1 files changed, 10 insertions, 0 deletions
diff --git a/java/src/main/java/com/google/protobuf/ByteString.java b/java/src/main/java/com/google/protobuf/ByteString.java
index 9814dfc1..f376e7a1 100644
--- a/java/src/main/java/com/google/protobuf/ByteString.java
+++ b/java/src/main/java/com/google/protobuf/ByteString.java
@@ -35,6 +35,7 @@ import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.FilterOutputStream;
 import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
 
 /**
  * Immutable array of bytes.
@@ -154,6 +155,15 @@ public final class ByteString {
   }
 
   /**
+   * Constructs a new read-only {@code java.nio.ByteBuffer} with the
+   * same backing byte array.
+   */
+  public ByteBuffer asReadOnlyByteBuffer() {
+    ByteBuffer byteBuffer = ByteBuffer.wrap(this.bytes);
+    return byteBuffer.asReadOnlyBuffer();
+  }
+
+  /**
    * Constructs a new {@code String} by decoding the bytes using the
    * specified charset.
    */