Minor: remove DocumentAdapter usage

idea/src/org/jetbrains/kotlin/idea/PluginStartupComponent.java

@@ -22,8 +22,8 @@ import com.intellij.openapi.components.ApplicationComponent;
 import com.intellij.openapi.components.ServiceManager;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.editor.EditorFactory;
-import com.intellij.openapi.editor.event.DocumentAdapter;
 import com.intellij.openapi.editor.event.DocumentEvent;
+import com.intellij.openapi.editor.event.DocumentListener;
 import com.intellij.openapi.fileEditor.FileDocumentManager;
 import com.intellij.openapi.updateSettings.impl.UpdateChecker;
 import com.intellij.openapi.vfs.VirtualFile;
@@ -68,9 +68,9 @@ public class PluginStartupComponent implements ApplicationComponent {
             LOG.debug("Excluding Kotlin plugin updates using old API", throwable);
             UpdateChecker.getDisabledToUpdatePlugins().add("org.jetbrains.kotlin");
         }
-        EditorFactory.getInstance().getEventMulticaster().addDocumentListener(new DocumentAdapter() {
+        EditorFactory.getInstance().getEventMulticaster().addDocumentListener(new DocumentListener() {
             @Override
-            public void documentChanged(DocumentEvent e) {
+            public void documentChanged(@NotNull DocumentEvent e) {
                 VirtualFile virtualFile = FileDocumentManager.getInstance().getFile(e.getDocument());
                 if (virtualFile != null && virtualFile.getFileType() == KotlinFileType.INSTANCE) {
                     KotlinPluginUpdater.Companion.getInstance().kotlinFileEdited(virtualFile);

idea/src/org/jetbrains/kotlin/idea/inspections/NamingConventionInspections.kt

@@ -10,8 +10,8 @@ import com.intellij.codeInspection.*
 import com.intellij.codeInspection.reference.RefEntity
 import com.intellij.codeInspection.reference.RefFile
 import com.intellij.codeInspection.reference.RefPackage
-import com.intellij.openapi.editor.event.DocumentAdapter
 import com.intellij.openapi.editor.event.DocumentEvent
+import com.intellij.openapi.editor.event.DocumentListener
 import com.intellij.openapi.ui.LabeledComponent
 import com.intellij.openapi.util.text.StringUtil
 import com.intellij.psi.JavaPsiFacade
@@ -132,7 +132,7 @@ class NamingConventionInspectionSettings(
             val regexField = EditorTextField(settings.namePattern, null, RegExpFileType.INSTANCE).apply {
                 setOneLineMode(true)
             }
-            regexField.document.addDocumentListener(object : DocumentAdapter() {
+            regexField.document.addDocumentListener(object : DocumentListener {
                 override fun documentChanged(e: DocumentEvent) {
                     settings.namePattern = regexField.text
                 }
@@ -387,6 +387,8 @@ class PackageNameInspection : BaseGlobalInspection() {
         }
     }
 
+    // Serialized setting
+    @Suppress("MemberVisibilityCanBePrivate")
     var namePattern: String = DEFAULT_PACKAGE_NAME_PATTERN
 
     private val namingSettings = NamingConventionInspectionSettings(

idea/src/org/jetbrains/kotlin/idea/refactoring/changeSignature/ui/KotlinChangeSignatureDialog.kt

@@ -18,8 +18,8 @@ package org.jetbrains.kotlin.idea.refactoring.changeSignature.ui
 
 import com.intellij.openapi.editor.colors.EditorColorsManager
 import com.intellij.openapi.editor.colors.EditorFontType
-import com.intellij.openapi.editor.event.DocumentAdapter
 import com.intellij.openapi.editor.event.DocumentEvent
+import com.intellij.openapi.editor.event.DocumentListener
 import com.intellij.openapi.options.ConfigurationException
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.ui.Messages
@@ -226,7 +226,7 @@ class KotlinChangeSignatureDialog(
 
                     if (editor != null) {
                         editor.addDocumentListener(
-                                object : DocumentAdapter() {
+                                object : DocumentListener {
                                     override fun documentChanged(e: DocumentEvent) {
                                         fireDocumentChanged(e, columnFinal)
                                     }

idea/src/org/jetbrains/kotlin/idea/refactoring/move/moveDeclarations/ui/MoveKotlinNestedClassesDialog.java

