DefaultMXBeanMappingFactory.java 文件源码

@Override
final Object toNonNullOpenValue(Object value)
        throws OpenDataException {
    final Collection<?> valueCollection = (Collection<?>) value;
    if (valueCollection instanceof SortedSet<?>) {
        Comparator<?> comparator =
            ((SortedSet<?>) valueCollection).comparator();
        if (comparator != null) {
            final String msg =
                "Cannot convert SortedSet with non-null comparator: " +
                comparator;
            throw openDataException(msg, new IllegalArgumentException(msg));
        }
    }
    final Object[] openArray = (Object[])
        Array.newInstance(getOpenClass().getComponentType(),
                          valueCollection.size());
    int i = 0;
    for (Object o : valueCollection)
        openArray[i++] = elementMapping.toOpenValue(o);
    return openArray;
}