[No code changes] Make consistent with Java 8 code sample (#1301)
[No code changes] Make consistent with Java 8 code sample (#1301)

Java 8 code sample: https://github.com/GoogleCloudPlatform/getting-started-java/blob/master/appengine-standard-java8/helloworld-gae-javasdk-tools/pom.xml
Shown on https://cloud.google.com/appengine/docs/standard/java/tools/using-maven Section: Before you start, step 5.
GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples