Class RestartClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.springframework.boot.devtools.restart.classloader.RestartClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable, SmartClassLoader

public class RestartClassLoader
extends URLClassLoader
implements SmartClassLoader

Disposable ClassLoader used to support application restarting. Provides parent last loading for the specified URLs.

Since:

1.3.0

Author:

Andy Clement, Phillip Webb

Constructor Summary

Constructors

Constructor	Description
RestartClassLoader(ClassLoader parent, URL[] urls)	Create a new RestartClassLoader instance.
RestartClassLoader(ClassLoader parent, URL[] urls, ClassLoaderFileRepository updatedFiles)	Create a new RestartClassLoader instance.

Method Summary

Modifier and Type	Method	Description
protected Class<?>	findClass(String name)
@Nullable URL	findResource(String name)
ClassLoader	getOriginalClassLoader()
@Nullable URL	getResource(String name)
Enumeration<URL>	getResources(String name)
boolean	isClassReloadable(Class<?> classType)
Class<?>	loadClass(String name, boolean resolve)
Class<?>	publicDefineClass(String name, byte[] b, @Nullable ProtectionDomain protectionDomain)

Methods inherited from class URLClassLoader

addURL, close, definePackage, findResources, getPermissions, getResourceAsStream, getURLs, newInstance, newInstance

Methods inherited from class SecureClassLoader

defineClass, defineClass

Methods inherited from class ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RestartClassLoader

public RestartClassLoader(ClassLoader parent,
 URL[] urls)

Create a new RestartClassLoader instance.

Parameters:

parent - the parent classloader

urls - the urls managed by the classloader

RestartClassLoader

public RestartClassLoader(ClassLoader parent,
 URL[] urls,
 ClassLoaderFileRepository updatedFiles)

Create a new RestartClassLoader instance.

Parameters:

parent - the parent classloader

urls - the urls managed by the classloader

updatedFiles - any files that have been updated since the JARs referenced in URLs were created.

Method Details

getResources

public Enumeration<URL> getResources(String name)
                              throws IOException

Overrides:

getResources in class ClassLoader

Throws:

IOException

getResource

public @Nullable URL getResource(String name)

Overrides:

getResource in class ClassLoader

findResource

public @Nullable URL findResource(String name)

Overrides:

findResource in class URLClassLoader

loadClass

public Class<?> loadClass(String name,
 boolean resolve)
                   throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

findClass

protected Class<?> findClass(String name)
                      throws ClassNotFoundException

Overrides:

findClass in class URLClassLoader

Throws:

ClassNotFoundException

publicDefineClass

public Class<?> publicDefineClass(String name,
 byte[] b,
 @Nullable ProtectionDomain protectionDomain)

Specified by:

publicDefineClass in interface SmartClassLoader

getOriginalClassLoader

public ClassLoader getOriginalClassLoader()

Specified by:

getOriginalClassLoader in interface SmartClassLoader

isClassReloadable

public boolean isClassReloadable(Class<?> classType)

Specified by:

isClassReloadable in interface SmartClassLoader