java - Spring HttpSecurity - Filter Dependency Injection -

in web application, have created custom filter adding current login details org.slf4j.mdc . application uses spring boot , spring security configured purely using annotations.

here relevant parts of spring configuration,

@configuration @enablewebsecurity public class securityconfiguration extends websecurityconfigureradapter{     @inject     private customfilter customfilter;     //     @override     protected void configure(httpsecurity http) throws exception {          http.addfilter(customfilter);     } } 

the above code doesn't work. exception

caused by: java.lang.illegalargumentexception: can not set com.example.web.filter.customfilter field com.example.config.securityconfiguration.customfilter com.sun.proxy.$proxy202     @ sun.reflect.unsafefieldaccessorimpl.throwsetillegalargumentexception(unsafefieldaccessorimpl.java:164) [rt.jar:1.7.0_25]     @ sun.reflect.unsafefieldaccessorimpl.throwsetillegalargumentexception(unsafefieldaccessorimpl.java:168) [rt.jar:1.7.0_25]     @ sun.reflect.unsafeobjectfieldaccessorimpl.set(unsafeobjectfieldaccessorimpl.java:81) [rt.jar:1.7.0_25]     @ java.lang.reflect.field.set(field.java:741) [rt.jar:1.7.0_25]     @ org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor$autowiredfieldelement.inject(autowiredannotationbeanpostprocessor.java:505) [spring-beans-4.0.7.release.jar:4.0.7.release]     ... 76 more 

but 1 work.

@configuration @enablewebsecurity public class securityconfiguration extends websecurityconfigureradapter{     //     @override     protected void configure(httpsecurity http) throws exception {          http.addfilter(new customfilter());     } } 

in knowledge recommended let spring container manage initialization why tried first approach. can tell me why dependency injection failing addfilter() method?

ps: have tried addfilterafter method also, same result. customfilter extends securitycontextholderawarerequestfilter, use addfilter().