public interface

ClassLoadingMXBean

java.lang.management.ClassLoadingMXBean

Class Overview

The management interface for the class loading system of the Java virtual machine.

A Java virtual machine has a single instance of the implementation class of this interface. This instance implementing this interface is an MXBean that can be obtained by calling the getClassLoadingMXBean() method or from the platform MBeanServer method.

The ObjectName for uniquely identifying the MXBean for the class loading system within an MBeanServer is:

java.lang:type=ClassLoading

See Also

Summary

Public Methods
abstract int getLoadedClassCount()
Returns the number of classes that are currently loaded in the Java virtual machine.
abstract long getTotalLoadedClassCount()
Returns the total number of classes that have been loaded since the Java virtual machine has started execution.
abstract long getUnloadedClassCount()
Returns the total number of classes unloaded since the Java virtual machine has started execution.
abstract boolean isVerbose()
Tests if the verbose output for the class loading system is enabled.
abstract void setVerbose(boolean value)
Enables or disables the verbose output for the class loading system.

Public Methods

public abstract int getLoadedClassCount ()

Returns the number of classes that are currently loaded in the Java virtual machine.

Returns
  • the number of currently loaded classes.

public abstract long getTotalLoadedClassCount ()

Returns the total number of classes that have been loaded since the Java virtual machine has started execution.

Returns
  • the total number of classes loaded.

public abstract long getUnloadedClassCount ()

Returns the total number of classes unloaded since the Java virtual machine has started execution.

Returns
  • the total number of unloaded classes.

public abstract boolean isVerbose ()

Tests if the verbose output for the class loading system is enabled.

Returns
  • true if the verbose output for the class loading system is enabled; false otherwise.

public abstract void setVerbose (boolean value)

Enables or disables the verbose output for the class loading system. The verbose output information and the output stream to which the verbose information is emitted are implementation dependent. Typically, a Java virtual machine implementation prints a message each time a class file is loaded.

This method can be called by multiple threads concurrently. Each invocation of this method enables or disables the verbose output globally.

Parameters
value true to enable the verbose output; false to disable.
Throws
SecurityException if a security manager exists and the caller does not have ManagementPermission("control").