SpringBoot + method based hierarchical roles security: ServletContext is required - spring

Question

I added method-based security and added role hierarchy. I keep getting the following exception during build:
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [org.springframework.web.servlet.HandlerMapping]: Factory
method 'defaultServletHandlerMapping' threw exception; nested
exception is java.lang.IllegalArgumentException: A ServletContext is
required to configure default servlet handling
I tried a lot of different configuration alternatives and none works...
Here is my basic web security configuration class (I added role hierarchy-related beans as you see):
#Configuration
#EnableWebSecurity
public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter {
(...)
#Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
httpSecurity
.csrf()
.disable()
(...)
.expressionHandler(webExpressionHandler())
(...)
.anyRequest().authenticated();
httpSecurity
.addFilterBefore(authenticationTokenFilterBean(), UsernamePasswordAuthenticationFilter.class);
}
#Bean
public SecurityExpressionHandler<FilterInvocation> webExpressionHandler() {
DefaultWebSecurityExpressionHandler defaultWebSecurityExpressionHandler = new DefaultWebSecurityExpressionHandler();
defaultWebSecurityExpressionHandler.setRoleHierarchy(roleHierarchy());
return defaultWebSecurityExpressionHandler;
}
#Bean
public RoleHierarchy roleHierarchy() {
RoleHierarchyImpl r = new RoleHierarchyImpl();
r.setHierarchy(Role.getHierarchy());
return r;
}
(...)
}
Here is the separate config file that I created basing on this thread:
#Configuration
#EnableGlobalMethodSecurity(prePostEnabled = true)
public class GlobalMethodSecurityConfig extends GlobalMethodSecurityConfiguration {
#Autowired
private RoleHierarchy roleHierarchy;
#Override
protected MethodSecurityExpressionHandler createExpressionHandler() {
DefaultMethodSecurityExpressionHandler expressionHandler = (DefaultMethodSecurityExpressionHandler) super.createExpressionHandler();
expressionHandler.setRoleHierarchy(roleHierarchy);
return expressionHandler;
}
}
I struggled with this for many hours. The related topics I tried are here:
Spring Boot + Spring Security + Hierarchical Roles
Error creating bean with name 'defaultServletHandlerMapping
Error creating bean with name defaultServletHandlerMapping
Every help appreciated!

Answer 1

OK, found it.
I played around with the class annotations and came to a simple solution: I removed #EnableGlobalMethodSecurity from GlobalMethodSecurityConfig and moved it to WebSecurityConfiguration, where it was before. So it looks like this:
#Configuration
#EnableWebSecurity
#EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter { (...) }
and this:
#Configuration
public class GlobalMethodSecurityConfig extends GlobalMethodSecurityConfiguration { (...) }
The most interesting part is that the accepted answer from here advises what didn't work for me.