This is an automated email from the ASF dual-hosted git repository. rmaucher pushed a commit to branch 11.0.x in repository https://gitbox.apache.org/repos/asf/tomcat.git
commit 7ae6a1150a34c9a88b1e300540d53ca3a264981e Author: opencode <[email protected]> AuthorDate: Wed Sep 30 10:54:55 2026 +0200 Return a snapshot enumeration from Request.getLocales() to prevent ConcurrentModificationExceptions when the locales list is modified while a previously returned enumeration is being iterated --- java/org/apache/catalina/connector/Request.java | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/java/org/apache/catalina/connector/Request.java b/java/org/apache/catalina/connector/Request.java index 4dfbe0ce16..d17b522151 100644 --- a/java/org/apache/catalina/connector/Request.java +++ b/java/org/apache/catalina/connector/Request.java @@ -1133,7 +1133,9 @@ public class Request implements HttpServletRequest { } if (!locales.isEmpty()) { - return Collections.enumeration(locales); + // Take a copy to prevent ConcurrentModificationExceptions if the + // list is modified while the enumeration is being iterated + return Collections.enumeration(new ArrayList<>(locales)); } ArrayList<Locale> results = new ArrayList<>(); results.add(defaultLocale); --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
