Reverts third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/java/core/src/test/java/com/google/protobuf/AbstractMessageTest.java

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 22 matching lines @@
 import com.google.protobuf.Descriptors.FieldDescriptor;
 import protobuf_unittest.UnittestOptimizeFor.TestOptimizedForSize;
 import protobuf_unittest.UnittestProto;
 import protobuf_unittest.UnittestProto.ForeignMessage;
 import protobuf_unittest.UnittestProto.TestAllExtensions;
 import protobuf_unittest.UnittestProto.TestAllTypes;
 import protobuf_unittest.UnittestProto.TestPackedTypes;
 import protobuf_unittest.UnittestProto.TestRequired;
 import protobuf_unittest.UnittestProto.TestRequiredForeign;
 import protobuf_unittest.UnittestProto.TestUnpackedTypes;
+import junit.framework.TestCase;
+
 import java.util.Map;
-import junit.framework.TestCase;
 
 /**
  * Unit test for {@link AbstractMessage}.
  *
  * @author kenton@google.com Kenton Varda
  */
 public class AbstractMessageTest extends TestCase {
   /**
    * Extends AbstractMessage and wraps some other message object.  The methods
    * of the Message interface which aren't explicitly implemented by
@@ skipping 429 matching lines @@
     checkNotEqual(eUnknownFields, fUnknownFields);
     checkEqualsIsConsistent(eUnknownFields);
     checkEqualsIsConsistent(fUnknownFields);
 
     // Subsequent reconstitutions should be identical
     UnittestProto.TestEmptyMessage eUnknownFields2 =
         UnittestProto.TestEmptyMessage.parseFrom(e.toByteArray());
     checkEqualsIsConsistent(eUnknownFields, eUnknownFields2);
   }
 
+
   /**
    * Asserts that the given proto has symmetric equals and hashCode methods.
    */
   private void checkEqualsIsConsistent(Message message) {
     // Object should be equal to itself.
     assertEquals(message, message);
 
     // Object should be equal to a dynamic copy of itself.
     DynamicMessage dynamic = DynamicMessage.newBuilder(message).build();
     checkEqualsIsConsistent(message, dynamic);
@@ skipping 36 matching lines @@
         ByteString.copyFrom(new byte[]{(byte) 0x80}); // A lone continuation byte.
     try {
       AbstractMessageLite.checkByteStringIsUtf8(byteString);
       fail("Expected AbstractMessageLite.checkByteStringIsUtf8 to throw IllegalArgumentException");
     } catch (IllegalArgumentException exception) {
       assertEquals("Byte string is not UTF-8.", exception.getMessage());
     }
   }
 
 }