Javadoc on beanClass(Class) method (only this one method) says that the JavaBeanObjectPropertyBuilder should be able to generate adapters for Java Beans of different types and that this method is useful in this situation. But doing so ( calling only .beanClass(Class) ) results in creation of JavaBeanObjectProperty object that throws "java.lang.IllegalArgumentException: object is not an instance of declaring class" as a result of either getValue() or setValue(Object) method calls.

Problem is that calling beanClass(Class) method does not help to reuse this component once the build() method has been successfully executed. The only way to reuse instantiated builder is to call both setter(Method) and getter(Method) with null as argument.