Follow up on r1197 and make deepCopy package-private. We don't want to use protected because some of the classes are non-final and protected shows up in the Javadocs.

gson/src/main/java/com/google/gson/JsonArray.java

@@ -41,7 +41,7 @@ public final class JsonArray extends JsonElement implements Iterable<JsonElement
   }
 
   @Override
-  protected JsonArray deepCopy() {
+  JsonArray deepCopy() {
     JsonArray result = new JsonArray();
     for (JsonElement element : elements) {
       result.add(element.deepCopy());

gson/src/main/java/com/google/gson/JsonElement.java

@@ -35,7 +35,7 @@ public abstract class JsonElement {
    * Returns a deep copy of this element. Immutable elements like primitives
    * and nulls are not copied.
    */
-  protected abstract JsonElement deepCopy();
+  abstract JsonElement deepCopy();
 
   /**
    * provides check for verifying if this element is an array or not.

gson/src/main/java/com/google/gson/JsonNull.java

@@ -41,7 +41,7 @@ public final class JsonNull extends JsonElement {
   }
 
   @Override
-  protected JsonNull deepCopy() {
+  JsonNull deepCopy() {
     return INSTANCE;
   }
 

gson/src/main/java/com/google/gson/JsonObject.java

@@ -43,7 +43,7 @@ public final class JsonObject extends JsonElement {
   }
 
   @Override
-  protected JsonObject deepCopy() {
+  JsonObject deepCopy() {
     JsonObject result = new JsonObject();
     for (Map.Entry<String, JsonElement> entry : members.entrySet()) {
       result.add(entry.getKey(), entry.getValue().deepCopy());

gson/src/main/java/com/google/gson/JsonPrimitive.java

@@ -86,7 +86,7 @@ public final class JsonPrimitive extends JsonElement {
   }
 
   @Override
-  protected JsonPrimitive deepCopy() {
+  JsonPrimitive deepCopy() {
     return this;
   }