migrate to StringUtil.toLower/UpperCase, ENGLISH locale

GitOrigin-RevId: 3a8627e7aef5991ee840996c6f7f147d1f747a3b

RegExpSupport/src/org/intellij/lang/regexp/UnicodeCharacterNames.java

@@ -15,13 +15,13 @@
  */
 package org.intellij.lang.regexp;
 
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.util.ReflectionUtil;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.nio.charset.StandardCharsets;
-import java.util.Locale;
 import java.util.function.Consumer;
 
 /**
@@ -96,7 +96,7 @@ public class UnicodeCharacterNames {
         return -1; // give up
       }
       byte[] namePool = (byte[])initNamePool.invoke(null);
-      name = name.trim().toUpperCase(Locale.ROOT);
+      name = StringUtil.toUpperCase(name.trim());
       byte[] key = name.getBytes(StandardCharsets.ISO_8859_1);
       final int[][] lookup = ReflectionUtil.getField(aClass, null, int[][].class, "lookup");
       if (lookup == null) throw new RuntimeException();

images/src/org/intellij/images/editor/actions/BackgroundImageDialog.java

@@ -48,8 +48,10 @@ import java.awt.event.ActionEvent;
 import java.awt.event.ItemEvent;
 import java.awt.event.MouseEvent;
 import java.awt.image.BufferedImage;
+import java.util.Enumeration;
+import java.util.HashMap;
 import java.util.List;
-import java.util.*;
+import java.util.Map;
 
 import static com.intellij.openapi.wm.impl.IdeBackgroundUtil.*;
 
@@ -473,7 +475,7 @@ public class BackgroundImageDialog extends DialogWrapper {
     IdeBackgroundUtil.Anchor[] values = IdeBackgroundUtil.Anchor.values();
     String[] names = new String[values.length];
     for (int i = 0; i < names.length; i++) {
-      names[i] = values[i].name().replace('_', '-').toLowerCase(Locale.ENGLISH);
+      names[i] = StringUtil.toLowerCase(values[i].name().replace('_', '-'));
     }
     Color color = getSelectionBackground();
     p.setLayout(new GridLayout(3, 3, 1, 1));
@@ -490,7 +492,7 @@ public class BackgroundImageDialog extends DialogWrapper {
     String[] names = new String[values.length];
     BufferedImage image = sampleImage();
     for (int i = 0; i < names.length; i++) {
-      names[i] = values[i].name().replace('_', '-').toLowerCase(Locale.ENGLISH);
+      names[i] = StringUtil.toLowerCase(values[i].name().replace('_', '-'));
     }
     Color color = getSelectionBackground();
     p.setLayout(new GridLayout(1, values.length, 1, 1));

images/src/org/intellij/images/editor/impl/ImageEditorUI.java

@@ -69,7 +69,6 @@ import java.beans.PropertyChangeListener;
 import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.net.URL;
-import java.util.Locale;
 
 /**
  * Image editor UI
@@ -193,7 +192,7 @@ final class ImageEditorUI extends JPanel implements DataProvider, CopyProvider,
       if (format == null) {
         format = editor != null ? ImagesBundle.message("unknown.format") : "";
       } else {
-        format = format.toUpperCase(Locale.ENGLISH);
+        format = StringUtil.toUpperCase(format);
       }
       VirtualFile file = editor != null ? editor.getFile() : null;
       infoLabel.setText(

images/src/org/intellij/images/fileTypes/impl/ImageFileTypeManagerImpl.java

@@ -30,7 +30,6 @@ import org.jetbrains.annotations.NotNull;
 
 import javax.imageio.ImageIO;
 import javax.swing.*;
-import java.util.Locale;
 import java.util.Set;
 
 /**
@@ -68,9 +67,9 @@ final class ImageFileTypeManagerImpl extends ImageFileTypeManager {
   public void createFileTypes(final @NotNull FileTypeConsumer consumer) {
     final Set<String> processed = new THashSet<>();
     for (String format : ImageIO.getReaderFormatNames()) {
-      processed.add(format.toLowerCase(Locale.ENGLISH));
+      processed.add(StringUtil.toLowerCase(format));
     }
-    processed.add(IfsUtil.ICO_FORMAT.toLowerCase(Locale.ENGLISH));
+    processed.add(StringUtil.toLowerCase(IfsUtil.ICO_FORMAT));
 
     consumer.consume(IMAGE_FILE_TYPE, StringUtil.join(processed, FileTypeConsumer.EXTENSION_DELIMITER));
     consumer.consume(SvgFileType.INSTANCE, "svg");

images/src/org/intellij/images/ui/ThumbnailComponentUI.java

@@ -17,6 +17,7 @@ package org.intellij.images.ui;
 
 import com.intellij.ide.ui.UISettings;
 import com.intellij.openapi.ui.Messages;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.ui.JBColor;
 import com.intellij.util.ui.UIUtil;
 import icons.ImagesIcons;
@@ -136,7 +137,7 @@ public class ThumbnailComponentUI extends ComponentUI {
         Font font = getSmallFont().deriveFont(Font.BOLD);
         FontMetrics fontMetrics = g.getFontMetrics(font);
 
