Hello! I'm seeing some issues with a class (class A) marked with Configurable annotation autowiring another class. Class A is being manually instantiated by Class X that's not Spring managed. Class A is autowiring class B. There is a delay in the instantiation order of Class A and class B. As a result, we end up hitting an NPE in class A, when it tries to invoke a method in class B. I tried debugging the issue to see in what order the 2 classes are being instantiated. I'm seeing two issues here - 1) post construct method in class A is never called 2) post construct method in class B is being called 2-3 minutes after I see a log message from an init function in class A. I've tried setting @Configurable(preconstruct = true, autowire=Autowire.BY_NAME), but no luck. Any comments/suggestions?
@aghag10 1) try to instantiate your class A by Spring itself. 2) don't use
private ClassB classB, turn it out to ClassA's constructor param.
@bvn13 1) I can't make class A spring managed since class X that's instantiating class A can not be made Spring managed. 2) I don't follow. If that's the case, class B won't be autowired anymore?
1) I got it. 2) This way - yes. But I've found an example of how to get spring bean from outside of spring-managed zone https://confluence.jaytaala.com/display/TKB/Super+simple+approach+to+accessing+Spring+beans+from+non-Spring+managed+classes+and+POJOs
Bean(Definition)PostProcessorsbut the other solutions are all easier