Use Locale.ROOT consistently for toLower/toUpperCase

Closes gh-33708
spring-projects · Oct 16, 2024 · c765d03 · c765d03
1 parent 11d4272
commit c765d03
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Showing 4 changed files with 15 additions and 10 deletions.
diff --git a/...org/springframework/test/context/junit/jupiter/AbstractExpressionEvaluatingCondition.java b/...org/springframework/test/context/junit/jupiter/AbstractExpressionEvaluatingCondition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@
 
 import java.lang.annotation.Annotation;
 import java.lang.reflect.AnnotatedElement;
+import java.util.Locale;
 import java.util.Optional;
 import java.util.function.Function;
 
@@ -192,7 +193,7 @@ private <A extends Annotation> boolean evaluateExpression(String expression, boo
  return b;
  }
  else if (result instanceof String str) {
- str = str.trim().toLowerCase();
+ str = str.trim().toLowerCase(Locale.ROOT);
  if ("true".equals(str)) {
  return true;
  }

diff --git a/...ebsocket/src/main/java/org/springframework/web/socket/client/AbstractWebSocketClient.java b/...ebsocket/src/main/java/org/springframework/web/socket/client/AbstractWebSocketClient.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@
 import java.net.URI;
 import java.util.Collections;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.CompletableFuture;
@@ -81,7 +82,7 @@ public final CompletableFuture<WebSocketSession> execute(WebSocketHandler webSoc
  HttpHeaders headersToUse = new HttpHeaders();
  if (headers != null) {
  headers.forEach((header, values) -> {
- if (values != null && !specialHeaders.contains(header.toLowerCase())) {
+ if (values != null && !specialHeaders.contains(header.toLowerCase(Locale.ROOT))) {
  headersToUse.put(header, values);
  }
  });

diff --git a/...src/main/java/org/springframework/web/socket/server/support/AbstractHandshakeHandler.java b/...src/main/java/org/springframework/web/socket/server/support/AbstractHandshakeHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 
 import org.apache.commons.logging.Log;
@@ -154,7 +155,7 @@ public RequestUpgradeStrategy getRequestUpgradeStrategy() {
  public void setSupportedProtocols(String... protocols) {
  this.supportedProtocols.clear();
  for (String protocol : protocols) {
- this.supportedProtocols.add(protocol.toLowerCase());
+ this.supportedProtocols.add(protocol.toLowerCase(Locale.ROOT));
  }
  }
 
@@ -329,10 +330,10 @@ protected boolean isValidOrigin(ServerHttpRequest request) {
  protected String selectProtocol(List<String> requestedProtocols, WebSocketHandler webSocketHandler) {
  List<String> handlerProtocols = determineHandlerSupportedProtocols(webSocketHandler);
  for (String protocol : requestedProtocols) {
- if (handlerProtocols.contains(protocol.toLowerCase())) {
+ if (handlerProtocols.contains(protocol.toLowerCase(Locale.ROOT))) {
  return protocol;
  }
- if (this.supportedProtocols.contains(protocol.toLowerCase())) {
+ if (this.supportedProtocols.contains(protocol.toLowerCase(Locale.ROOT))) {
  return protocol;
  }
  }

diff --git a/...src/main/java/org/springframework/web/socket/sockjs/frame/AbstractSockJsMessageCodec.java b/...src/main/java/org/springframework/web/socket/sockjs/frame/AbstractSockJsMessageCodec.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,8 @@
 
 package org.springframework.web.socket.sockjs.frame;
 
+import java.util.Locale;
+
 import org.springframework.util.Assert;
 
 /**
@@ -58,7 +60,7 @@ private String escapeSockJsSpecialChars(char[] characters) {
  for (char c : characters) {
  if (isSockJsSpecialChar(c)) {
  result.append('\\').append('u');
- String hex = Integer.toHexString(c).toLowerCase();
+ String hex = Integer.toHexString(c).toLowerCase(Locale.ROOT);
  result.append("0".repeat(Math.max(0, (4 - hex.length()))));
  result.append(hex);
  }