fix format

Author: longquanzheng

src/main/java/com/uber/cadence/samples/hello/HelloActivity.java

@@ -77,16 +77,16 @@ public String composeGreeting(String greeting, String name) {
   public static void main(String[] args) {
     // Start a worker that hosts both workflow and activity implementations.
     final WorkflowServiceTChannel.ClientOptions.Builder builder =
-            new WorkflowServiceTChannel.ClientOptions.Builder();
+        new WorkflowServiceTChannel.ClientOptions.Builder();
     // Use 5 seconds as RPC timeout
     builder.setRpcTimeout(5 * 1000);
     IWorkflowService wfService =
-            new WorkflowServiceTChannel(
-                    Strings.isNullOrEmpty(System.getenv("CADENCE_SEEDS"))
-                            ? "127.0.0.1"
-                            : System.getenv("CADENCE_SEEDS"),
-                    7933,
-                    builder.build());
+        new WorkflowServiceTChannel(
+            Strings.isNullOrEmpty(System.getenv("CADENCE_SEEDS"))
+                ? "127.0.0.1"
+                : System.getenv("CADENCE_SEEDS"),
+            7933,
+            builder.build());
     Worker.Factory factory = new Worker.Factory(wfService, DOMAIN);
     Worker worker = factory.newWorker(TASK_LIST);
     // Workflows are stateful. So you need a type to create instances.

src/main/java/com/uber/cadence/samples/hello/HelloMetric.java

@@ -45,8 +45,8 @@
 
 /**
  * Hello World Cadence workflow that executes a single activity with emitting metrics to Prometheus.
- * Check http://localhost:9098/ to see the reported metrics for scaping. 
- * Requires a local instance the Cadence service to be running.
+ * Check http://localhost:9098/ to see the reported metrics for scaping. Requires a local instance
+ * the Cadence service to be running.
  */
 public class HelloMetric {
 
@@ -122,7 +122,6 @@ private static Scope createMetricScope() throws IOException {
   }
 }
 
-
 /**
  * PrometheusScope will replace all "-"(dash) into "_"(underscore) so that it meets the requirement
  * in https://prometheus.io/docs/concepts/data_model/