From 92a7e778e7394386f413cec28d67a07630f784b1 Mon Sep 17 00:00:00 2001
From: Adam Cozzette <acozzette@google.com>
Date: Fri, 1 Dec 2017 10:05:10 -0800
Subject: Integrated internal changes from Google

---
 java/core/src/main/java/com/google/protobuf/FieldSet.java | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'java/core/src/main/java/com/google/protobuf/FieldSet.java')

diff --git a/java/core/src/main/java/com/google/protobuf/FieldSet.java b/java/core/src/main/java/com/google/protobuf/FieldSet.java
index 8a9239ed..c09daa32 100644
--- a/java/core/src/main/java/com/google/protobuf/FieldSet.java
+++ b/java/core/src/main/java/com/google/protobuf/FieldSet.java
@@ -102,6 +102,11 @@ final class FieldSet<FieldDescriptorType extends
   @SuppressWarnings("rawtypes")
   private static final FieldSet DEFAULT_INSTANCE = new FieldSet(true);
 
+  /** Returns {@code true} if empty, {@code false} otherwise. */
+  boolean isEmpty() {
+    return fields.isEmpty();
+  }
+
   /** Make this FieldSet immutable from this point forward. */
   @SuppressWarnings("unchecked")
   public void makeImmutable() {
-- 
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