-        String format = tc.getFormat().toUpperCase();
+        String format = StringUtil.toUpperCase(tc.getFormat());
         int stringWidth = fontMetrics.stringWidth(format);
         int x = ImagesIcons.ThumbnailBlank.getIconWidth() - stringWidth + 2;
         int y = ImagesIcons.ThumbnailBlank.getIconHeight() - fontMetrics.getHeight() + 4;

java/compiler/impl/src/com/intellij/compiler/impl/CompilerCacheManager.java

@@ -22,6 +22,7 @@ import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Disposer;
 import com.intellij.openapi.util.io.FileUtil;
+import com.intellij.openapi.util.text.StringUtil;
 import org.jetbrains.annotations.NonNls;
 
 import java.io.File;
@@ -81,7 +82,7 @@ public class CompilerCacheManager implements Disposable {
 
   public static String getCompilerIdString(Compiler compiler) {
     @NonNls String description = compiler.getDescription();
-    return description.replaceAll("\\s+", "_").replaceAll("[\\.\\?]", "_").toLowerCase();
+    return StringUtil.toLowerCase(description.replaceAll("\\s+", "_").replaceAll("[\\.\\?]", "_"));
   }
   
   synchronized void flushCaches() {

java/compiler/javac2/src/com/intellij/ant/Javac2.java

@@ -582,10 +582,10 @@ public class Javac2 extends Javac {
         return myFormCache.get(formFilePath);
       }
 
-      String lowerFormFilePath = formFilePath.toLowerCase();
+      String lowerFormFilePath = formFilePath.toLowerCase(Locale.ENGLISH);
       log("Searching for form " + lowerFormFilePath, Project.MSG_VERBOSE);
       for (File file : myFormFiles) {
-        String name = file.getAbsolutePath().replace(File.separatorChar, '/').toLowerCase();
+        String name = file.getAbsolutePath().replace(File.separatorChar, '/').toLowerCase(Locale.ENGLISH);
         log("Comparing with " + name, Project.MSG_VERBOSE);
         if (name.endsWith(lowerFormFilePath)) {
           return loadForm(formFilePath, new FileInputStream(file));

java/compiler/javac2/src/com/intellij/ant/PrefixedPath.java

@@ -19,6 +19,7 @@ import org.apache.tools.ant.Project;
 import org.apache.tools.ant.types.Path;
 
 import java.io.File;
+import java.util.Locale;
 
 /**
  * Allows to specify relative output prefix for Path.
@@ -50,7 +51,7 @@ public class PrefixedPath extends Path {
     String prefix = myPrefix;
     if (prefix != null) {
       prefix = trimStartSlash(ensureEndsWithSlash(prefix));
-      if (!relativePath.toLowerCase().startsWith(prefix.toLowerCase())) {
+      if (!relativePath.toLowerCase(Locale.ENGLISH).startsWith(prefix.toLowerCase(Locale.ENGLISH))) {
         return null;
       }
       relativePath = relativePath.substring(prefix.length());

java/compiler/openapi/src/com/intellij/compiler/ant/BuildProperties.java

@@ -21,6 +21,7 @@ import com.intellij.openapi.module.ModuleManager;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.projectRoots.Sdk;
 import com.intellij.openapi.roots.ModuleRootManager;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vfs.VfsUtil;
 import com.intellij.openapi.vfs.VirtualFile;
 import org.jetbrains.annotations.NonNls;
@@ -223,7 +224,7 @@ public abstract class BuildProperties extends CompositeGenerator {
    */
   @NonNls
   public static String convertName(@NonNls final String name) {
-    return name.replaceAll("\"", "").replaceAll("\\s+", "_").toLowerCase();
+    return StringUtil.toLowerCase(name.replaceAll("\"", "").replaceAll("\\s+", "_"));
   }
 
