From 3df02668321fee3eb90bdba1f75b83e51dae762d Mon Sep 17 00:00:00 2001
From: Igor Solkin <inbox@tomclaw.com>
Date: Wed, 10 Apr 2024 23:17:41 +0300
Subject: [PATCH] Code cleanup

---
 cache/src/main/java/com/tomclaw/cache/DiskLruCache.java      | 2 +-
 cache/src/main/java/com/tomclaw/cache/SimpleFileManager.java | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/cache/src/main/java/com/tomclaw/cache/DiskLruCache.java b/cache/src/main/java/com/tomclaw/cache/DiskLruCache.java
index 5106606..74381a6 100644
--- a/cache/src/main/java/com/tomclaw/cache/DiskLruCache.java
+++ b/cache/src/main/java/com/tomclaw/cache/DiskLruCache.java
@@ -134,7 +134,7 @@ public long getJournalSize() {
     }
 
     private static void assertKeyValid(String key) {
-        if (key == null || key.length() == 0) {
+        if (key == null || key.isEmpty()) {
             throw new IllegalArgumentException(String.format("Invalid key value: '%s'", key));
         }
     }
diff --git a/cache/src/main/java/com/tomclaw/cache/SimpleFileManager.java b/cache/src/main/java/com/tomclaw/cache/SimpleFileManager.java
index 6ce799b..2b106ea 100644
--- a/cache/src/main/java/com/tomclaw/cache/SimpleFileManager.java
+++ b/cache/src/main/java/com/tomclaw/cache/SimpleFileManager.java
@@ -5,7 +5,7 @@
 
 public class SimpleFileManager implements FileManager {
 
-    private File dir;
+    private final File dir;
 
     @SuppressWarnings("WeakerAccess")
     public SimpleFileManager(File dir) {