[] importTypes();
 
   @Override
-  public boolean hasKey(@Nonnull String name) {
+  public boolean hasKey(@NonNull String name) {
     return getLocalMap().containsKey(name);
   }
 
   @Override
-  public boolean isNull(@Nonnull String name) {
+  public boolean isNull(@NonNull String name) {
     if (getLocalMap().containsKey(name)) {
       return getLocalMap().get(name) == null;
     }
     throw new NoSuchKeyException(name);
   }
 
-  private @Nonnull Object getValue(@Nonnull String name) {
+  private @NonNull Object getValue(@NonNull String name) {
     if (hasKey(name) && !(isNull(name))) {
       return Assertions.assertNotNull(getLocalMap().get(name));
     }
@@ -141,38 +141,38 @@ public class ReadableNativeMap extends NativeMap implements ReadableMap {
   }
 
   @Override
-  public boolean getBoolean(@Nonnull String name) {
+  public boolean getBoolean(@NonNull String name) {
     return getValue(name, Boolean.class).booleanValue();
   }
 
   @Override
-  public double getDouble(@Nonnull String name) {
+  public double getDouble(@NonNull String name) {
     return getValue(name, Double.class).doubleValue();
   }
 
   @Override
-  public int getInt(@Nonnull String name) {
+  public int getInt(@NonNull String name) {
     // All numbers coming out of native are doubles, so cast here then truncate
     return getValue(name, Double.class).intValue();
   }
 
   @Override
-  public @Nullable String getString(@Nonnull String name) {
+  public @Nullable String getString(@NonNull String name) {
     return getNullableValue(name, String.class);
   }
 
   @Override
-  public @Nullable ReadableArray getArray(@Nonnull String name) {
+  public @Nullable ReadableArray getArray(@NonNull String name) {
     return getNullableValue(name, ReadableArray.class);
   }
 
   @Override
-  public @Nullable ReadableNativeMap getMap(@Nonnull String name) {
+  public @Nullable ReadableNativeMap getMap(@NonNull String name) {
     return getNullableValue(name, ReadableNativeMap.class);
   }
 
   @Override
-  public @Nonnull ReadableType getType(@Nonnull String name) {
+  public @NonNull ReadableType getType(@NonNull String name) {
     if (getLocalTypeMap().containsKey(name)) {
       return Assertions.assertNotNull(getLocalTypeMap().get(name));
     }
@@ -180,17 +180,17 @@ public class ReadableNativeMap extends NativeMap implements ReadableMap {
   }
 
   @Override
-  public @Nonnull Dynamic getDynamic(@Nonnull String name) {
+  public @NonNull Dynamic getDynamic(@NonNull String name) {
     return DynamicFromMap.create(this, name);
   }
 
   @Override
-  public @Nonnull Iterator<Map.Entry<String, Object>> getEntryIterator() {
+  public @NonNull Iterator<Map.Entry<String, Object>> getEntryIterator() {
     return getLocalMap().entrySet().iterator();
   }
 
   @Override
-  public @Nonnull ReadableMapKeySetIterator keySetIterator() {
+  public @NonNull ReadableMapKeySetIterator keySetIterator() {
     return new ReadableNativeMapKeySetIterator(this);
   }
 
@@ -209,7 +209,7 @@ public class ReadableNativeMap extends NativeMap implements ReadableMap {
   }
 
   @Override
-  public @Nonnull HashMap<String, Object> toHashMap() {
+  public @NonNull HashMap<String, Object> toHashMap() {
     // we can almost just return getLocalMap(), but we need to convert nested arrays and maps to the
     // correct types first
     HashMap<String, Object> hashMap = new HashMap<>(getLocalMap());