Chapter 3: Notes on Interstage Operation
Notes on the Return Value of java.beans.PropertyDescriptor.getWriteMethod()
JDK/JRE 1.3.1_08 and 1.4.0_01 solved the problem "bean methods may not be obtained," which caused by a problem in java.beans.Introspector.getBeanInfor(). The operation of the java.beans.Introspector that may have produced different results on different JavaVMs (because the order in which methods should return was not defined in the JavaBeans specifications) has been corrected. Accordingly, for an application in which the parameter data type of the set***() method that sets class properties does not match the data type of the return value of the get***() method that obtains class properties, null will be returned as a return value from PropertyDescriptor.getWriteMethod(). For this reason, make a program so that these data types match.