OpenJDK 27 · com.sun.jmx.mbeanserver.ClassLoaderRepositorySupport

Modifier and Type	Class and Description
private static class	ClassLoaderRepositorySupport.LoaderEntry

Modifier and Type	Field and Description
private static final ClassLoaderRepositorySupport.LoaderEntry[]	EMPTY_LOADER_ARRAY
private ClassLoaderRepositorySupport.LoaderEntry[]	loaders List of class loaders Only read-only actions should be performed on this object.
private final Map<ObjectName, ClassLoader>	loadersWithNames List of named class loaders.
private final Map<String, List<ClassLoader>>	search List of valid search

Access	Constructor and Description
pack-priv	ClassLoaderRepositorySupport()

Method Summary

Modifier and Type	Method and Description
private synchronized boolean	add(ObjectName name, ClassLoader cl) Same behavior as add(Object o) in `java.util.List`.
public final void	addClassLoader(ClassLoader loader) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader. Add an anonymous ClassLoader to the repository.
public final synchronized void	addClassLoader(ObjectName name, ClassLoader loader) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader. Add a named ClassLoader to the repository.
public final ClassLoader	getClassLoader(ObjectName name) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.getClassLoader. Get a named ClassLoader from the repository.
public final Class<?>	loadClass(String className) Implements javax.management.loading.ClassLoaderRepository.loadClass. Load the given class name through the list of class loaders.
private Class<?>	loadClass(final ClassLoaderRepositorySupport.LoaderEntry[] list, final String className, final ClassLoader without, final ClassLoader stop)
public final Class<?>	loadClassBefore(ClassLoader stop, String className) Implements javax.management.loading.ClassLoaderRepository.loadClassBefore. Load the given class name through the list of class loaders, stopping at the given one.
public final Class<?>	loadClassWithout(ClassLoader without, String className) Implements javax.management.loading.ClassLoaderRepository.loadClassWithout. Load the given class name through the list of class loaders, excluding the given one.
private synchronized boolean	remove(ObjectName name, ClassLoader cl) Same behavior as remove(Object o) in `java.util.List`.
public final void	removeClassLoader(ClassLoader loader) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader. Remove the specified ClassLoader to the repository.
public final synchronized void	removeClassLoader(ObjectName name) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader. Remove a named ClassLoader from the repository.
private synchronized void	startValidSearch(ClassLoader aloader, String className)
private synchronized void	stopValidSearch(ClassLoader aloader, String className)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

EMPTY_LOADER_ARRAY	back to summary
private static final ClassLoaderRepositorySupport.LoaderEntry[] EMPTY_LOADER_ARRAY

loaders	back to summary
private ClassLoaderRepositorySupport.LoaderEntry[] loaders List of class loaders Only read-only actions should be performed on this object. We do O(n) operations on this array, e.g. when removing a ClassLoader. The assumption is that the number of elements is small, probably less than ten, and that the vast majority of operations are searches (loadClass) which are by definition linear.

loadersWithNames	back to summary
private final Map<ObjectName, ClassLoader> loadersWithNames List of named class loaders.

search	back to summary
private final Map<String, List<ClassLoader>> search List of valid search

ClassLoaderRepositorySupport	back to summary
pack-priv ClassLoaderRepositorySupport()

Method Detail

add	back to summary
private synchronized boolean add(ObjectName name, ClassLoader cl) Same behavior as add(Object o) in `java.util.List`. Replace the loader list with a new one in which the new loader has been added.

addClassLoader	back to summary
public final void addClassLoader(ClassLoader loader) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader. Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader. Add an anonymous ClassLoader to the repository.

addClassLoader

back to summary

public final void addClassLoader(ClassLoader loader)

Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader.

Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader.

Add an anonymous ClassLoader to the repository.

addClassLoader	back to summary
public final synchronized void addClassLoader(ObjectName name, ClassLoader loader) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader. Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader. Add a named ClassLoader to the repository.

addClassLoader

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public final synchronized void addClassLoader(ObjectName name, ClassLoader loader)

Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader.

Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.addClassLoader.

