Thymeleaf Template Resolution Issues in Spring Boot 3.4.3 with Custom WebMvcConfigurer

When configuring Thymeleaf in Spring Boot 3.4.3 with JDK 17, developers may encounter unexpected template resolution failures when packaging the application as a JAR — even though everything works flawlessly in IDE environments like IntelliJ or Eclipse. This issue typically surfaces when a custom configuration class implements WebMvcConfigurer. ...

Posted on Tue, 26 May 2026 17:12:53 +0000 by Threehearts