diff --git a/java/runtime/src/main/java/io/ray/runtime/metric/MetricConfig.java b/java/runtime/src/main/java/io/ray/runtime/metric/MetricConfig.java
index 85bb9dc11..825178fa4 100644
--- a/java/runtime/src/main/java/io/ray/runtime/metric/MetricConfig.java
+++ b/java/runtime/src/main/java/io/ray/runtime/metric/MetricConfig.java
@@ -11,9 +11,8 @@ public class MetricConfig {
   private static final int DEFAULT_THREAD_POLL_SIZE = 1;
   private static final long DEFAULT_SHUTDOWN_WAIT_TIME_MS = 3000L;
 
-  public static final MetricConfig DEFAULT_CONFIG =
-    new MetricConfig(DEFAULT_TIME_INTERVAL_MS, DEFAULT_THREAD_POLL_SIZE,
-      DEFAULT_SHUTDOWN_WAIT_TIME_MS);
+  public static final MetricConfig DEFAULT_CONFIG = new MetricConfig(DEFAULT_TIME_INTERVAL_MS,
+      DEFAULT_THREAD_POLL_SIZE, DEFAULT_SHUTDOWN_WAIT_TIME_MS);
 
   private final long timeIntervalMs;
   private final int threadPoolSize;
diff --git a/java/runtime/src/main/java/io/ray/runtime/metric/MetricRegistry.java b/java/runtime/src/main/java/io/ray/runtime/metric/MetricRegistry.java
index 88c887599..7d6649d3e 100644
--- a/java/runtime/src/main/java/io/ray/runtime/metric/MetricRegistry.java
+++ b/java/runtime/src/main/java/io/ray/runtime/metric/MetricRegistry.java
@@ -33,9 +33,9 @@ public class MetricRegistry {
       if (!isRunning) {
         this.metricConfig = metricConfig;
         scheduledExecutorService = new ScheduledThreadPoolExecutor(metricConfig.threadPoolSize(),
-          new ThreadFactoryBuilder().setNameFormat("metric-registry-%d").build());
+            new ThreadFactoryBuilder().setNameFormat("metric-registry-%d").build());
         scheduledExecutorService.scheduleAtFixedRate(this::update, metricConfig.timeIntervalMs(),
-          metricConfig.timeIntervalMs(), TimeUnit.MILLISECONDS);
+            metricConfig.timeIntervalMs(), TimeUnit.MILLISECONDS);
         isRunning = true;
         LOG.info("Finished startup metric registry, metricConfig is {}.", metricConfig);
       }
@@ -47,15 +47,15 @@ public class MetricRegistry {
       if (isRunning && scheduledExecutorService != null) {
         try {
           scheduledExecutorService.shutdownNow();
-          if (!scheduledExecutorService
-            .awaitTermination(metricConfig.shutdownWaitTimeMs(), TimeUnit.MILLISECONDS)) {
+          if (!scheduledExecutorService.awaitTermination(metricConfig.shutdownWaitTimeMs(),
+              TimeUnit.MILLISECONDS)) {
             LOG.warn("Metric registry did not shut down in {}ms time, so try to shut down again.",
-              metricConfig.shutdownWaitTimeMs());
+                metricConfig.shutdownWaitTimeMs());
             scheduledExecutorService.shutdownNow();
           }
         } catch (InterruptedException e) {
           LOG.warn("Interrupted when shutting down metric registry, so try to shut down again.",
-            e.getMessage(), e);
+              e.getMessage(), e);
           scheduledExecutorService.shutdownNow();
         }
         if (scheduledExecutorService.isShutdown()) {