ModelMBeanInfoSupport.java 文件源码

private Descriptor getMBeanDescriptorNoException() {
    if (MODELMBEAN_LOGGER.isLoggable(Level.TRACE)) {
        MODELMBEAN_LOGGER.log(Level.TRACE, "Entry");
    }

    if (modelMBeanDescriptor == null)
        modelMBeanDescriptor = validDescriptor(null);

    if (MODELMBEAN_LOGGER.isLoggable(Level.TRACE)) {
        MODELMBEAN_LOGGER.log(Level.TRACE,
                "Exit, returning: " + modelMBeanDescriptor);
    }
    return (Descriptor) modelMBeanDescriptor.clone();
}