1 files changed, 7 insertions, 26 deletions
diff --git a/guava/src/com/google/common/hash/AbstractCompositeHashFunction.java b/guava/src/com/google/common/hash/AbstractCompositeHashFunction.java
index 6a0f452..41c4836 100644
--- a/guava/src/com/google/common/hash/AbstractCompositeHashFunction.java
+++ b/guava/src/com/google/common/hash/AbstractCompositeHashFunction.java
@@ -1,42 +1,23 @@
-/*
- * Copyright (C) 2011 The Guava Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2011 Google Inc. All Rights Reserved.
 
 package com.google.common.hash;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-
 import java.nio.charset.Charset;
 
 /**
  * An abstract composition of multiple hash functions. {@linkplain #newHasher()} delegates to the
  * {@code Hasher} objects of the delegate hash functions, and in the end, they are used by
  * {@linkplain #makeHash(Hasher[])} that constructs the final {@code HashCode}.
- *
- * @author Dimitris Andreou
+ * 
+ * @author andreou@google.com (Dimitris Andreou)
  */
 abstract class AbstractCompositeHashFunction extends AbstractStreamingHashFunction {
   final HashFunction[] functions;
-
+  
   AbstractCompositeHashFunction(HashFunction... functions) {
-    for (HashFunction function : functions) {
-      checkNotNull(function);
-    }
     this.functions = functions;
   }
-
+  
   /**
    * Constructs a {@code HashCode} from the {@code Hasher} objects of the functions. Each of them
    * has consumed the entire input and they are ready to output a {@code HashCode}. The order of
@@ -44,7 +25,7 @@ abstract class AbstractCompositeHashFunction extends AbstractStreamingHashFuncti
    */
   // this could be cleaner if it passed HashCode[], but that would create yet another array...
   /* protected */ abstract HashCode makeHash(Hasher[] hashers);
-
+  
   @Override
   public Hasher newHasher() {
     final Hasher[] hashers = new Hasher[functions.length];
@@ -148,6 +129,6 @@ abstract class AbstractCompositeHashFunction extends AbstractStreamingHashFuncti
       }
     };
   }
-
+  
   private static final long serialVersionUID = 0L;
 }