The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 package org.mozilla.gecko.mozglue.generatorannotations;

 import java.lang.annotation.Retention;

 import java.lang.annotation.RetentionPolicy;

 /**

  * Used to annotate parameters which are optional on the C++ side of the bridge. The annotation is

  * used by the annotation processor to generate the appropriate C++ headers so calls into the Java

  * method all have the optional params set to the default value.

  * The default values are zero for numerical types, false for booleans, "" for strings, and null

  * for all other reference types.

  */

 @Retention(RetentionPolicy.RUNTIME)

 public @interface OptionalGeneratedParameter {}