java.lang.Object
- java.lang.ClassLoader
- - net.bytebuddy.dynamic.loading.InjectionClassLoader
  - - net.bytebuddy.dynamic.loading.ByteArrayClassLoader

Direct Known Subclasses:

ByteArrayClassLoader.ChildFirst
```
public class ByteArrayClassLoader
extends InjectionClassLoader
```
A ClassLoader that is capable of loading explicitly defined classes. The class loader will free any binary resources once a class that is defined by its binary data is loaded. This class loader is thread safe since the class loading mechanics are only called from synchronized context.

Note: Instances of this class loader return URLs for their represented class loaders with the bytebuddy schema. These URLs do not represent URIs as two classes with the same name yield identical URLs but might represents different byte arrays.

Note: Any class and package definition is performed using the creator's java.security.AccessControlContext.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`ByteArrayClassLoader.ChildFirst`	A `ByteArrayClassLoader` which applies child-first semantics for the given type definitions.
`protected class`	`ByteArrayClassLoader.ClassDefinitionAction`	An action for defining a located class that is not yet loaded.
`protected static class`	`ByteArrayClassLoader.EmptyEnumeration`	An enumeration without any elements.
`protected static interface`	`ByteArrayClassLoader.PackageLookupStrategy`	A package lookup strategy for locating a package by name.
`static class`	`ByteArrayClassLoader.PersistenceHandler`	A persistence handler decides on whether the byte array that represents a loaded class is exposed by the `ClassLoader.getResourceAsStream(String)` method.
`protected static class`	`ByteArrayClassLoader.SingletonEnumeration`	An enumeration that contains a single element.
`protected static interface`	`ByteArrayClassLoader.SynchronizationStrategy`	An engine for receiving a class loading lock when loading a class.

Nested classes/interfaces inherited from class net.bytebuddy.dynamic.loading.InjectionClassLoader
InjectionClassLoader.Strategy

Field Summary

Fields
Modifier and Type	Field	Description
`protected java.lang.Object`	`accessControlContext`	The access control context to use for loading classes or `null` if this is not supported on the current VM.
`protected ClassFilePostProcessor`	`classFilePostProcessor`	The class file transformer to apply on loaded classes.
`private static int`	`FROM_BEGINNING`	Indicates that an array should be included from its first index.
`private static java.net.URL`	`NO_URL`	Indicates that a URL does not exist to improve code readability.
`private static ByteArrayClassLoader.PackageLookupStrategy`	`PACKAGE_LOOKUP_STRATEGY`	A strategy for locating a package by name.
`protected PackageDefinitionStrategy`	`packageDefinitionStrategy`	The package definer to be queried for package definitions.
`protected ByteArrayClassLoader.PersistenceHandler`	`persistenceHandler`	The persistence handler of this class loader.
`protected java.security.ProtectionDomain`	`protectionDomain`	The protection domain to apply.
`protected static ByteArrayClassLoader.SynchronizationStrategy.Initializable`	`SYNCHRONIZATION_STRATEGY`	The synchronization engine for the executing JVM.
`protected java.util.concurrent.ConcurrentMap<java.lang.String,byte[]>`	`typeDefinitions`	A mutable map of type names mapped to their binary representation.
`static java.lang.String`	`URL_SCHEMA`	The schema for URLs that represent a class file of byte array class loaders.

