What Does Managed Bean Mean?
A managed bean (MBean) is a reusable software component for Java that represents a manageable resource including components, applications or devices. It is part of the Java management extension and is used to set applications, collect statistics and notify events.
Techopedia Explains Managed Bean
An MBean is a fundamental entity of Java Management Extensions (JMX). MBeans have an interface and class associated with them. A standard MBean is defined using a Java interface. An MBean interface takes the name of the java class it implements suffixed by an MBean. This interface contains named and typed attributes that are readable and also writable. User code does not implement the interface.