Uses of Class
java.lang.invoke.MethodHandles.Lookup
Packages that use MethodHandles.Lookup
Package
Description
Provides classes that are fundamental to the design of the Java
programming language.
Provides classfile parsing, generation, and transformation library.
Classes and interfaces to represent nominal descriptors for run-time
entities such as classes or method handles, and classfile entities such as
constant pool entries or
invokedynamic call sites.The
java.lang.invoke package provides low-level primitives for interacting
with the Java Virtual Machine.The
java.lang.runtime package provides low-level runtime support
for the Java language.Contains interfaces and classes that are used to link an
invokedynamic call site.
Contains interfaces and classes needed by language runtimes to implement
their own language-specific object models and type conversions.
Contains classes that make it more convenient for language runtimes to
implement their own language-specific object models and type conversions
by providing basic implementations of some classes as well as various
utilities.
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Uses of MethodHandles.Lookup in java.lang
Methods in java.lang with parameters of type MethodHandles.LookupModifier and TypeMethodDescriptionDouble.resolveConstantDesc(MethodHandles.Lookup lookup) Resolves this instance as aConstantDesc, the result of which is the instance itself.Float.resolveConstantDesc(MethodHandles.Lookup lookup) Resolves this instance as aConstantDesc, the result of which is the instance itself.Integer.resolveConstantDesc(MethodHandles.Lookup lookup) Resolves this instance as aConstantDesc, the result of which is the instance itself.Long.resolveConstantDesc(MethodHandles.Lookup lookup) Resolves this instance as aConstantDesc, the result of which is the instance itself.String.resolveConstantDesc(MethodHandles.Lookup lookup) Resolves this instance as aConstantDesc, the result of which is the instance itself. -
Uses of MethodHandles.Lookup in java.lang.classfile
Methods in java.lang.classfile with parameters of type MethodHandles.LookupModifier and TypeMethodDescriptionstatic ClassHierarchyResolverClassHierarchyResolver.ofClassLoading(MethodHandles.Lookup lookup) Returns aClassHierarchyResolverthat extracts class hierarchy information via classes accessible to aMethodHandles.Lookupwith reflection. -
Uses of MethodHandles.Lookup in java.lang.constant
Methods in java.lang.constant with parameters of type MethodHandles.LookupModifier and TypeMethodDescriptionDynamicCallSiteDesc.resolveCallSiteDesc(MethodHandles.Lookup lookup) Reflectively invokes the bootstrap method with the specified arguments, and return the resultingCallSiteClass<?> ClassDesc.resolveConstantDesc(MethodHandles.Lookup lookup) ConstantDesc.resolveConstantDesc(MethodHandles.Lookup lookup) DynamicConstantDesc.resolveConstantDesc(MethodHandles.Lookup lookup) MethodHandleDesc.resolveConstantDesc(MethodHandles.Lookup lookup) MethodTypeDesc.resolveConstantDesc(MethodHandles.Lookup lookup) -
Uses of MethodHandles.Lookup in java.lang.invoke
Methods in java.lang.invoke that return MethodHandles.LookupModifier and TypeMethodDescriptionMethodHandles.Lookup.defineHiddenClass(byte[] bytes, boolean initialize, MethodHandles.Lookup.ClassOption... options) Creates a hidden class or interface frombytes, returning aLookupon the newly created class or interface.MethodHandles.Lookup.defineHiddenClassWithClassData(byte[] bytes, Object classData, boolean initialize, MethodHandles.Lookup.ClassOption... options) Creates a hidden class or interface frombyteswith associated class data, returning aLookupon the newly created class or interface.MethodHandles.Lookup.dropLookupMode(int modeToDrop) Creates a lookup on the same lookup class which this lookup object finds members, but with a lookup mode that has lost the given lookup mode.Creates a lookup on the specified new lookup class.static MethodHandles.LookupMethodHandles.lookup()Returns alookup objectwith full capabilities to emulate all supported bytecode behaviors of the caller.static MethodHandles.LookupMethodHandles.privateLookupIn(Class<?