Add a named ClassLoader to the repository.

getClassLoader	back to summary
public final ClassLoader getClassLoader(ObjectName name) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.getClassLoader. Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.getClassLoader. Get a named ClassLoader from the repository.

getClassLoader

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public final ClassLoader getClassLoader(ObjectName name)

Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.getClassLoader.

Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.getClassLoader.

Get a named ClassLoader from the repository.

loadClass back to summary

loadClass	back to summary
public final Class<?> loadClass(String className) throws ClassNotFoundException Implements javax.management.loading.ClassLoaderRepository.loadClass. Doc from javax.management.loading.ClassLoaderRepository.loadClass. Load the given class name through the list of class loaders. Each ClassLoader in turn from the ClassLoaderRepository is asked to load the class via its `ClassLoader#loadClass(String)` method. If it successfully returns a `Class` object, that is the result of this method. If it throws a `ClassNotFoundException`, the search continues with the next ClassLoader. If it throws another exception, the exception is propagated from this method. If the end of the list is reached, a `ClassNotFoundException` is thrown. Exceptions ClassNotFoundException: The specified class could not be found.

public final Class<?> loadClass(String className) throws ClassNotFoundException

Implements javax.management.loading.ClassLoaderRepository.loadClass.

Doc from javax.management.loading.ClassLoaderRepository.loadClass.

Load the given class name through the list of class loaders. Each ClassLoader in turn from the ClassLoaderRepository is asked to load the class via its ClassLoader#loadClass(String) method. If it successfully returns a Class object, that is the result of this method. If it throws a ClassNotFoundException, the search continues with the next ClassLoader. If it throws another exception, the exception is propagated from this method. If the end of the list is reached, a ClassNotFoundException is thrown.

Exceptions

ClassNotFoundException:: The specified class could not be found.

loadClass	back to summary
private Class<?> loadClass(final ClassLoaderRepositorySupport.LoaderEntry[] list, final String className, final ClassLoader without, final ClassLoader stop) throws ClassNotFoundException

loadClassBefore back to summary

loadClassBefore	back to summary
public final Class<?> loadClassBefore(ClassLoader stop, String className) throws ClassNotFoundException Implements javax.management.loading.ClassLoaderRepository.loadClassBefore. Doc from javax.management.loading.ClassLoaderRepository.loadClassBefore. Load the given class name through the list of class loaders, stopping at the given one. Each ClassLoader in turn from the ClassLoaderRepository is asked to load the class via its `ClassLoader#loadClass(String)` method. If it successfully returns a `Class` object, that is the result of this method. If it throws a `ClassNotFoundException`, the search continues with the next ClassLoader. If it throws another exception, the exception is propagated from this method. If the search reaches `stop` or the end of the list, a `ClassNotFoundException` is thrown. Typically this method is called from the `loadClass` method of `stop`, to consult loaders that appear before it in the `ClassLoaderRepository`. By stopping the search as soon as `stop` is reached, a potential deadlock with concurrent class loading is avoided. Exceptions ClassNotFoundException: The specified class could not be found.

public final Class<?> loadClassBefore(ClassLoader stop, String className) throws ClassNotFoundException

Implements javax.management.loading.ClassLoaderRepository.loadClassBefore.

Doc from javax.management.loading.ClassLoaderRepository.loadClassBefore.

Load the given class name through the list of class loaders, stopping at the given one. Each ClassLoader in turn from the ClassLoaderRepository is asked to load the class via its ClassLoader#loadClass(String) method. If it successfully returns a Class object, that is the result of this method. If it throws a ClassNotFoundException, the search continues with the next ClassLoader. If it throws another exception, the exception is propagated from this method. If the search reaches stop or the end of the list, a ClassNotFoundException is thrown.

Typically this method is called from the loadClass method of stop, to consult loaders that appear before it in the ClassLoaderRepository. By stopping the search as soon as stop is reached, a potential deadlock with concurrent class loading is avoided.

