[SOLVED] Java Beans, BeanUtils, and the Boolean wrapper class

Java Beans, BeanUtils, and the Boolean wrapper class

I'm using BeanUtils to manipulate Java objects created via JAXB, and I've run into an interesting issue. Sometimes, JAXB will create a Java object like this:

public class Bean {
    protected Boolean happy;

    public Boolean isHappy() {
        return happy;
    }

    public void setHappy(Boolean happy) {
        this.happy = happy;
    }
}

The following code works just fine:

Bean bean = new Bean();
BeanUtils.setProperty(bean, "happy", true);

However, attempting to get the happy property like so:

Bean bean = new Bean();
BeanUtils.getProperty(bean, "happy");

Results in this exception:

Exception in thread "main" java.lang.NoSuchMethodException: Property 'happy' has no getter method in class 'class Bean'

Changing everything to a primitive boolean allows both the set and get call to work. I don't have this option, however, since these are generated classes. I assume this happens because the Java Bean libraries only consider an is<name> method to represent a property if the return type is a primitive boolean, and not the wrapper type Boolean. Does anyone have a suggestion as to how to access properties like these through BeanUtils? Is there some kind of workaround I can use?

Solution

Finally I've found legal confirmation:

8.3.2 Boolean properties

In addition, for boolean properties, we allow a getter method to match the pattern:

public boolean is<PropertyName>();

From JavaBeans specification. Are you sure you haven't came across JAXB-131 bug?