Please use the following test draft to reproduce:
http://cr.openjdk.java.net/~avstepan/8132138/webrev.01/
- replace "cases" array with "cases[] = {Bean.class}"

The erratic "bean" is:

    public static class Bean {

        private int x;

        @BeanProperty(
            description = DESCRIPTION,
            bound = BOUND,
            expert = EXPERT,
            hidden = HIDDEN,
            preferred = PREFERRED,
            required = REQUIRED,
            visualUpdate = UPDATE,
            enumerationValues = {V_NAME})
        public void setX(int v) { x = v; }

        public void setX(int ... dummy) { }

        public void addPropertyChangeListener(PropertyChangeListener l) {}
        public void removePropertyChangeListener(PropertyChangeListener l) {}
    }

Sometimes the test passes, sometimes fails (JDK9 b114 + Ubuntu 14.04 Linux):
Bean (setter + overloading methods):
checking info...
invalid description: x, expected: TEST
invalid isHidden: false, expected: true
invalid required: false, expected: true
null enumerationValues
NOK