diff --git a/gson/src/main/java/com/google/gson/Gson.java b/gson/src/main/java/com/google/gson/Gson.java
index 2fca11eb..2237bd12 100644
--- a/gson/src/main/java/com/google/gson/Gson.java
+++ b/gson/src/main/java/com/google/gson/Gson.java
@@ -574,7 +574,7 @@ public final class Gson {
     boolean oldSerializeNulls = writer.getSerializeNulls();
     writer.setSerializeNulls(serializeNulls);
     try {
-      Streams.write(jsonElement, serializeNulls, writer);
+      Streams.write(jsonElement, writer);
     } catch (IOException e) {
       throw new JsonIOException(e);
     } finally {
diff --git a/gson/src/main/java/com/google/gson/GsonToMiniGsonTypeAdapterFactory.java b/gson/src/main/java/com/google/gson/GsonToMiniGsonTypeAdapterFactory.java
index 69d383e5..1b700027 100644
--- a/gson/src/main/java/com/google/gson/GsonToMiniGsonTypeAdapterFactory.java
+++ b/gson/src/main/java/com/google/gson/GsonToMiniGsonTypeAdapterFactory.java
@@ -98,7 +98,7 @@ final class GsonToMiniGsonTypeAdapterFactory implements TypeAdapter.Factory {
           return;
         }
         JsonElement element = serializer.serialize(value, type, serializationContext);
-        Streams.write(element, serializeNulls, writer);
+        Streams.write(element, writer);
       }
 
       private TypeAdapter<T> delegate() {
diff --git a/gson/src/main/java/com/google/gson/JsonElement.java b/gson/src/main/java/com/google/gson/JsonElement.java
index 0a909c7b..7e5ef2d1 100644
--- a/gson/src/main/java/com/google/gson/JsonElement.java
+++ b/gson/src/main/java/com/google/gson/JsonElement.java
@@ -333,7 +333,7 @@ public abstract class JsonElement {
       StringWriter stringWriter = new StringWriter();
       JsonWriter jsonWriter = new JsonWriter(stringWriter);
       jsonWriter.setLenient(true);
-      Streams.write(this, true, jsonWriter);
+      Streams.write(this, jsonWriter);
       return stringWriter.toString();
     } catch (IOException e) {
       throw new AssertionError(e);
diff --git a/gson/src/main/java/com/google/gson/internal/Streams.java b/gson/src/main/java/com/google/gson/internal/Streams.java
index ea59cc56..9a558fb6 100644
--- a/gson/src/main/java/com/google/gson/internal/Streams.java
+++ b/gson/src/main/java/com/google/gson/internal/Streams.java
@@ -104,13 +104,10 @@ public final class Streams {
   /**
    * Writes the JSON element to the writer, recursively.
    */
-  public static void write(JsonElement element, boolean serializeNulls, JsonWriter writer)
+  public static void write(JsonElement element, JsonWriter writer)
       throws IOException {
     if (element == null || element.isJsonNull()) {
-      if (serializeNulls) {
-        writer.nullValue();
-      }
-
+      writer.nullValue();
     } else if (element.isJsonPrimitive()) {
       JsonPrimitive primitive = element.getAsJsonPrimitive();
       if (primitive.isNumber()) {
@@ -129,7 +126,7 @@ public final class Streams {
           writer.nullValue();
           continue;
         }
-        write(e, serializeNulls, writer);
+        write(e, writer);
       }
       writer.endArray();
 
@@ -137,11 +134,8 @@ public final class Streams {
       writer.beginObject();
       for (Map.Entry<String, JsonElement> e : element.getAsJsonObject().entrySet()) {
         JsonElement value = e.getValue();
-        if (!serializeNulls && value.isJsonNull()) {
-          continue;
-        }
         writer.name(e.getKey());
-        write(value, serializeNulls, writer);
+        write(value, writer);
       }
       writer.endObject();
 
diff --git a/gson/src/main/java/com/google/gson/internal/bind/MapTypeAdapterFactory.java b/gson/src/main/java/com/google/gson/internal/bind/MapTypeAdapterFactory.java
index fdc31508..29be2925 100644
--- a/gson/src/main/java/com/google/gson/internal/bind/MapTypeAdapterFactory.java
+++ b/gson/src/main/java/com/google/gson/internal/bind/MapTypeAdapterFactory.java
@@ -134,7 +134,7 @@ public final class MapTypeAdapterFactory implements TypeAdapter.Factory {
     private final TypeAdapter<V> valueTypeAdapter;
     private final ObjectConstructor<? extends Map<K, V>> constructor;
 