@@ -20,8 +20,8 @@ import com.intellij.codeInsight.lookup.LookupElement;
 import com.intellij.ide.util.ClassFilter;
 import com.intellij.ide.util.TreeClassChooser;
 import com.intellij.ide.util.TreeJavaClassChooserDialog;
-import com.intellij.openapi.editor.event.DocumentAdapter;
 import com.intellij.openapi.editor.event.DocumentEvent;
+import com.intellij.openapi.editor.event.DocumentListener;
 import com.intellij.openapi.options.ConfigurationException;
 import com.intellij.openapi.project.Project;
 import com.intellij.psi.JavaPsiFacade;
@@ -49,7 +49,6 @@ import org.jetbrains.kotlin.idea.refactoring.memberInfo.KotlinMemberInfo;
 import org.jetbrains.kotlin.idea.refactoring.memberInfo.KotlinMemberSelectionPanel;
 import org.jetbrains.kotlin.idea.refactoring.memberInfo.KotlinMemberSelectionTable;
 import org.jetbrains.kotlin.idea.refactoring.move.moveDeclarations.*;
-import static org.jetbrains.kotlin.idea.refactoring.move.moveDeclarations.MoveKotlinDeclarationsProcessorKt.MoveSource;
 import org.jetbrains.kotlin.idea.refactoring.ui.KotlinTypeReferenceEditorComboWithBrowseButton;
 import org.jetbrains.kotlin.psi.*;
 
@@ -60,6 +59,8 @@ import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.util.List;
 
+import static org.jetbrains.kotlin.idea.refactoring.move.moveDeclarations.MoveKotlinDeclarationsProcessorKt.MoveSource;
+
 public class MoveKotlinNestedClassesDialog extends RefactoringDialog {
     private static final String RECENTS_KEY = MoveKotlinNestedClassesDialog.class.getName() + ".RECENTS_KEY";
     private final KtClassOrObject originalClass;
@@ -175,9 +176,9 @@ public class MoveKotlinNestedClassesDialog extends RefactoringDialog {
             );
         }
         targetClassChooser.getChildComponent().getDocument().addDocumentListener(
-                new DocumentAdapter() {
+                new DocumentListener() {
                     @Override
-                    public void documentChanged(DocumentEvent e) {
+                    public void documentChanged(@NotNull DocumentEvent e) {
                         PsiClass aClass = JavaPsiFacade
                                 .getInstance(myProject)
                                 .findClass(targetClassChooser.getText(), GlobalSearchScope.projectScope(myProject));

idea/src/org/jetbrains/kotlin/idea/refactoring/move/moveDeclarations/ui/MoveKotlinTopLevelDeclarationsDialog.java

@@ -18,8 +18,8 @@ package org.jetbrains.kotlin.idea.refactoring.move.moveDeclarations.ui;
 
 import com.intellij.ide.util.DirectoryChooser;
 import com.intellij.openapi.editor.Document;
-import com.intellij.openapi.editor.event.DocumentAdapter;
 import com.intellij.openapi.editor.event.DocumentEvent;
+import com.intellij.openapi.editor.event.DocumentListener;
 import com.intellij.openapi.fileTypes.FileTypeManager;
 import com.intellij.openapi.options.ConfigurationException;
 import com.intellij.openapi.project.Project;
@@ -75,8 +75,8 @@ import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.io.File;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 
 import static java.util.Collections.emptyList;
 import static org.jetbrains.kotlin.idea.refactoring.move.moveDeclarations.MoveKotlinDeclarationsProcessorKt.MoveSource;
@@ -418,9 +418,9 @@ public class MoveKotlinTopLevelDeclarationsDialog extends RefactoringDialog {
         ReferenceEditorComboWithBrowseButton packageChooser =
                 new PackageNameReferenceEditorCombo("", myProject, RECENTS_KEY, RefactoringBundle.message("choose.destination.package"));
         Document document = packageChooser.getChildComponent().getDocument();
-        document.addDocumentListener(new DocumentAdapter() {
+        document.addDocumentListener(new DocumentListener() {
             @Override
-            public void documentChanged(DocumentEvent e) {
+            public void documentChanged(@NotNull DocumentEvent e) {
                 validateButtons();
             }
         });