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diff --git a/src/com/google/gson/JsonDeserializationContext.java b/src/com/google/gson/JsonDeserializationContext.java
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+/*
+ * Copyright (C) 2008 Google Inc.
+ *
+ * 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.gson;
+
+import java.lang.reflect.Type;
+
+/**
+ * Context for deserialization that is passed to a custom deserializer during invocation of its
+ * {@link JsonDeserializer#deserialize(JsonElement, Type, JsonDeserializationContext)}
+ * method.
+ *
+ * @author Inderjeet Singh
+ * @author Joel Leitch
+ */
+public interface JsonDeserializationContext {
+
+  /**
+   * Invokes default deserialization on the specified object. It should never be invoked on
+   * the element received as a parameter of the
+   * {@link JsonDeserializer#deserialize(JsonElement, Type, JsonDeserializationContext)} method. Doing
+   * so will result in an infinite loop since Gson will in-turn call the custom deserializer again.
+   *
+   * @param json the parse tree.
+   * @param typeOfT type of the expected return value.
+   * @param <T> The type of the deserialized object.
+   * @return An object of type typeOfT.
+   * @throws JsonParseException if the parse tree does not contain expected data.
+   */
+  public <T> T deserialize(JsonElement json, Type typeOfT) throws JsonParseException;
+}
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