public class Example
{
	public static void main(String[] args) throws Exception
	{
		MBeanServer server = ManagementFactory.getPlatformMBeanServer();

		// Suppose the following is an object name associated with an existing managed domain instance.
		ObjectName objectName = ...;

		MBeanInfo mbeanMetadata = server.getMBeanInfo(objectName);

		// List all attributes (metadata, not values)
		for (MBeanAttributeInfo attribute : mbeanMetadata.getAttributes())
		{
			System.out.println("Name : "+attribute.getName());
			System.out.println("Description : "+attribute.getDescription());
			System.out.println("Type : "+attribute.getType());
			System.out.println("Is Readable : "+attribute.isReadable());
			System.out.println("Is Writable : "+attribute.isWritable());
		}
	}
}

public class Example
{
	public static void main(String[] args) throws Exception
	{
		MBeanServer server = ManagementFactory.getPlatformMBeanServer();

		// Suppose that this is an object name corresponding to a valid managed domain instance.
		ObjectName objectName = ...;

		// Suppose the mbean has an attribute (a statistic in this case) PendingMessagesCount
		Long attributeValue = (Long) server.getAttribute(objectName, "PendingMessagesCount");

		System.out.println("Attribute Value : "+attributeValue);
	}
}