Class org.springframework.context.annotation.ConfigurationClassPostProcessorTests

16:45:36.983 [Test worker] WARN  org.springframework.context.annotation.AnnotationConfigApplicationContext - Exception  encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'configurationClassPostProcessorTests.A': Unsatisfied dependency expressed through field 'z'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'configurationClassPostProcessorTests.AStrich': Unsatisfied dependency expressed through field 'b'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'b' defined in org.springframework.context.annotation.ConfigurationClassPostProcessorTests$A: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.context.annotation.ConfigurationClassPostProcessorTests$B]: Circular reference involving containing bean 'configurationClassPostProcessorTests.A' - consider declaring the factory method as static for independence from its containing instance. Factory method 'b' threw exception; nested exception is java.lang.NullPointerException: z is null
16:45:37.381 [Test worker] WARN  org.springframework.context.annotation.AnnotationConfigApplicationContext - Exception  encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'myTestBean' defined in org.springframework.context.annotation.MyTestBean: Bean name derived from @Bean method 'myTestBean' clashes with bean name for containing configuration class; please make those names unique!