diff --git a/tools/build/bazel/empty_jar.bzl b/tools/build/bazel/empty_jar.bzl
new file mode 100644
index 0000000..502c304
--- /dev/null
+++ b/tools/build/bazel/empty_jar.bzl
@@ -0,0 +1,32 @@
+# Copyright 2015 The Bazel Authors. 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.
+
+def _impl(ctx):
+    dir = ctx.label.name
+    jar = ctx.outputs.jar
+
+    cmd = [
+        "touch %s" % (jar.path),
+    ]
+
+    ctx.action(
+        outputs = [jar],
+        progress_message = "Generating empty jar for %s" % ctx.attr.name,
+        command = ";\n".join(cmd),
+    )
+
+empty_jar = rule(
+    implementation = _impl,
+    outputs = {"jar": "%{name}.jar"},
+)