net.bytebuddy.dynamic.loading

Class ClassInjector.UsingUnsafe

java.lang.Object

net.bytebuddy.dynamic.loading.ClassInjector.AbstractBase

net.bytebuddy.dynamic.loading.ClassInjector.UsingUnsafe

All Implemented Interfaces:

ClassInjector

Enclosing interface:

ClassInjector

@HashCodeAndEqualsPlugin.Enhance
public static class ClassInjector.UsingUnsafe
extends ClassInjector.AbstractBase

A class injector that uses sun.misc.Unsafe or jdk.internal.misc.Unsafe to inject classes.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static interface	ClassInjector.UsingUnsafe.Dispatcher A dispatcher for using sun.misc.Unsafe or jdk.internal.misc.Unsafe.
static class	ClassInjector.UsingUnsafe.Factory A factory for creating a ClassInjector that uses sun.misc.Unsafe if available but attempts a fallback to using jdk.internal.misc.Unsafe if the jdk.internal module is not resolved or unavailable.
protected static interface	ClassInjector.UsingUnsafe.System A proxy of java.lang.System.

Nested classes/interfaces inherited from interface net.bytebuddy.dynamic.loading.ClassInjector

ClassInjector.AbstractBase, ClassInjector.UsingInstrumentation, ClassInjector.UsingJna, ClassInjector.UsingLookup, ClassInjector.UsingReflection, ClassInjector.UsingUnsafe

Field Summary

Fields

Modifier and Type	Field and Description
static String	SAFE_PROPERTY If this property is set, Byte Buddy does not make use of any Unsafe class.

Fields inherited from interface net.bytebuddy.dynamic.loading.ClassInjector

ALLOW_EXISTING_TYPES, SUPPRESS_ACCESS_CHECKS

Constructor Summary

Constructors

Modifier	Constructor and Description
	UsingUnsafe(ClassLoader classLoader) Creates a new unsafe injector for the given class loader with a default protection domain.
	UsingUnsafe(ClassLoader classLoader, ProtectionDomain protectionDomain) Creates a new unsafe injector for the given class loader with a default protection domain.
protected	UsingUnsafe(ClassLoader classLoader, ProtectionDomain protectionDomain, ClassInjector.UsingUnsafe.Dispatcher.Initializable dispatcher) Creates a new unsafe injector for the given class loader with a default protection domain.

Method Summary

Modifier and Type	Method and Description
Map<String,Class<?>>	injectRaw(Set<String> names, ClassFileLocator classFileLocator) Injects the given types into the represented class loader.
boolean	isAlive() Indicates if this class injector is available on the current VM.
static boolean	isAvailable() Checks if unsafe class injection is available on the current VM.
static ClassInjector	ofBootLoader() Returns an unsafe class injector for the boot class loader.
static ClassInjector	ofPlatformLoader() Returns an unsafe class injector for the platform class loader.
static ClassInjector	ofSystemLoader() Returns an unsafe class injector for the system class loader.

Methods inherited from class net.bytebuddy.dynamic.loading.ClassInjector.AbstractBase

inject, inject, injectRaw

Methods inherited from class java.lang.Object

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

Field Detail

SAFE_PROPERTY

public static final String SAFE_PROPERTY

If this property is set, Byte Buddy does not make use of any Unsafe class.

See Also:

Constant Field Values

Constructor Detail

UsingUnsafe

public UsingUnsafe(@MaybeNull
                   ClassLoader classLoader)

Creates a new unsafe injector for the given class loader with a default protection domain.

Parameters:

classLoader - The class loader to inject classes into or null for the bootstrap loader.

UsingUnsafe

public UsingUnsafe(@MaybeNull
                   ClassLoader classLoader,
                   @MaybeNull
                   ProtectionDomain protectionDomain)

Creates a new unsafe injector for the given class loader with a default protection domain.

Parameters:

classLoader - The class loader to inject classes into or null for the bootstrap loader.

protectionDomain - The protection domain to use or null for no protection domain.

UsingUnsafe

protected UsingUnsafe(@MaybeNull
                      ClassLoader classLoader,
                      @MaybeNull
                      ProtectionDomain protectionDomain,
                      ClassInjector.UsingUnsafe.Dispatcher.Initializable dispatcher)

Creates a new unsafe injector for the given class loader with a default protection domain.

Parameters:

classLoader - The class loader to inject classes into or null for the bootstrap loader.

protectionDomain - The protection domain to use or null for no protection domain.

dispatcher - The dispatcher to use.

Method Detail

isAlive

public boolean isAlive()

Indicates if this class injector is available on the current VM.

Returns:

true if this injector is available on the current VM.

injectRaw

public Map<String,Class<?>> injectRaw(Set<String> names,
                                      ClassFileLocator classFileLocator)

Injects the given types into the represented class loader.

Parameters:

names - The names of the types to load via injection.

classFileLocator - The class file locator to use for resolving binary representations.

Returns:

The loaded types that were passed as arguments.

isAvailable

public static boolean isAvailable()

Checks if unsafe class injection is available on the current VM.

Returns:

true if unsafe class injection is available on the current VM.

ofSystemLoader

public static ClassInjector ofSystemLoader()

Returns an unsafe class injector for the system class loader.

Returns:

A class injector for the system class loader.

ofPlatformLoader

public static ClassInjector ofPlatformLoader()

Returns an unsafe class injector for the platform class loader. For VMs of version 8 or older, the extension class loader is represented instead.

Returns:

A class injector for the platform class loader.

ofBootLoader

public static ClassInjector ofBootLoader()

Returns an unsafe class injector for the boot class loader.

Returns:

A class injector for the boot loader.