TemplateInputException with Thymeleaf 3.x on Spring Boot 1.5
Problem Context When a Spring Boot 1.5 application declares a direct dependency on Thymeleaf 3.x, startup fails with a TemplateInputException that wraps a NoSuchMethodError for org.thymeleaf.spring5.SpringTemplateEngine.process(...) . The error indicates that the Spring Boot 1.5 starter expects the older org.thymeleaf.spring4 integration classes. Constraints