java/groovy bean copy

beanCopy.java

@CompileStatic
class BeanUtil {
    static def copyProperties(source, target) {
        this.copyProperties(source, target, [] as String[])
    }

    static def copyProperties(source, target, String[] ex) {
        def exludeList = ['class', 'metaClass']
        exludeList.addAll(ex)
        source.properties.each { key, value ->
            if (target.hasProperty((String) key) && !(key in exludeList)) {
                target[(String) key] = value
            }
        }
    }

}