Hide Gson.getNextAdapter() for the current release.

extras/src/main/java/com/google/gson/graph/GraphTypeAdapterFactory.java

@@ -20,6 +20,7 @@ import com.google.gson.Gson;
 import com.google.gson.JsonElement;
 import com.google.gson.TypeAdapter;
 import com.google.gson.TypeAdapterFactory;
+import com.google.gson.internal.GsonInternalAccess;
 import com.google.gson.internal.bind.JsonTreeReader;
 import com.google.gson.reflect.TypeToken;
 import com.google.gson.stream.JsonReader;
@@ -58,7 +59,7 @@ public final class GraphTypeAdapterFactory implements TypeAdapterFactory {
       return null;
     }
 
-    final TypeAdapter<T> typeAdapter = gson.getNextAdapter(this, type);
+    final TypeAdapter<T> typeAdapter = GsonInternalAccess.INSTANCE.getNextAdapter(gson, this, type);
     final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
     return new TypeAdapter<T>() {
       @Override public void write(JsonWriter out, T value) throws IOException {

extras/src/main/java/com/google/gson/typeadapters/RuntimeTypeAdapterFactory.java

@@ -24,6 +24,7 @@ import com.google.gson.JsonParseException;
 import com.google.gson.JsonPrimitive;
 import com.google.gson.TypeAdapter;
 import com.google.gson.TypeAdapterFactory;
+import com.google.gson.internal.GsonInternalAccess;
 import com.google.gson.internal.Streams;
 import com.google.gson.internal.bind.JsonTreeWriter;
 import com.google.gson.internal.bind.JsonTreeReader;
@@ -193,7 +194,8 @@ public final class RuntimeTypeAdapterFactory<T> implements TypeAdapterFactory {
     final Map<Class<?>, TypeAdapter<?>> subtypeToDelegate
         = new LinkedHashMap<Class<?>, TypeAdapter<?>>();
     for (Map.Entry<String, Class<?>> entry : labelToSubtype.entrySet()) {
-      TypeAdapter<?> delegate = gson.getNextAdapter(this, TypeToken.get(entry.getValue()));
+      TypeAdapter<?> delegate = GsonInternalAccess.INSTANCE
+          .getNextAdapter(gson, this, TypeToken.get(entry.getValue()));
       labelToDelegate.put(entry.getKey(), delegate);
       subtypeToDelegate.put(entry.getValue(), delegate);
     }

gson/src/main/java/com/google/gson/Gson.java

@@ -18,6 +18,7 @@ package com.google.gson;
 
 import com.google.gson.internal.ConstructorConstructor;
 import com.google.gson.internal.Excluder;
+import com.google.gson.internal.GsonInternalAccess;
 import com.google.gson.internal.Primitives;
 import com.google.gson.internal.Streams;
 import com.google.gson.internal.bind.ArrayTypeAdapter;
@@ -362,32 +363,29 @@ public final class Gson {
     }
   }
 
-  /**
-   * Returns a type adapter for {@code} type that isn't {@code skipPast}. This
-   * can be used for type adapters to compose other, simpler type adapters.
-   *
-   * @throws IllegalArgumentException if this GSON cannot serialize and
-   *     deserialize {@code type}.
-   * @since 2.1
-   */
-  public <T> TypeAdapter<T> getNextAdapter(TypeAdapterFactory skipPast, TypeToken<T> type) {
-    boolean skipPastFound = false;
+  static {
+    GsonInternalAccess.INSTANCE = new GsonInternalAccess() {
+      @Override public <T> TypeAdapter<T> getNextAdapter(
+          Gson gson, TypeAdapterFactory skipPast, TypeToken<T> type) {
+        boolean skipPastFound = false;
 
-    for (TypeAdapterFactory factory : factories) {
-      if (!skipPastFound) {
-        if (factory == skipPast) {
-          skipPastFound = true;
+        for (TypeAdapterFactory factory : gson.factories) {
+          if (!skipPastFound) {
+            if (factory == skipPast) {
+              skipPastFound = true;
+            }
+            continue;
+          }
+
+          TypeAdapter<T> candidate = factory.create(gson, type);
+          if (candidate != null) {
+            return candidate;
+          }
         }
-        continue;
-      }
 
-      TypeAdapter<T> candidate = factory.create(this, type);
-      if (candidate != null) {
-        return candidate;
+        throw new IllegalArgumentException("GSON cannot serialize " + type);
       }
-    }
-
-    throw new IllegalArgumentException("GSON cannot serialize " + type);
+    };
   }
 
   /**

gson/src/main/java/com/google/gson/TreeTypeAdapter.java

@@ -17,6 +17,7 @@
 package com.google.gson;
 
 import com.google.gson.internal.$Gson$Preconditions;
+import com.google.gson.internal.GsonInternalAccess;
 import com.google.gson.internal.Streams;
 import com.google.gson.reflect.TypeToken;
 import com.google.gson.stream.JsonReader;
@@ -75,7 +76,7 @@ final class TreeTypeAdapter<T> extends TypeAdapter<T> {
     TypeAdapter<T> d = delegate;
     return d != null
         ? d
-        : (delegate = gson.getNextAdapter(skipPast, typeToken));
+        : (delegate = GsonInternalAccess.INSTANCE.getNextAdapter(gson, skipPast, typeToken));
   }
 
   /**

gson/src/main/java/com/google/gson/TypeAdapter.java

@@ -68,7 +68,7 @@ import java.io.Writer;
  * nextLong()}, {@code nextString()} or {@code nextNull()}. Writers should make
  * exactly one call to one of <code>value()</code> or <code>nullValue()</code>.
  * For arrays, type adapters should start with a call to {@code beginArray()},
- * convert all elements, and finish with a call to {@code endArray}. For
+ * convert all elements, and finish with a call to {@code endArray()}. For
  * objects, they should start with {@code beginObject()}, convert the object,
  * and finish with {@code endObject()}. Failing to convert a value or converting
  * too many values may cause the application to crash.

gson/src/main/java/com/google/gson/internal/Excluder.java

@@ -141,7 +141,7 @@ public final class Excluder implements TypeAdapterFactory, Cloneable {
         TypeAdapter<T> d = delegate;
         return d != null
             ? d
-            : (delegate = gson.getNextAdapter(Excluder.this, type));
+            : (delegate = GsonInternalAccess.INSTANCE.getNextAdapter(gson, Excluder.this, type));
       }
     };
   }

gson/src/main/java/com/google/gson/internal/GsonInternalAccess.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2011 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.internal;
+
+import com.google.gson.Gson;
+import com.google.gson.TypeAdapter;
+import com.google.gson.TypeAdapterFactory;
+import com.google.gson.reflect.TypeToken;
+
+/**
+ * Internal-only APIs of Gson available only to other classes in Gson.
+ */
+public abstract class GsonInternalAccess {
+  public static GsonInternalAccess INSTANCE;
+
+  /**
+   * Returns a type adapter for {@code} type that isn't {@code skipPast}. This
+   * can be used for type adapters to compose other, simpler type adapters.
+   *
+   * @throws IllegalArgumentException if this GSON cannot serialize and
+   *     deserialize {@code type}.
+   */
+  public abstract <T> TypeAdapter<T> getNextAdapter(
+      Gson gson, TypeAdapterFactory skipPast, TypeToken<T> type);
+}