Description
I have a bean that worked before (spring-boot 3.1.3 and Kotlin 1.7.21), but does not work with 3.2.0 (and Kotlin 1.9.21).
The following code reproduces this issue (edited down to only show relevant parts):
typealias Timestamp = Long
interface Interval<T : Comparable<T>> : Comparable<Interval<T>> {
val end: T
// ...
}
abstract class MyEntity: Interval<Timestamp> {
//...
override var end: Timestamp = -1L
protected set
//...
}The end property above compiles down to the following pair of getter and setter (taken from javap output):
public java.lang.Long getEnd();
descriptor: ()Ljava/lang/Long;
protected void setEnd(long);
descriptor: (J)V
So this ends up in KotlinBeanInfoFactory as a call to pds.add(new PropertyDescriptor(property.getName(), getter, setter));. At this point the getter is public java.lang.Long MyEntity.getEnd() and the setter is protected void MyEntity.setEnd(long). This call finally ends up in java.beans.PropertyDescriptor.findPropertyType@L678, where the test if (propertyType != null && !params[0].isAssignableFrom(propertyType)) fails with a IntrospectionException("type mismatch between read and write methods"). The reason is that isAssignableFrom fails on comparing long and java.lang.Long.