Exceptions

ClassNotFoundException:: The specified class could not be found.

loadClassWithout back to summary

loadClassWithout	back to summary
public final Class<?> loadClassWithout(ClassLoader without, String className) throws ClassNotFoundException Implements javax.management.loading.ClassLoaderRepository.loadClassWithout. Doc from javax.management.loading.ClassLoaderRepository.loadClassWithout. Load the given class name through the list of class loaders, excluding the given one. Each ClassLoader in turn from the ClassLoaderRepository, except `exclude`, is asked to load the class via its `ClassLoader#loadClass(String)` method. If it successfully returns a `Class` object, that is the result of this method. If it throws a `ClassNotFoundException`, the search continues with the next ClassLoader. If it throws another exception, the exception is propagated from this method. If the end of the list is reached, a `ClassNotFoundException` is thrown. Be aware that if a ClassLoader in the ClassLoaderRepository calls this method from its `loadClass` method, it exposes itself to a deadlock if another ClassLoader in the ClassLoaderRepository does the same thing at the same time. The `loadClassBefore` method is recommended to avoid the risk of deadlock. Exceptions ClassNotFoundException: The specified class could not be found.

public final Class<?> loadClassWithout(ClassLoader without, String className) throws ClassNotFoundException

Implements javax.management.loading.ClassLoaderRepository.loadClassWithout.

Doc from javax.management.loading.ClassLoaderRepository.loadClassWithout.

Load the given class name through the list of class loaders, excluding the given one. Each ClassLoader in turn from the ClassLoaderRepository, except exclude, is asked to load the class via its ClassLoader#loadClass(String) method. If it successfully returns a Class object, that is the result of this method. If it throws a ClassNotFoundException, the search continues with the next ClassLoader. If it throws another exception, the exception is propagated from this method. If the end of the list is reached, a ClassNotFoundException is thrown.

Be aware that if a ClassLoader in the ClassLoaderRepository calls this method from its loadClass method, it exposes itself to a deadlock if another ClassLoader in the ClassLoaderRepository does the same thing at the same time. The loadClassBefore method is recommended to avoid the risk of deadlock.

Exceptions

ClassNotFoundException:: The specified class could not be found.

remove back to summary

remove	back to summary
private synchronized boolean remove(ObjectName name, ClassLoader cl) Same behavior as remove(Object o) in `java.util.List`. Replace the loader list with a new one in which the old loader has been removed. The ObjectName may be null, in which case the entry to be removed must also have a null ObjectName and the ClassLoader values must match. If the ObjectName is not null, then the first entry with a matching ObjectName is removed, regardless of whether ClassLoader values match. (In fact, the ClassLoader parameter will usually be null in this case.)

private synchronized boolean remove(ObjectName name, ClassLoader cl)

Same behavior as remove(Object o) in java.util.List. Replace the loader list with a new one in which the old loader has been removed. The ObjectName may be null, in which case the entry to be removed must also have a null ObjectName and the ClassLoader values must match. If the ObjectName is not null, then the first entry with a matching ObjectName is removed, regardless of whether ClassLoader values match. (In fact, the ClassLoader parameter will usually be null in this case.)

removeClassLoader	back to summary
public final void removeClassLoader(ClassLoader loader) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader. Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader. Remove the specified ClassLoader to the repository. The class loader may or may not be anonymous.

removeClassLoader

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public final void removeClassLoader(ClassLoader loader)

Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader.

Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader.

Remove the specified ClassLoader to the repository. The class loader may or may not be anonymous.

removeClassLoader	back to summary
public final synchronized void removeClassLoader(ObjectName name) Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader. Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader. Remove a named ClassLoader from the repository.

removeClassLoader

back to summary

public final synchronized void removeClassLoader(ObjectName name)

Implements com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader.

Doc from com.sun.jmx.mbeanserver.ModifiableClassLoaderRepository.removeClassLoader.

Remove a named ClassLoader from the repository.

startValidSearch	back to summary
private synchronized void startValidSearch(ClassLoader aloader, String className) throws ClassNotFoundException

stopValidSearch	back to summary
private synchronized void stopValidSearch(ClassLoader aloader, String className)

pack-priv final Class ClassLoaderRepositorySupport

Nested and Inner Type Summary

Field Summary

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Method Summary

Field Detail

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Method Detail

private Class ClassLoaderRepositorySupport.LoaderEntry

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