Import code from internal repository to git

java/com/google/domain/registry/keyring/api/VoidKeyringModule.java

@@ -0,0 +1,32 @@
+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// 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.domain.registry.keyring.api;
+
+import dagger.Module;
+import dagger.Provides;
+
+import javax.annotation.concurrent.Immutable;
+
+/** Dagger keyring module that always returns {@link VoidKeyring} instances. */
+@Module
+@Immutable
+public final class VoidKeyringModule {
+
+  /** Always returns a {@link VoidKeyring} instance. */
+  @Provides
+  static Keyring provideKeyring() {
+    return new VoidKeyring();
+  }
+}