   @NonNls

java/debugger/impl/src/com/intellij/debugger/ui/tree/render/HexRenderer.java

@@ -4,6 +4,7 @@ package com.intellij.debugger.ui.tree.render;
 import com.intellij.debugger.engine.evaluation.EvaluationContext;
 import com.intellij.debugger.ui.tree.ValueDescriptor;
 import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.util.text.StringUtil;
 import com.sun.jdi.*;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
@@ -59,27 +60,27 @@ public class HexRenderer extends NodeRendererImpl {
   static void appendHexValue(@NotNull PrimitiveValue value, StringBuilder buf) {
     if (value instanceof CharValue) {
       long longValue = value.longValue();
-      buf.append("0x").append(Long.toHexString(longValue).toUpperCase());
+      buf.append("0x").append(StringUtil.toUpperCase(Long.toHexString(longValue)));
     }
     else if (value instanceof ByteValue) {
-      String strValue = Integer.toHexString(value.byteValue()).toUpperCase();
+      String strValue = StringUtil.toUpperCase(Integer.toHexString(value.byteValue()));
       if (strValue.length() > 2) {
         strValue = strValue.substring(strValue.length() - 2);
       }
       buf.append("0x").append(strValue);
     }
     else if (value instanceof ShortValue) {
-      String strValue = Integer.toHexString(value.shortValue()).toUpperCase();
+      String strValue = StringUtil.toUpperCase(Integer.toHexString(value.shortValue()));
       if (strValue.length() > 4) {
         strValue = strValue.substring(strValue.length() - 4);
       }
       buf.append("0x").append(strValue);
     }
     else if (value instanceof IntegerValue) {
-      buf.append("0x").append(Integer.toHexString(value.intValue()).toUpperCase());
+      buf.append("0x").append(StringUtil.toUpperCase(Integer.toHexString(value.intValue())));
     }
     else if (value instanceof LongValue) {
-      buf.append("0x").append(Long.toHexString(value.longValue()).toUpperCase());
+      buf.append("0x").append(StringUtil.toUpperCase(Long.toHexString(value.longValue())));
     }
     else {
       LOG.assertTrue(false);

java/execution/impl/src/com/intellij/execution/JavaTestFrameworkRunnableState.java

@@ -273,8 +273,7 @@ public abstract class JavaTestFrameworkRunnableState<T extends
       }
     } else if (isExecutorDisabledInForkedMode()) {
       final String actionName = executor.getActionName();
-      throw new CantRunException(actionName + " is disabled in fork mode.<br/>Please change fork mode to &lt;none&gt; to " + actionName.toLowerCase(
-        Locale.ENGLISH) + ".");
+      throw new CantRunException(actionName + " is disabled in fork mode.<br/>Please change fork mode to &lt;none&gt; to " + StringUtil.toLowerCase(actionName) + ".");
     }
 
     final JavaParameters javaParameters = getJavaParameters();

java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/classpath/ChangeLibraryLevelActionBase.java

@@ -128,7 +128,7 @@ public abstract class ChangeLibraryLevelActionBase extends AnAction {
           }
           catch (IOException e) {
             final String actionName = getActionName();
-            final String message = "Cannot " + actionName.toLowerCase() + " file " + from.getAbsolutePath() + ": " + e.getMessage();
+            final String message = "Cannot " + StringUtil.toLowerCase(actionName) + " file " + from.getAbsolutePath() + ": " + e.getMessage();
             Messages.showErrorDialog(ChangeLibraryLevelActionBase.this.myProject, message, "Cannot " + actionName);
             LOG.info(e);
             return;

java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/libraryEditor/LibraryRootsTreeSpeedSearch.java

@@ -15,6 +15,7 @@
  */
 package com.intellij.openapi.roots.ui.configuration.libraryEditor;
 
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.ui.TreeSpeedSearch;
 import com.intellij.ui.treeStructure.Tree;
 
@@ -40,7 +41,7 @@ class LibraryRootsTreeSpeedSearch extends TreeSpeedSearch {
         return false;
       }
       if (!hasCapitals(pattern)) { // be case-sensitive only if user types capitals
-        str = str.toLowerCase();
+        str = StringUtil.toLowerCase(str);
       }
       if (pattern.contains(File.separator)) {
         return compare(str,pattern);

java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/projectRoot/LibrariesContainer.java

@@ -40,7 +40,7 @@ public interface LibrariesContainer {
 
   enum LibraryLevel {GLOBAL, PROJECT, MODULE;
     public String toString() {
-      return StringUtil.capitalize(name().toLowerCase());
+      return StringUtil.capitalize(StringUtil.toLowerCase(name()));
     }
   }
 

java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightUtil.java

@@ -1011,7 +1011,7 @@ public class HighlightUtil extends HighlightUtilBase {
 
     boolean isInt = PsiLiteralExpressionImpl.INTEGER_LITERALS.contains(type);
     boolean isFP = PsiLiteralExpressionImpl.REAL_LITERALS.contains(type);
-    String text = isInt || isFP ? literal.getText().toLowerCase() : literal.getText();
+    String text = isInt || isFP ? StringUtil.toLowerCase(literal.getText()) : literal.getText();
     Object value = expression.getValue();
 
     if (file != null) {

java/java-analysis-impl/src/com/intellij/codeInspection/BlockMarkerCommentsInspection.java

