third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/java/core/src/main/java/com/google/protobuf/Internal.java

Index: third_party/protobuf/java/core/src/main/java/com/google/protobuf/Internal.java
diff --git a/third_party/protobuf/java/core/src/main/java/com/google/protobuf/Internal.java b/third_party/protobuf/java/core/src/main/java/com/google/protobuf/Internal.java
index d1de375e146f07061bd4a5a56fe6cc4f43f3d15f..c234559ce3834f7b3ead8cf85839dc8bdbbb1c17 100644
--- a/third_party/protobuf/java/core/src/main/java/com/google/protobuf/Internal.java
+++ b/third_party/protobuf/java/core/src/main/java/com/google/protobuf/Internal.java
@@ -60,6 +60,16 @@ public final class Internal {
   static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1");
 
   /**
+   * Throws an appropriate {@link NullPointerException} if the given objects is {@code null}.
+   */
+  static <T> T checkNotNull(T obj, String message) {
+    if (obj == null) {
+      throw new NullPointerException(message);
+    }
+    return obj;
+  }
+
+  /**
    * Helper called by generated code to construct default values for string
    * fields.
    * <p>
@@ -611,12 +621,12 @@ public final class Internal {
     int getInt(int index);
 
     /**
-     * Like {@link #add(Integer)} but more efficient in that it doesn't box the element.
+     * Like {@link #add(Object)} but more efficient in that it doesn't box the element.
      */
     void addInt(int element);
 
     /**
-     * Like {@link #set(int, Integer)} but more efficient in that it doesn't box the element.
+     * Like {@link #set(int, Object)} but more efficient in that it doesn't box the element.
      */
     int setInt(int index, int element);
 
@@ -639,12 +649,12 @@ public final class Internal {
     boolean getBoolean(int index);
 
     /**
-     * Like {@link #add(Boolean)} but more efficient in that it doesn't box the element.
+     * Like {@link #add(Object)} but more efficient in that it doesn't box the element.
      */
     void addBoolean(boolean element);
 
     /**
-     * Like {@link #set(int, Boolean)} but more efficient in that it doesn't box the element.
+     * Like {@link #set(int, Object)} but more efficient in that it doesn't box the element.
      */
     boolean setBoolean(int index, boolean element);
 
@@ -667,12 +677,12 @@ public final class Internal {
     long getLong(int index);
 
     /**
-     * Like {@link #add(Long)} but more efficient in that it doesn't box the element.
+     * Like {@link #add(Object)} but more efficient in that it doesn't box the element.
      */
     void addLong(long element);
 
     /**
-     * Like {@link #set(int, Long)} but more efficient in that it doesn't box the element.
+     * Like {@link #set(int, Object)} but more efficient in that it doesn't box the element.
      */
     long setLong(int index, long element);
 
@@ -695,12 +705,12 @@ public final class Internal {
     double getDouble(int index);
 
     /**
-     * Like {@link #add(Double)} but more efficient in that it doesn't box the element.
+     * Like {@link #add(Object)} but more efficient in that it doesn't box the element.
      */
     void addDouble(double element);
 
     /**
-     * Like {@link #set(int, Double)} but more efficient in that it doesn't box the element.
+     * Like {@link #set(int, Object)} but more efficient in that it doesn't box the element.
      */
     double setDouble(int index, double element);
 
@@ -723,12 +733,12 @@ public final class Internal {
     float getFloat(int index);
 
     /**
-     * Like {@link #add(Float)} but more efficient in that it doesn't box the element.
+     * Like {@link #add(Object)} but more efficient in that it doesn't box the element.
      */
     void addFloat(float element);
 
     /**
-     * Like {@link #set(int, Float)} but more efficient in that it doesn't box the element.
+     * Like {@link #set(int, Object)} but more efficient in that it doesn't box the element.
      */
     float setFloat(int index, float element);