> targetClass, MethodHandles.Lookup caller) Returns alookupobject on a target class to emulate all supported bytecode behaviors, including private access.static MethodHandles.LookupMethodHandles.publicLookup()Returns alookup objectwhich is trusted minimally.Methods in java.lang.invoke with parameters of type MethodHandles.LookupModifier and TypeMethodDescriptionstatic CallSiteLambdaMetafactory.altMetafactory(MethodHandles.Lookup caller, String interfaceMethodName, MethodType factoryType, Object... args) Facilitates the creation of simple "function objects" that implement one or more interfaces by delegation to a providedMethodHandle, after appropriate type adaptation and partial evaluation of arguments.static VarHandleConstantBootstraps.arrayVarHandle(MethodHandles.Lookup lookup, String name, Class<VarHandle> type, Class<?> arrayClass) Finds aVarHandlefor an array type.static <T> TMethodHandles.classData(MethodHandles.Lookup caller, String name, Class<T> type) Returns the class data associated with the lookup class of the givencallerlookup object, ornull.static <T> TMethodHandles.classDataAt(MethodHandles.Lookup caller, String name, Class<T> type, int index) Returns the element at the specified index in the class data, if the class data associated with the lookup class of the givencallerlookup object is aList.static <E extends Enum<E>>
EConstantBootstraps.enumConstant(MethodHandles.Lookup lookup, String name, Class<E> type) Returns anenumconstant of the type specified bytypewith the name specified byname.static ObjectConstantBootstraps.explicitCast(MethodHandles.Lookup lookup, String name, Class<?> dstType, Object value) Applies a conversion from a source type to a destination type.static VarHandleConstantBootstraps.fieldVarHandle(MethodHandles.Lookup lookup, String name, Class<VarHandle> type, Class<?> declaringClass, Class<?> fieldType) Finds aVarHandlefor an instance field.static ObjectConstantBootstraps.getStaticFinal(MethodHandles.Lookup lookup, String name, Class<?> type) Returns the value of a static final field declared in the class which is the same as the field's type (or, for primitive-valued fields, declared in the wrapper class.)static ObjectConstantBootstraps.getStaticFinal(MethodHandles.Lookup lookup, String name, Class<?> type, Class<?> declaringClass) Returns the value of a static final field.static ObjectConstantBootstraps.invoke(MethodHandles.Lookup lookup, String name, Class<?> type, MethodHandle handle, Object... args) Returns the result of invoking a method handle with the provided arguments.static CallSiteStringConcatFactory.makeConcat(MethodHandles.Lookup lookup, String name, MethodType concatType) Facilitates the creation of optimized String concatenation methods, that can be used to efficiently concatenate a known number of arguments of known types, possibly after type adaptation and partial evaluation of arguments.static CallSiteStringConcatFactory.makeConcatWithConstants(MethodHandles.Lookup lookup, String name, MethodType concatType, String recipe, Object... constants) Facilitates the creation of optimized String concatenation methods, that can be used to efficiently concatenate a known number of arguments of known types, possibly after type adaptation and partial evaluation of arguments.static CallSiteLambdaMetafactory.metafactory(MethodHandles.Lookup caller, String interfaceMethodName, MethodType factoryType, MethodType interfaceMethodType, MethodHandle implementation, MethodType dynamicMethodType) Facilitates the creation of simple "function objects" that implement one or more interfaces by delegation to a providedMethodHandle, after appropriate type adaptation and partial evaluation of arguments.static ObjectConstantBootstraps.nullConstant(MethodHandles.Lookup lookup, String name, Class<?> type) Returns anullobject reference for the reference type specified bytype.static Class<?> ConstantBootstraps.primitiveClass(MethodHandles.Lookup lookup, String name, Class<?> type) Returns aClassmirror for the primitive type whose type descriptor is specified byname.static MethodHandles.LookupMethodHandles.privateLookupIn(Class<?> targetClass, MethodHandles.Lookup caller) Returns alookupobject on a target class to emulate all supported bytecode behaviors, including private access.<T extends Member>