-    public Adapter(MiniGson context, Type keyType, TypeAdapter<K> keyTypeAdapter, 
+    public Adapter(MiniGson context, Type keyType, TypeAdapter<K> keyTypeAdapter,
         Type valueType, TypeAdapter<V> valueTypeAdapter,
         ObjectConstructor<? extends Map<K, V>> constructor) {
       this.keyTypeAdapter =
@@ -203,7 +203,7 @@ public final class MapTypeAdapterFactory implements TypeAdapter.Factory {
         writer.beginArray();
         for (int i = 0; i < keys.size(); i++) {
           writer.beginArray(); // entry array
-          Streams.write(keys.get(i), true, writer);
+          Streams.write(keys.get(i), writer);
           valueTypeAdapter.write(writer, values.get(i));
           writer.endArray();
         }
diff --git a/gson/src/test/java/com/google/gson/MixedStreamTest.java b/gson/src/test/java/com/google/gson/MixedStreamTest.java
index dbd86792..985df2e4 100644
--- a/gson/src/test/java/com/google/gson/MixedStreamTest.java
+++ b/gson/src/test/java/com/google/gson/MixedStreamTest.java
@@ -163,7 +163,7 @@ public final class MixedStreamTest extends TestCase {
 
     StringWriter stringWriter = new StringWriter();
     gson.toJson(null, new JsonWriter(stringWriter));
-    assertEquals("", stringWriter.toString());
+    assertEquals("null", stringWriter.toString());
   }
 
   public void testReadNulls() {
diff --git a/gson/src/test/java/com/google/gson/functional/ObjectTest.java b/gson/src/test/java/com/google/gson/functional/ObjectTest.java
index 327ae0b9..0d91ac58 100644
--- a/gson/src/test/java/com/google/gson/functional/ObjectTest.java
+++ b/gson/src/test/java/com/google/gson/functional/ObjectTest.java
@@ -139,7 +139,7 @@ public class ObjectTest extends TestCase {
     assertEquals(json, target.getExpectedJson());
   }
   public void testNullSerialization() throws Exception {
-    assertEquals("", gson.toJson(null));
+    assertEquals("null", gson.toJson(null));
   }
 
   public void testEmptyStringDeserialization() throws Exception {
diff --git a/gson/src/test/java/com/google/gson/functional/ReadersWritersTest.java b/gson/src/test/java/com/google/gson/functional/ReadersWritersTest.java
index 95b90ef6..95782878 100644
--- a/gson/src/test/java/com/google/gson/functional/ReadersWritersTest.java
+++ b/gson/src/test/java/com/google/gson/functional/ReadersWritersTest.java
@@ -62,7 +62,7 @@ public class ReadersWritersTest extends TestCase {
   public void testTopLevelNullObjectSerializationWithWriter() {
     StringWriter writer = new StringWriter();
     gson.toJson(null, writer);
-    assertEquals("", writer.toString());
+    assertEquals("null", writer.toString());
   }
 
   public void testTopLevelNullObjectDeserializationWithReader() {
@@ -84,7 +84,7 @@ public class ReadersWritersTest extends TestCase {
     Integer nullIntObject = gson.fromJson(reader, Integer.class);
     assertNull(nullIntObject);
   }
-  
+
   public void testReadWriteTwoStrings() throws IOException {
     Gson gson= new Gson();
     CharArrayWriter writer= new CharArrayWriter();
@@ -97,7 +97,7 @@ public class ReadersWritersTest extends TestCase {
     String actualTwo = gson.fromJson(parser.next(), String.class);
     assertEquals("two", actualTwo);
   }
-  
+
   public void testReadWriteTwoObjects() throws IOException {
     Gson gson= new Gson();
     CharArrayWriter writer= new CharArrayWriter();