Add missing Apache headers

Change-Id: I16c21825480bad08c2ec28e00445814586029d2a
diff --git a/java/com/google/devtools/bazel/e4b/command/BazelNotFoundException.java b/java/com/google/devtools/bazel/e4b/command/BazelNotFoundException.java
index e67bc20..c020ebc 100644
--- a/java/com/google/devtools/bazel/e4b/command/BazelNotFoundException.java
+++ b/java/com/google/devtools/bazel/e4b/command/BazelNotFoundException.java
@@ -1,3 +1,17 @@
+// Copyright 2017 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.
+
 package com.google.devtools.bazel.e4b.command;
 
 public class BazelNotFoundException extends Exception {
diff --git a/javatests/com/google/devtools/bazel/e4b/command/CommandTest.java b/javatests/com/google/devtools/bazel/e4b/command/CommandTest.java
index 426ac34..0dd5c83 100644
--- a/javatests/com/google/devtools/bazel/e4b/command/CommandTest.java
+++ b/javatests/com/google/devtools/bazel/e4b/command/CommandTest.java
@@ -1,3 +1,17 @@
+// Copyright 2017 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.
+
 package com.google.devtools.bazel.e4b.command;
 
 import static com.google.common.truth.Truth.assertThat;