TMethodHandleInfo.reflectAs(Class<T> expected, MethodHandles.Lookup lookup) Reflects the underlying member as a method, constructor, or field object.static VarHandleConstantBootstraps.staticFieldVarHandle(MethodHandles.Lookup lookup, String name, Class<VarHandle> type, Class<?> declaringClass, Class<?> fieldType) Finds aVarHandlefor a static field. -
Uses of MethodHandles.Lookup in java.lang.runtime
Methods in java.lang.runtime with parameters of type MethodHandles.LookupModifier and TypeMethodDescriptionstatic ObjectObjectMethods.bootstrap(MethodHandles.Lookup lookup, String methodName, TypeDescriptor type, Class<?> recordClass, String names, MethodHandle... getters) Bootstrap method to generate theObject.equals(Object),Object.hashCode(), andObject.toString()methods, based on a description of the component names and accessor methods, for eitherinvokedynamiccall sites or dynamic constant pool entries.static CallSiteSwitchBootstraps.enumSwitch(MethodHandles.Lookup lookup, String invocationName, MethodType invocationType, Object... labels) Bootstrap method for linking aninvokedynamiccall site that implements aswitchon a target of an enum type.static CallSiteSwitchBootstraps.typeSwitch(MethodHandles.Lookup lookup, String invocationName, MethodType invocationType, Object... labels) Bootstrap method for linking aninvokedynamiccall site that implements aswitchon a target of a reference type. -
Uses of MethodHandles.Lookup in jdk.dynalink
Methods in jdk.dynalink that return MethodHandles.LookupModifier and TypeMethodDescriptionfinal MethodHandles.LookupSecureLookupSupplier.getLookup()Returns the lookup secured by thisSecureLookupSupplier.protected final MethodHandles.LookupSecureLookupSupplier.getLookupPrivileged()Returns the lookup secured by thisSecureLookupSupplier.Constructors in jdk.dynalink with parameters of type MethodHandles.LookupModifierConstructorDescriptionCallSiteDescriptor(MethodHandles.Lookup lookup, Operation operation, MethodType methodType) Creates a new call site descriptor.Creates a new secure lookup supplier for the given lookup. -
Uses of MethodHandles.Lookup in jdk.dynalink.linker
Method parameters in jdk.dynalink.linker with type arguments of type MethodHandles.LookupModifier and TypeMethodDescriptionGuardingTypeConverterFactory.convertToType(Class<?> sourceType, Class<?> targetType, Supplier<MethodHandles.Lookup> lookupSupplier) Returns a guarded type conversion that receives a value of the specified source type and returns a value converted to the specified target type. -
Uses of MethodHandles.Lookup in jdk.dynalink.linker.support
Methods in jdk.dynalink.linker.support with parameters of type MethodHandles.LookupModifier and TypeMethodDescriptionstatic MethodHandleLookup.findOwnSpecial(MethodHandles.Lookup lookup, String name, Class<?> rtype, Class<?>... ptypes) Given a lookup, finds usingLookup.findSpecial(Class, String, MethodType)a method on that lookup's class.static MethodHandleLookup.findOwnStatic(MethodHandles.Lookup lookup, String name, Class<?> rtype, Class<?>... ptypes) Given a lookup, finds usingLookup.findStatic(Class, String, MethodType)a method on that lookup's class.static MethodHandleLookup.unreflect(MethodHandles.Lookup lookup, Method m) Performs aunreflect(Method), converting any encounteredIllegalAccessExceptioninto anIllegalAccessError.static MethodHandleLookup.unreflectConstructor(MethodHandles.Lookup lookup, Constructor<?> c) Performs aunreflectConstructor(Constructor), converting any encounteredIllegalAccessExceptioninto anIllegalAccessError.Constructors in jdk.dynalink.linker.support with parameters of type MethodHandles.LookupModifierConstructorDescriptionLookup(MethodHandles.Lookup lookup) Creates a new instance, bound to an instance ofMethodHandles.Lookup.