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diff --git a/java/core/src/test/java/com/google/protobuf/EnumTest.java b/java/core/src/test/java/com/google/protobuf/EnumTest.java
new file mode 100644
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+++ b/java/core/src/test/java/com/google/protobuf/EnumTest.java
@@ -0,0 +1,76 @@
+// 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.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package com.google.protobuf;
+
+import com.google.protobuf.UnittestLite.ForeignEnumLite;
+import com.google.protobuf.UnittestLite.TestAllTypesLite;
+import protobuf_unittest.UnittestProto.ForeignEnum;
+import protobuf_unittest.UnittestProto.TestAllTypes;
+
+import junit.framework.TestCase;
+
+public class EnumTest extends TestCase {
+  
+  public void testForNumber() {
+    ForeignEnum e = ForeignEnum.forNumber(ForeignEnum.FOREIGN_BAR.getNumber());
+    assertEquals(ForeignEnum.FOREIGN_BAR, e);
+
+    e = ForeignEnum.forNumber(1000);
+    assertEquals(null, e);
+  }
+  
+  public void testForNumber_oneof() {
+    TestAllTypes.OneofFieldCase e = TestAllTypes.OneofFieldCase.forNumber(
+        TestAllTypes.OneofFieldCase.ONEOF_NESTED_MESSAGE.getNumber());
+    assertEquals(TestAllTypes.OneofFieldCase.ONEOF_NESTED_MESSAGE, e);
+
+    e = TestAllTypes.OneofFieldCase.forNumber(1000);
+    assertEquals(null, e);
+  }
+  
+  public void testForNumberLite() {
+    ForeignEnumLite e = ForeignEnumLite.forNumber(ForeignEnumLite.FOREIGN_LITE_BAR.getNumber());
+    assertEquals(ForeignEnumLite.FOREIGN_LITE_BAR, e);
+
+    e = ForeignEnumLite.forNumber(1000);
+    assertEquals(null, e);
+  }
+  
+  public void testForNumberLite_oneof() {
+    TestAllTypesLite.OneofFieldCase e = TestAllTypesLite.OneofFieldCase.forNumber(
+        TestAllTypesLite.OneofFieldCase.ONEOF_NESTED_MESSAGE.getNumber());
+    assertEquals(TestAllTypesLite.OneofFieldCase.ONEOF_NESTED_MESSAGE, e);
+
+    e = TestAllTypesLite.OneofFieldCase.forNumber(1000);
+    assertEquals(null, e);
+  }
+}
+