diff --git a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/CleanupInterval.java b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/CleanupInterval.java
index 9874881..56c64fd 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/CleanupInterval.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/CleanupInterval.java
@@ -17,10 +17,8 @@
 import static java.lang.annotation.RetentionPolicy.RUNTIME;
 
 import com.google.inject.BindingAnnotation;
-
 import java.lang.annotation.Retention;
 
 @Retention(RUNTIME)
 @BindingAnnotation
-public @interface CleanupInterval {
-}
+public @interface CleanupInterval {}
diff --git a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSession.java b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSession.java
index e9a2b70..dac8be6 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSession.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSession.java
@@ -27,7 +27,6 @@
 import com.google.inject.Provider;
 import com.google.inject.servlet.RequestScoped;
 import com.google.inject.servlet.ServletScopes;
-
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
@@ -39,18 +38,26 @@
     protected void configure() {
       bindScope(RequestScoped.class, ServletScopes.REQUEST);
       DynamicItem.bind(binder(), WebSession.class)
-          .to(FlatFileWebSession.class).in(RequestScoped.class);
+          .to(FlatFileWebSession.class)
+          .in(RequestScoped.class);
     }
   }
 
   @Inject
-  FlatFileWebSession(@RootRelative final Provider<HttpServletRequest> request,
+  FlatFileWebSession(
+      @RootRelative final Provider<HttpServletRequest> request,
       @RootRelative final Provider<HttpServletResponse> response,
       final WebSessionManagerFactory managerFactory,
-      final FlatFileWebSessionCache cache, final AuthConfig authConfig,
+      final FlatFileWebSessionCache cache,
+      final AuthConfig authConfig,
       final Provider<AnonymousUser> anonymousProvider,
       final RequestFactory identified) {
-    super(request.get(), response.get(), managerFactory.create(cache),
-        authConfig, anonymousProvider, identified);
+    super(
+        request.get(),
+        response.get(),
+        managerFactory.create(cache),
+        authConfig,
+        anonymousProvider,
+        identified);
   }
 }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCache.java b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCache.java
index a240aee..f6726ed 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCache.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCache.java
@@ -22,10 +22,6 @@
 import com.google.gerrit.httpd.WebSessionManager.Val;
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.ObjectInputStream;
@@ -44,12 +40,12 @@
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.ExecutionException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 @Singleton
-public class FlatFileWebSessionCache implements
-    Cache<String, WebSessionManager.Val> {
-  private static final Logger log = LoggerFactory
-      .getLogger(FlatFileWebSessionCache.class);
+public class FlatFileWebSessionCache implements Cache<String, WebSessionManager.Val> {
+  private static final Logger log = LoggerFactory.getLogger(FlatFileWebSessionCache.class);
 
   private final Path dir;
 
@@ -90,8 +86,7 @@
   }
 
   @Override
-  public Val get(String key, Callable<? extends Val> valueLoader)
-      throws ExecutionException {
+  public Val get(String key, Callable<? extends Val> valueLoader) throws ExecutionException {
     Val value = getIfPresent(key);
     if (value == null) {
       try {
@@ -149,12 +144,13 @@
   @Override
   public void put(String key, Val value) {
     try {
-      Path tempFile =
-          Files.createTempFile(dir, UUID.randomUUID().toString(), null);
+      Path tempFile = Files.createTempFile(dir, UUID.randomUUID().toString(), null);
       try (OutputStream fileStream = Files.newOutputStream(tempFile);
           ObjectOutputStream objStream = new ObjectOutputStream(fileStream)) {
         objStream.writeObject(value);
-        Files.move(tempFile, tempFile.resolveSibling(key),
+        Files.move(
+            tempFile,
+            tempFile.resolveSibling(key),
             StandardCopyOption.REPLACE_EXISTING,
             StandardCopyOption.ATOMIC_MOVE);
       }
@@ -187,8 +183,13 @@
           ObjectInputStream objStream = new ObjectInputStream(fileStream)) {
         return (Val) objStream.readObject();
       } catch (ClassNotFoundException e) {
-        log.warn("Entry " + path + " in cache " + dir + " has an incompatible "
-            + "class and can't be deserialized. Invalidating entry.");
+        log.warn(
+            "Entry "
+                + path
+                + " in cache "
+                + dir
+                + " has an incompatible "
+                + "class and can't be deserialized. Invalidating entry.");
         invalidate(path.getFileName().toString());
       } catch (IOException e) {
         log.warn("Cannot read cache " + dir, e);
diff --git a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCacheCleaner.java b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCacheCleaner.java
index c6c89a6..d5842a0 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCacheCleaner.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCacheCleaner.java
@@ -40,13 +40,13 @@
 
     @Override
     public void start() {
-      queue.getDefaultQueue().scheduleAtFixedRate(cleaner, INITIAL_DELAY_MS,
-          cleanupInterval, MILLISECONDS);
+      queue
+          .getDefaultQueue()
+          .scheduleAtFixedRate(cleaner, INITIAL_DELAY_MS, cleanupInterval, MILLISECONDS);
     }
 
