Mirror
, ObjectReference
, Value
public interface ClassLoaderReference extends ObjectReference
ObjectReference
with additional access to classloader-specific information from the target VM. Instances ClassLoaderReference are obtained through calls to ReferenceType.classLoader()
INVOKE_NONVIRTUAL, INVOKE_SINGLE_THREADED
Modifier and Type | Method | Description |
---|---|---|
List |
definedClasses() |
Returns a list of all classes defined by this class loader. |
List |
visibleClasses() |
Returns a list of all classes which this class loader can find by name via ClassLoader::loadClass , Class::forName and bytecode linkage in the target VM. |
toString, virtualMachine
disableCollection, enableCollection, entryCount, equals, getValue, getValues, hashCode, invokeMethod, isCollected, owningThread, referenceType, referringObjects, setValue, uniqueID, waitingThreads
List<ReferenceType> definedClasses()
List
of ReferenceType
objects mirroring types defined by this class loader. The list has length 0 if no types have been defined by this classloader.List<ReferenceType> visibleClasses()
ClassLoader::loadClass
, Class::forName
and bytecode linkage in the target VM. That is, all classes for which this class loader has been recorded as an initiating loader. Each class in the returned list was created by this class loader either by defining it directly or by delegation to another class loader (see JVMS 5.3).
The returned list does not include hidden classes or interfaces or array classes whose element type is a hidden class or interface. as they cannot be discovered by any class loader
The visible class list has useful properties with respect to the type namespace. A particular type name will occur at most once in the list. Each field or variable declared with that type name in a class defined by this class loader must be resolved to that single type.
No ordering of the returned list is guaranteed.
Note that unlike definedClasses()
and VirtualMachine.allClasses()
, some of the returned reference types may not be prepared. Attempts to perform some operations on unprepared reference types (e.g. fields()
) will throw a ClassNotPreparedException
. Use ReferenceType.isPrepared()
to determine if a reference type is prepared.
List
of ReferenceType
objects mirroring classes which this class loader can find by name. The list has length 0 if no classes are visible to this classloader.
© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/jdk.jdi/com/sun/jdi/ClassLoaderReference.html