From 73addc65efa922c33c7a03e2d6f2bda7b053892b Mon Sep 17 00:00:00 2001 From: Artem Bilan Date: Thu, 31 Oct 2024 11:06:15 -0400 Subject: [PATCH] GH-3608: Use Locale.ROOT for neutral, case insensitive comparisons Fixes: #3608 Issue link: https://github.com/spring-projects/spring-kafka/issues/3608 (cherry picked from commit 07cff76a45b2f1e0437e809496de888265964c55) # Conflicts: # spring-kafka/src/main/java/org/springframework/kafka/annotation/KafkaListenerAnnotationBeanPostProcessor.java --- .../kafka/support/AbstractKafkaHeaderMapper.java | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/spring-kafka/src/main/java/org/springframework/kafka/support/AbstractKafkaHeaderMapper.java b/spring-kafka/src/main/java/org/springframework/kafka/support/AbstractKafkaHeaderMapper.java index 78d74599..1b7d9f74 100644 --- a/spring-kafka/src/main/java/org/springframework/kafka/support/AbstractKafkaHeaderMapper.java +++ b/spring-kafka/src/main/java/org/springframework/kafka/support/AbstractKafkaHeaderMapper.java @@ -24,6 +24,7 @@ import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.List; +import java.util.Locale; import java.util.Map; import java.util.Set; import java.util.stream.Collectors; @@ -352,13 +353,13 @@ public abstract class AbstractKafkaHeaderMapper implements KafkaHeaderMapper { SimplePatternBasedHeaderMatcher(String pattern, boolean negate) { Assert.notNull(pattern, "Pattern must no be null"); - this.pattern = pattern.toLowerCase(); + this.pattern = pattern.toLowerCase(Locale.ROOT); this.negate = negate; } @Override public boolean matchHeader(String headerName) { - String header = headerName.toLowerCase(); + String header = headerName.toLowerCase(Locale.ROOT); if (PatternMatchUtils.simpleMatch(this.pattern, header)) { LOGGER.debug(() -> MessageFormat.format(