Branch: refs/heads/5.3 Home: https://github.com/hibernate/hibernate-validator Commit: e4c7094aacb0ab659d2aa57a3e30f389b1294972 https://github.com/hibernate/hibernate-validator/commit/e4c7094aacb0ab659... Author: Mert ÇALIŞKAN <mert(a)t2.com.tr&gt; Date: 2016-10-21 (Fri, 21 Oct 2016) Changed paths: M engine/src/main/java/org/hibernate/validator/internal/util/StringHelper.java M engine/src/test/java/org/hibernate/validator/test/internal/util/StringHelperTest.java Log Message: ----------- HV-1140 Use ROOT locale in StringHelper#decapitalize Before that, we could have locale specific behaviors when lowercasing. It was especially true for the Turkish locale - which is often cited as an example of this issue.