diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/instances/AddonUpdatesPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/instances/AddonUpdatesPage.java
index a989bde2cf..2758ad7dc5 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/instances/AddonUpdatesPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/instances/AddonUpdatesPage.java
@@ -324,7 +324,7 @@ public class AddonUpdatesPage extends BorderPane implements DecoratorPage {
                     LOG.warning("Failed to load addon icons", e);
                 }
             }
-            
+
             if (data.localAddonFile() instanceof ResourcePackFile resourcePackFile) {
                 Image image = resourcePackFile.loadIcon();
 
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/JavaManagementPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/JavaManagementPage.java
index ba7d4c8cdb..11acc5079f 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/JavaManagementPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/JavaManagementPage.java
@@ -315,7 +315,7 @@ public final class JavaManagementPage extends ListPageBase<JavaRuntime> {
 
                 if (oldItem != item) {
                     content.getTags().clear();
-                    content.addTag(item.getArchitecture().getDisplayName());                    
+                    content.addTag(item.getArchitecture().getDisplayName());
                 }
 
                 SVG newRemoveIcon = item.isManaged() ? SVG.DELETE_FOREVER : SVG.DELETE;
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/game/GameAssetDownloadTask.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/game/GameAssetDownloadTask.java
index ff4822c7bc..a7af57bcbf 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/game/GameAssetDownloadTask.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/game/GameAssetDownloadTask.java
@@ -25,7 +25,7 @@ import static org.jackhuang.hmcl.util.logging.Logger.LOG;
  * @author huangyuhui
  */
 public final class GameAssetDownloadTask extends Task<Void> {
-    
+
     private final AbstractDependencyManager dependencyManager;
     private final GameInstanceManifest manifest;
     private final AssetIndexInfo assetIndexInfo;
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/function/ExceptionalSupplier.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/function/ExceptionalSupplier.java
index 54bac4eb1b..d24c34c8d9 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/function/ExceptionalSupplier.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/function/ExceptionalSupplier.java
@@ -10,7 +10,7 @@ import java.util.concurrent.Callable;
  */
 public interface ExceptionalSupplier<R, E extends Exception> {
     R get() throws E;
-    
+
     default Callable<R> toCallable() {
         return this::get;
     }
diff --git a/config/checkstyle/checkstyle.xml b/config/checkstyle/checkstyle.xml
index 46890c1438..568a28fbb2 100644
--- a/config/checkstyle/checkstyle.xml
+++ b/config/checkstyle/checkstyle.xml
@@ -14,6 +14,13 @@
         <property name="max" value="2000"/>
     </module>
 
+    <module name="RegexpSingleline">
+        <property name="format" value="\s+$"/>
+        <property name="minimum" value="0"/>
+        <property name="maximum" value="0"/>
+        <property name="message" value="Line has trailing whitespace."/>
+    </module>
+
     <module name="TreeWalker">
         <module name="SuppressionCommentFilter"/> <!-- use //CHECKSTYLE:OFF (...) //CHECKSTYLE:ON to disable checkstyle: http://checkstyle.sourceforge.net/config_filters.html#SuppressionCommentFilter -->
         <module name="SuppressionXpathSingleFilter">