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diff --git a/guava/src/com/google/common/base/Supplier.java b/guava/src/com/google/common/base/Supplier.java
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+/*
+ * Copyright (C) 2007 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.
+ */
+
+package com.google.common.base;
+
+import com.google.common.annotations.GwtCompatible;
+
+/**
+ * A class that can supply objects of a single type.  Semantically, this could
+ * be a factory, generator, builder, closure, or something else entirely. No
+ * guarantees are implied by this interface.
+ *
+ * @author Harry Heymann
+ * @since 2.0 (imported from Google Collections Library)
+ */
+@GwtCompatible
+public interface Supplier<T> {
+  /**
+   * Retrieves an instance of the appropriate type. The returned object may or
+   * may not be a new instance, depending on the implementation.
+   *
+   * @return an instance of the appropriate type
+   */
+  T get();
+}