(sorry, the initial bug was fully rewritten)


This is some boundary case. As it follows from the bean spec (not sure if it is the latest one: http://download.oracle.com/otndocs/jcp/7224-javabeans-1.01-fr-spec-oth-JSpec/ ), "accessor methods can have arbitrary names", but it is recommended to use something like "getXxx", where "xxx" is a property name.

Here is some degenerate case:

    public static class C {
        private final int x = 42;
        @BeanProperty(expert = true, description = "TEST")
        public int get() { return x; }
    }
    
    public static void main(String[] args) throws Exception {
        
        BeanInfo i = Introspector.getBeanInfo(C.class, Object.class);
        
        if (i.getPropertyDescriptors().length > 0) {
            PropertyDescriptor d = i.getPropertyDescriptors()[0];
            System.out.println(d.getShortDescription());
            System.out.println(d.isExpert());
        } else {
            System.out.println("no properties!");
        }
    }

Output (Win 7, JDK9 b72):
no properties!

please try to change "get" to "get_" -> the output is as expected:
TEST
true