Constructor Summary

Constructors
Constructor	Description
`ByteArrayClassLoader(java.lang.ClassLoader parent, boolean sealed, java.util.Map<java.lang.String,byte[]> typeDefinitions)`	Creates a new class loader for a given definition of classes.
`ByteArrayClassLoader(java.lang.ClassLoader parent, boolean sealed, java.util.Map<java.lang.String,byte[]> typeDefinitions, java.security.ProtectionDomain protectionDomain, ByteArrayClassLoader.PersistenceHandler persistenceHandler, PackageDefinitionStrategy packageDefinitionStrategy)`	Creates a new class loader for a given definition of classes.
`ByteArrayClassLoader(java.lang.ClassLoader parent, boolean sealed, java.util.Map<java.lang.String,byte[]> typeDefinitions, java.security.ProtectionDomain protectionDomain, ByteArrayClassLoader.PersistenceHandler persistenceHandler, PackageDefinitionStrategy packageDefinitionStrategy, ClassFilePostProcessor classFilePostProcessor)`	Creates a new class loader for a given definition of classes.
`ByteArrayClassLoader(java.lang.ClassLoader parent, boolean sealed, java.util.Map<java.lang.String,byte[]> typeDefinitions, ByteArrayClassLoader.PersistenceHandler persistenceHandler)`	Creates a new class loader for a given definition of classes.
`ByteArrayClassLoader(java.lang.ClassLoader parent, java.util.Map<java.lang.String,byte[]> typeDefinitions)`	Creates a new class loader for a given definition of classes.
`ByteArrayClassLoader(java.lang.ClassLoader parent, java.util.Map<java.lang.String,byte[]> typeDefinitions, java.security.ProtectionDomain protectionDomain, ByteArrayClassLoader.PersistenceHandler persistenceHandler, PackageDefinitionStrategy packageDefinitionStrategy)`	Creates a new class loader for a given definition of classes.
`ByteArrayClassLoader(java.lang.ClassLoader parent, java.util.Map<java.lang.String,byte[]> typeDefinitions, java.security.ProtectionDomain protectionDomain, ByteArrayClassLoader.PersistenceHandler persistenceHandler, PackageDefinitionStrategy packageDefinitionStrategy, ClassFilePostProcessor classFilePostProcessor)`	Creates a new class loader for a given definition of classes.
`ByteArrayClassLoader(java.lang.ClassLoader parent, java.util.Map<java.lang.String,byte[]> typeDefinitions, ByteArrayClassLoader.PersistenceHandler persistenceHandler)`	Creates a new class loader for a given definition of classes.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected java.util.Map<java.lang.String,java.lang.Class<?>>`	`doDefineClasses(java.util.Map<java.lang.String,byte[]> typeDefinitions)`	Defines a group of types to be loaded by this class loader.
`private java.lang.Package`	`doGetPackage(java.lang.String name)`	Returns the package for a given name.
`private static <T> T`	`doPrivileged(java.security.PrivilegedAction<T> action)`	A proxy for `java.security.AccessController#doPrivileged` that is activated if available.
`private static <T> T`	`doPrivileged(java.security.PrivilegedAction<T> action, java.lang.Object context)`	A proxy for `java.security.AccessController#doPrivileged` that is activated if available.
`private static void`	`doRegisterAsParallelCapable()`	Registers class loader as parallel capable if possible.
`protected java.lang.Class<?>`	`findClass(java.lang.String name)`
`protected java.net.URL`	`findResource(java.lang.String name)`
`protected java.util.Enumeration<java.net.URL>`	`findResources(java.lang.String name)`
`private static java.lang.Object`	`getContext()`	A proxy for `java.security.AccessController#getContext` that is activated if available.
`static java.util.Map<TypeDescription,java.lang.Class<?>>`	`load(java.lang.ClassLoader classLoader, java.util.Map<TypeDescription,byte[]> types)`	Loads a given set of class descriptions and their binary representations.
`static java.util.Map<TypeDescription,java.lang.Class<?>>`	`load(java.lang.ClassLoader classLoader, java.util.Map<TypeDescription,byte[]> types, java.security.ProtectionDomain protectionDomain, ByteArrayClassLoader.PersistenceHandler persistenceHandler, PackageDefinitionStrategy packageDefinitionStrategy, boolean forbidExisting, boolean sealed)`	Loads a given set of class descriptions and their binary representations.
`static java.util.Map<TypeDescription,java.lang.Class<?>>`	`load(java.lang.ClassLoader classLoader, java.util.Map<TypeDescription,byte[]> types, java.security.ProtectionDomain protectionDomain, ByteArrayClassLoader.PersistenceHandler persistenceHandler, PackageDefinitionStrategy packageDefinitionStrategy, ClassLoaderDecorator.Factory classLoaderDecoratorFactory, boolean forbidExisting, boolean sealed)`	Loads a given set of class descriptions and their binary representations.
`private static java.lang.Object`	`methodHandle()`	Resolves a method handle in the scope of the `ByteArrayClassLoader` class.

Methods inherited from class net.bytebuddy.dynamic.loading.InjectionClassLoader
defineClass, defineClasses, isSealed, seal

Methods inherited from class java.lang.ClassLoader
clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, loadClass, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- URL_SCHEMA
```
public static final java.lang.String URL_SCHEMA
```
  The schema for URLs that represent a class file of byte array class loaders.
  
  See Also:
  
  Constant Field Values
- FROM_BEGINNING
```
private static final int FROM_BEGINNING
```
  Indicates that an array should be included from its first index. Improves the source code readability.
  
  See Also:
  
  Constant Field Values
- NO_URL
```
@AlwaysNull
private static final java.net.URL NO_URL
```
  Indicates that a URL does not exist to improve code readability.
- PACKAGE_LOOKUP_STRATEGY
```
private static final ByteArrayClassLoader.PackageLookupStrategy PACKAGE_LOOKUP_STRATEGY
```
  A strategy for locating a package by name.
- SYNCHRONIZATION_STRATEGY
```
protected static final ByteArrayClassLoader.SynchronizationStrategy.Initializable SYNCHRONIZATION_STRATEGY
```
  The synchronization engine for the executing JVM.
- typeDefinitions
```
protected final java.util.concurrent.ConcurrentMap<java.lang.String,byte[]> typeDefinitions
```
  A mutable map of type names mapped to their binary representation.
- persistenceHandler
```
protected final ByteArrayClassLoader.PersistenceHandler persistenceHandler
```
  The persistence handler of this class loader.
- protectionDomain
```
@MaybeNull
protected final java.security.ProtectionDomain protectionDomain
```
  The protection domain to apply. Might be null when referencing the default protection domain.
- packageDefinitionStrategy
```
protected final PackageDefinitionStrategy packageDefinitionStrategy
```
  The package definer to be queried for package definitions.
- classFilePostProcessor
```
protected final ClassFilePostProcessor classFilePostProcessor
```
  The class file transformer to apply on loaded classes.
- accessControlContext
```
@MaybeNull
protected final java.lang.Object accessControlContext
```
  The access control context to use for loading classes or null if this is not supported on the current VM.

Constructor Detail

ByteArrayClassLoader
```
public ByteArrayClassLoader(@MaybeNull
                            java.lang.ClassLoader parent,
                            java.util.Map<java.lang.String,byte[]> typeDefinitions)
```
Creates a new class loader for a given definition of classes.

Parameters:

parent - The ClassLoader that is the parent of this class loader.

typeDefinitions - A map of fully qualified class names pointing to their binary representations.

ByteArrayClassLoader
```
public ByteArrayClassLoader(@MaybeNull
                            java.lang.ClassLoader parent,
                            boolean sealed,
                            java.util.Map<java.lang.String,byte[]> typeDefinitions)
```
Creates a new class loader for a given definition of classes.

Parameters:

parent - The ClassLoader that is the parent of this class loader.

sealed - true if this class loader is sealed.

typeDefinitions - A map of fully qualified class names pointing to their binary representations.