the typical cause is a non-static @bean method with a return type
The typical cause is a non-static @Bean method with a BeanDefinitionRegistryPostProcessor return type: Consider declaring such methods as 'static'. 2017-01-06 16:59:41 [localhost-startStop-1] INFO org.apache.jasper.servlet.TldScanner:log:179 At least one JAR was scanned for TLDs yet contained no TLDs.