Get rid of jackson (mostly)

Reviewed By: astreet

Differential Revision: D3041362

fb-gh-sync-id: a7027a08a63730b98dc766b86921820fa3624953
shipit-source-id: a7027a08a63730b98dc766b86921820fa3624953

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

@@ -12,8 +12,6 @@ package com.facebook.react.bridge;
 import java.io.IOException;
 import java.util.Map;
 
-import com.fasterxml.jackson.core.JsonGenerator;
-
 /**
  * A native module whose API can be provided to JS catalyst instances.  {@link NativeModule}s whose
  * implementation is written in Java should extend {@link BaseJavaModule} or {@link
@@ -42,7 +40,7 @@ public interface NativeModule {
    * Append a field which represents the constants this module exports
    * to JS.  If no constants are exported this should do nothing.
    */
-  void writeConstantsField(JsonGenerator jg, String fieldName) throws IOException;
+  void writeConstantsField(JsonWriter writer, String fieldName) throws IOException;
 
   /**
    * This is called at the end of {@link CatalystApplicationFragment#createCatalystInstance()}