     @Override
-    public void stop() {
-    }
+    public void stop() {}
   }
 
   private FlatFileWebSessionCache flatFileWebSessionCache;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/Module.java b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/Module.java
index a5ea0c3..c98d0e9 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/Module.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/Module.java
@@ -24,9 +24,7 @@
 import com.google.gerrit.server.config.SitePaths;
 import com.google.inject.Provides;
 import com.google.inject.Singleton;
-
 import com.googlesource.gerrit.plugins.websession.flatfile.FlatFileWebSessionCacheCleaner.CleanerLifecycle;
-
 import java.nio.file.Path;
 import java.nio.file.Paths;
 
@@ -42,10 +40,10 @@
   @Provides
   @Singleton
   @WebSessionDir
-  Path getWebSessionDir(SitePaths site, PluginConfigFactory cfg,
-      @PluginName String pluginName) {
-    return Paths.get(cfg.getFromGerritConfig(pluginName).getString("directory",
-        site.site_path + "/websessions"));
+  Path getWebSessionDir(SitePaths site, PluginConfigFactory cfg, @PluginName String pluginName) {
+    return Paths.get(
+        cfg.getFromGerritConfig(pluginName)
+            .getString("directory", site.site_path + "/websessions"));
   }
 
   @Provides
@@ -53,9 +51,7 @@
   @CleanupInterval
   Long getCleanupInterval(PluginConfigFactory cfg, @PluginName String pluginName) {
     String fromConfig =
-        Strings.nullToEmpty(cfg.getFromGerritConfig(pluginName).getString(
-            "cleanupInterval"));
-    return HOURS.toMillis(ConfigUtil.getTimeUnit(fromConfig,
-        DEFAULT_CLEANUP_INTERVAL, HOURS));
+        Strings.nullToEmpty(cfg.getFromGerritConfig(pluginName).getString("cleanupInterval"));
+    return HOURS.toMillis(ConfigUtil.getTimeUnit(fromConfig, DEFAULT_CLEANUP_INTERVAL, HOURS));
   }
 }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/WebSessionDir.java b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/WebSessionDir.java
index 02288bf..eb01bb1 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/WebSessionDir.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/websession/flatfile/WebSessionDir.java
@@ -17,10 +17,8 @@
 import static java.lang.annotation.RetentionPolicy.RUNTIME;
 
 import com.google.inject.BindingAnnotation;
-
 import java.lang.annotation.Retention;
 
 @Retention(RUNTIME)
 @BindingAnnotation
-@interface WebSessionDir {
-}
+@interface WebSessionDir {}
diff --git a/src/test/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCacheTest.java b/src/test/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCacheTest.java
index 905d6bf..7a24bd4 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCacheTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/websession/flatfile/FlatFileWebSessionCacheTest.java
@@ -18,11 +18,6 @@
 
 import com.google.common.collect.ImmutableMap;
 import com.google.gerrit.httpd.WebSessionManager.Val;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.file.DirectoryStream;
@@ -39,6 +34,9 @@
 import java.util.Map;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
 
 public class FlatFileWebSessionCacheTest {
 
@@ -95,8 +93,7 @@
     Files.createFile(dir.resolve(key));
     loadExistingKeyToCacheDir();
     List<String> keys = Arrays.asList(new String[] {key, existingKey});
-    assertThat(flatFileWebSessionCache.getAllPresent(keys))
-        .containsKey(existingKey);
+    assertThat(flatFileWebSessionCache.getAllPresent(keys)).containsKey(existingKey);
   }
 
   @Test
@@ -123,12 +120,10 @@
         return null;
       }
     }
-    assertThat(flatFileWebSessionCache.get(existingKey, new ValueLoader()))
-        .isNull();
+    assertThat(flatFileWebSessionCache.get(existingKey, new ValueLoader())).isNull();
 
     loadExistingKeyToCacheDir();
-    assertThat(flatFileWebSessionCache.get(existingKey, new ValueLoader()))
-        .isNotNull();
+    assertThat(flatFileWebSessionCache.get(existingKey, new ValueLoader())).isNotNull();
   }
 
   @Test(expected = ExecutionException.class)
@@ -139,8 +134,7 @@
         throw new Exception();
       }
     }
-    assertThat(flatFileWebSessionCache.get(existingKey, new ValueLoader()))
-        .isNull();
+    assertThat(flatFileWebSessionCache.get(existingKey, new ValueLoader())).isNull();
   }
 
   @Test
@@ -213,21 +207,22 @@
   }
 
   private void emptyAndDelete(Path dir) throws IOException {
-    Files.walkFileTree(dir, new SimpleFileVisitor<Path>() {
-      @Override
-      public FileVisitResult postVisitDirectory(Path dir, IOException exc)
-          throws IOException {
-        Files.delete(dir);
-        return FileVisitResult.CONTINUE;
-      }
+    Files.walkFileTree(
+        dir,
+        new SimpleFileVisitor<Path>() {
+          @Override
+          public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
+            Files.delete(dir);
+            return FileVisitResult.CONTINUE;
+          }
 
-      @Override
-      public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
-          throws IOException {
-        Files.delete(file);
-        return FileVisitResult.CONTINUE;
-      }
-    });
+          @Override
+          public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
+              throws IOException {
+            Files.delete(file);
+            return FileVisitResult.CONTINUE;
+          }
+        });
   }
 
   private boolean isDirEmpty(final Path dir) throws IOException {