spelevaluationexception

I want to have @Cacheable annotation on method with no parameter. In that case, I use @Cacheable as follows @Cacheable(value="usercache", key = "mykey") public string sayHello(){ return "test" } However, when I call this method, it doesn't get executed and it get exception as below org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 0): Property or field 'mykey' cannot be found on object of type 'org.springframework.cache.interceptor.CacheExpressionRootObject' - maybe not public? Please suggest. It seems that Spring doesn't allow you to provide a static text for the cache

I have the following interface method on which I am applying @PreAuthoriz e : @PreAuthorize("doSomething(#user.id)") void something(User user, List<User> accessList); where User is a Hibernate entity object. It gives me an error : org.springframework.expression.spel.SpelEvaluationException: EL1007E:(pos 13): Field or property 'id' cannot be found on null at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:204) There is no way that the user parameter is null, as if I remove the annotation, and inspect the value of user in the method

I am facing with the next problem, when I am trying to pass the User to the service method using SpEL, evaluate expression="commonService.userTest(user)" result="flowScope.user" spring throws me the following exception: org.springframework.expression.spel.SpelEvaluationException: EL1004E:(pos 14): Method call: Method userTest(com.x.domain.common.User) cannot be found on com.sun.proxy.$Proxy114 type But when I am passing a plain text instead of the User object, evaluate expression="commonService.userTest('Hello')" result="flowScope.user" There are no errors. @Entity @Table(name = "users")

I have SPRING METHOD security fully configured for my web application. (with PRE/POST annotations enabled). However recently I encountered a strange issue with them. Summary as follows: Summary of POJOS // User Class public class User { int id; String name; // getters and setters } // Group Class public class Group { int id; String name; // getters and setters } // GroupMembership class public class GroupMembership { private int id; private User user; private Group group; // getters and setters } PreAuthorise filter on method . @PreAuthorize("canIEditGroupProfile(#membership.group.id)") public