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diff --git a/java/src/test/java/com/google/protobuf/AnyTest.java b/java/src/test/java/com/google/protobuf/AnyTest.java
new file mode 100644
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+++ b/java/src/test/java/com/google/protobuf/AnyTest.java
@@ -0,0 +1,92 @@
+// 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 any_test.AnyTestProto.TestAny;
+import protobuf_unittest.UnittestProto.TestAllTypes;
+
+import junit.framework.TestCase;
+
+/**
+ * Unit tests for Any message.
+ */
+public class AnyTest extends TestCase {
+  public void testAnyGeneratedApi() throws Exception {
+    TestAllTypes.Builder builder = TestAllTypes.newBuilder();
+    TestUtil.setAllFields(builder);
+    TestAllTypes message = builder.build();
+
+    TestAny container = TestAny.newBuilder()
+        .setValue(Any.pack(message)).build();
+
+    assertTrue(container.getValue().is(TestAllTypes.class));
+    assertFalse(container.getValue().is(TestAny.class));
+
+    TestAllTypes result = container.getValue().unpack(TestAllTypes.class);
+    TestUtil.assertAllFieldsSet(result);
+
+
+    // Unpacking to a wrong type will throw an exception.
+    try {
+      TestAny wrongMessage = container.getValue().unpack(TestAny.class);
+      fail("Exception is expected.");
+    } catch (InvalidProtocolBufferException e) {
+      // expected.
+    }
+
+    // Test that unpacking throws an exception if parsing fails.
+    TestAny.Builder containerBuilder = container.toBuilder();
+    containerBuilder.getValueBuilder().setValue(
+        ByteString.copyFrom(new byte[]{0x11}));
+    container = containerBuilder.build();
+    try {
+      TestAllTypes parsingFailed = container.getValue().unpack(TestAllTypes.class);
+      fail("Exception is expected.");
+    } catch (InvalidProtocolBufferException e) {
+      // expected.
+    }
+  }
+
+  public void testCachedUnpackResult() throws Exception {
+    TestAllTypes.Builder builder = TestAllTypes.newBuilder();
+    TestUtil.setAllFields(builder);
+    TestAllTypes message = builder.build();
+
+    TestAny container = TestAny.newBuilder()
+        .setValue(Any.pack(message)).build();
+
+    assertTrue(container.getValue().is(TestAllTypes.class));
+
+    TestAllTypes result1 = container.getValue().unpack(TestAllTypes.class);
+    TestAllTypes result2 = container.getValue().unpack(TestAllTypes.class);
+    assertTrue(result1 == result2);
+  }
+}