org.springsource.loaded.support

Class Java8

java.lang.Object

org.springsource.loaded.support.Java8

public class Java8
extends java.lang.Object

This class encapsulates dependencies on Java 8 APIs (e.g. LambdaMetafactory).

Since:

1.2

Constructor Summary

Constructors

Constructor and Description
Java8()

Method Summary

Modifier and Type	Method and Description
static java.lang.invoke.CallSite	callLambdaMetaFactory(java.lang.Object[] bsmArgs, java.lang.Object lookup, java.lang.String indyNameAndDescriptor, java.lang.Class<?> executorClass)
static java.lang.Object	emulateInvokeDynamic(java.lang.Class<?> executorClass, org.objectweb.asm.Handle handle, java.lang.Object[] bsmArgs, java.lang.Object lookup, java.lang.String indyNameAndDescriptor, java.lang.Object[] indyParams) Programmatic emulation of INVOKEDYNAMIC so initialize the callsite via use of the bootstrap method then invoke the result.
static byte[]	enhanceInnerClassLambdaMetaFactory(byte[] bytes) The metafactory we are enhancing is responsible for generating the anonymous classes that will call the lambda methods in our type

Methods inherited from class java.lang.Object

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

Constructor Detail

Java8

public Java8()

Method Detail

emulateInvokeDynamic

public static java.lang.Object emulateInvokeDynamic(java.lang.Class<?> executorClass,
                                                    org.objectweb.asm.Handle handle,
                                                    java.lang.Object[] bsmArgs,
                                                    java.lang.Object lookup,
                                                    java.lang.String indyNameAndDescriptor,
                                                    java.lang.Object[] indyParams)

Programmatic emulation of INVOKEDYNAMIC so initialize the callsite via use of the bootstrap method then invoke the result.

Parameters:

executorClass - the executor that will contain the lambda function, null if not yet reloaded

handle - bootstrap method handle

bsmArgs - bootstrap method arguments

lookup - The MethodHandles.Lookup object that can be used to find types

indyNameAndDescriptor - Method name and descriptor at invokedynamic site

indyParams - parameters when the invokedynamic call is made

Returns:

the result of the invokedynamic call

callLambdaMetaFactory

public static java.lang.invoke.CallSite callLambdaMetaFactory(java.lang.Object[] bsmArgs,
                                                              java.lang.Object lookup,
                                                              java.lang.String indyNameAndDescriptor,
                                                              java.lang.Class<?> executorClass)
                                                       throws java.lang.Exception

Throws:

java.lang.Exception

enhanceInnerClassLambdaMetaFactory

public static byte[] enhanceInnerClassLambdaMetaFactory(byte[] bytes)

The metafactory we are enhancing is responsible for generating the anonymous classes that will call the lambda methods in our type

Parameters:

bytes - the class bytes for the InnerClassLambdaMetaFactory that is going to be modified

Returns:

the class bytes for the modified InnerClassLambdaMetaFactory