@@ -14,7 +14,8 @@ import com.intellij.util.ProcessingContext;
 import org.jetbrains.annotations.Nls;
 import org.jetbrains.annotations.NotNull;
 
-import static com.intellij.patterns.PsiJavaPatterns.*;
+import static com.intellij.patterns.PsiJavaPatterns.or;
+import static com.intellij.patterns.PsiJavaPatterns.psiElement;
 
 /**
  * @author Dmitry Batkovich
@@ -71,7 +72,7 @@ public class BlockMarkerCommentsInspection extends AbstractBaseJavaLocalInspecti
         if (prefix != null && rawCommentText.startsWith(prefix)) {
           rawCommentText = rawCommentText.substring(prefix.length());
         }
-        final String commentText = rawCommentText.trim().toLowerCase();
+        final String commentText = StringUtil.toLowerCase(rawCommentText.trim());
         if (!commentText.startsWith(END_WORD) || StringUtil.split(commentText, " ").size() > 3) {
           return;
         }

java/java-analysis-impl/src/com/intellij/codeInspection/dataFlow/DataFlowInstructionVisitor.java

@@ -9,6 +9,7 @@ import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.util.Pair;
 import com.intellij.openapi.util.TextRange;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.*;
 import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.psi.util.PsiTypesUtil;
@@ -353,7 +354,7 @@ final class DataFlowInstructionVisitor extends StandardInstructionVisitor {
     @NotNull
     @Override
     public String toString() {
-      return name().toLowerCase(Locale.ENGLISH);
+      return StringUtil.toLowerCase(name());
     }
 
     public Object value() {

java/java-impl/src/com/intellij/codeInsight/daemon/impl/JavaColorProvider.java

@@ -268,9 +268,9 @@ public class JavaColorProvider implements ElementColorProvider {
         text = "0x";
         Color c = new Color(newValue, hasAlpha);
         if (hasAlpha) {
-          text += Integer.toHexString(c.getAlpha()).toUpperCase();
+          text += StringUtil.toUpperCase(Integer.toHexString(c.getAlpha()));
         }
-        text += ColorUtil.toHex(c).toUpperCase();
+        text += StringUtil.toUpperCase(ColorUtil.toHex(c));
       }
       else {
         text = Integer.toString(newValue);

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeClassSignatureFromUsageFix.java

@@ -19,6 +19,7 @@ import com.intellij.codeInsight.daemon.QuickFixBundle;
 import com.intellij.codeInsight.intention.impl.BaseIntentionAction;
 import com.intellij.openapi.editor.Editor;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.*;
 import com.intellij.refactoring.changeClassSignature.ChangeClassSignatureDialog;
 import com.intellij.refactoring.changeClassSignature.TypeParameterInfo;
@@ -175,7 +176,7 @@ public class ChangeClassSignatureFromUsageFix extends BaseIntentionAction {
 
     @NotNull
     public String suggest(@NotNull PsiClassType type) {
-      return suggestUnusedName(type.getClassName().substring(0, 1).toUpperCase());
+      return suggestUnusedName(StringUtil.toUpperCase(type.getClassName().substring(0, 1)));
     }
   }
 

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/CreateConstantFieldFromUsageFix.java

@@ -20,11 +20,10 @@
 package com.intellij.codeInsight.daemon.impl.quickfix;
 
 import com.intellij.codeInsight.daemon.QuickFixBundle;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.PsiReferenceExpression;
 import org.jetbrains.annotations.NotNull;
 
-import java.util.Locale;
-
 public class CreateConstantFieldFromUsageFix extends CreateFieldFromUsageFix {
   @Override
   protected boolean createConstantField() {
@@ -35,7 +34,7 @@ public class CreateConstantFieldFromUsageFix extends CreateFieldFromUsageFix {
   protected boolean isAvailableImpl(int offset) {
     if (!super.isAvailableImpl(offset)) return false;
     String refName = myReferenceExpression.getReferenceName();
-    return refName.toUpperCase(Locale.ENGLISH).equals(refName);
+    return StringUtil.toUpperCase(refName).equals(refName);
   }
 
   public CreateConstantFieldFromUsageFix(PsiReferenceExpression referenceElement) {