diff --git a/jps/jps-builders/src/org/jetbrains/jps/builders/java/dependencyView/Mappings.java b/jps/jps-builders/src/org/jetbrains/jps/builders/java/dependencyView/Mappings.java
index 20206a4e4ac1..7386d5c4691e 100644
--- a/jps/jps-builders/src/org/jetbrains/jps/builders/java/dependencyView/Mappings.java
+++ b/jps/jps-builders/src/org/jetbrains/jps/builders/java/dependencyView/Mappings.java
@@ -1974,12 +1974,12 @@ public class Mappings {
           }
 
           if (interfacesChanged) {
-            for (final TypeRepr.AbstractType typ : diff.interfaces().removed()) {
-              myDelta.registerRemovedSuperClass(changedClass.name, ((TypeRepr.ClassType)typ).className);
+            for (final TypeRepr.ClassType typ : diff.interfaces().removed()) {
+              myDelta.registerRemovedSuperClass(changedClass.name, typ.className);
             }
 
-            for (final TypeRepr.AbstractType typ : diff.interfaces().added()) {
-              myDelta.registerAddedSuperClass(changedClass.name, ((TypeRepr.ClassType)typ).className);
+            for (final TypeRepr.ClassType typ : diff.interfaces().added()) {
+              myDelta.registerAddedSuperClass(changedClass.name, typ.className);
             }
           }
 
diff --git a/platform/util/ui/src/com/intellij/util/ui/UIUtil.java b/platform/util/ui/src/com/intellij/util/ui/UIUtil.java
index 835fd6421736..099df03a0ac3 100644
--- a/platform/util/ui/src/com/intellij/util/ui/UIUtil.java
+++ b/platform/util/ui/src/com/intellij/util/ui/UIUtil.java
@@ -1143,9 +1143,9 @@ public final class UIUtil {
   }
 
   /**
-   * @param c1
-   * @param c2
-   * @param factor impact of color specified in @param c2
+   * @param c1 first color to mix
+   * @param c2 second color to mix
+   * @param factor impact of color specified in {@code c2}
    * @return Mixed color
    */
   public static @NotNull Color mix(@NotNull Color c1, final Color c2, final double factor) {
diff --git a/plugins/maven/maven40-server-impl/src/com/intellij/maven/server/m40/Maven40ServerEmbedderImpl.java b/plugins/maven/maven40-server-impl/src/com/intellij/maven/server/m40/Maven40ServerEmbedderImpl.java
index b4e59d28b685..7d444b5d0c96 100644
--- a/plugins/maven/maven40-server-impl/src/com/intellij/maven/server/m40/Maven40ServerEmbedderImpl.java
+++ b/plugins/maven/maven40-server-impl/src/com/intellij/maven/server/m40/Maven40ServerEmbedderImpl.java
@@ -369,7 +369,7 @@ public class Maven40ServerEmbedderImpl extends MavenServerEmbeddedBase {
     }
   }
 
-  @SuppressWarnings({"unchecked"})
+  @SuppressWarnings("unchecked")
   public <T> T getComponent(Class<T> clazz) {
     try {
       return (T)myContainer.lookup(clazz.getName());
@@ -926,9 +926,9 @@ public class Maven40ServerEmbedderImpl extends MavenServerEmbeddedBase {
     ArtifactRepository repository = repositorySystem.buildArtifactRepository(repo);
 
     if (session != null) {
-      repositorySystem.injectMirror(session, Arrays.asList(repository));
-      repositorySystem.injectProxy(session, Arrays.asList(repository));
-      repositorySystem.injectAuthentication(session, Arrays.asList(repository));
+      repositorySystem.injectMirror(session, Collections.singletonList(repository));
+      repositorySystem.injectProxy(session, Collections.singletonList(repository));
+      repositorySystem.injectAuthentication(session, Collections.singletonList(repository));
     }
 
     return repository;
@@ -1061,6 +1061,7 @@ public class Maven40ServerEmbedderImpl extends MavenServerEmbeddedBase {
 
 
   private void customizeComponents(@Nullable MavenWorkspaceMap workspaceMap) {
+    //noinspection EmptyTryBlock
     try {
       // TODO: implement
     }
@@ -1070,6 +1071,7 @@ public class Maven40ServerEmbedderImpl extends MavenServerEmbeddedBase {
   }
 
   private void resetComponents() {
+    //noinspection EmptyTryBlock
     try {
       // TODO: implement
     }
diff --git a/xml/xml-analysis-api/src/com/intellij/xml/analysis/XmlAnalysisBundle.java b/xml/xml-analysis-api/src/com/intellij/xml/analysis/XmlAnalysisBundle.java
index e167b17f1a35..0fd8939ac70c 100644
--- a/xml/xml-analysis-api/src/com/intellij/xml/analysis/XmlAnalysisBundle.java
+++ b/xml/xml-analysis-api/src/com/intellij/xml/analysis/XmlAnalysisBundle.java
@@ -1,4 +1,4 @@
-// Copyright 2000-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.xml.analysis;
 
 import com.intellij.DynamicBundle;
@@ -11,7 +11,7 @@ import java.util.function.Supplier;
 
 public final class XmlAnalysisBundle {
   public static final @NonNls String BUNDLE = "messages.XmlAnalysisBundle";
-  private static final DynamicBundle INSTANCE = new DynamicBundle(XmlAnalysisBundle.class, BUNDLE);;
+  private static final DynamicBundle INSTANCE = new DynamicBundle(XmlAnalysisBundle.class, BUNDLE);
 
   private XmlAnalysisBundle() {
   }