Class BootstrapMethodsUtil

java.lang.Object

edu.umd.cs.findbugs.util.BootstrapMethodsUtil

public class BootstrapMethodsUtil
extends Object

Utility methods for working with bootstrap methods

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	LAMBDA_METHOD_PREFIX

Constructor Summary

Constructors

Constructor	Description
BootstrapMethodsUtil()

Method Summary

Modifier and Type	Method	Description
private static org.apache.bcel.classfile.BootstrapMethod	findBootstrapMethod(org.apache.bcel.classfile.JavaClass cls, int index)
private static List<MethodAnnotation>	getDirectlyReferencedLambdas(org.apache.bcel.classfile.JavaClass cls, org.apache.bcel.classfile.Method method)
static List<MethodDescriptor>	getInvokedMethodTargets(org.apache.bcel.classfile.JavaClass cls, int bootstrapIndex, org.apache.bcel.classfile.ConstantPool cp)	Returns the methods invoked by handle arguments of a bootstrap method from a Java class.
static Set<MethodAnnotation>	getLambdasOwnedBy(org.apache.bcel.classfile.JavaClass cls, org.apache.bcel.classfile.Method method)	Returns the lambda methods belonging to the given method (including nested ones).
static Optional<org.apache.bcel.classfile.Method>	getMethodFromBootstrap(org.apache.bcel.classfile.BootstrapMethods bms, int index, org.apache.bcel.classfile.ConstantPool cp, org.apache.bcel.classfile.JavaClass cls)	Returns the method representation of a bootstrap method from a Java class.

Methods inherited from class Object

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

Field Details

LAMBDA_METHOD_PREFIX

private static final String LAMBDA_METHOD_PREFIX

See Also:

• Constant Field Values

Constructor Details

BootstrapMethodsUtil

public BootstrapMethodsUtil()

Method Details

getInvokedMethodTargets

public static List<MethodDescriptor> getInvokedMethodTargets(org.apache.bcel.classfile.JavaClass cls,
 int bootstrapIndex,
 org.apache.bcel.classfile.ConstantPool cp)

Returns the methods invoked by handle arguments of a bootstrap method from a Java class.

Parameters:

cls - the java class whose bootstrap method attribute is consulted

bootstrapIndex - the index of the bootstrap method

cp - the constant pool of the java class

Returns:

the invoked methods if found, an empty list otherwise

findBootstrapMethod

private static org.apache.bcel.classfile.BootstrapMethod findBootstrapMethod(org.apache.bcel.classfile.JavaClass cls,
 int index)

getMethodFromBootstrap

public static Optional<org.apache.bcel.classfile.Method> getMethodFromBootstrap(org.apache.bcel.classfile.BootstrapMethods bms,
 int index,
 org.apache.bcel.classfile.ConstantPool cp,
 org.apache.bcel.classfile.JavaClass cls)

Returns the method representation of a bootstrap method from a Java class.

Parameters:

bms - the BootstrapMethods attribute of a java class

index - the index of the bootstrap method

cp - the constant pool of the java class

cls - the java class itself

Returns:

the bootstrap method represented as Method if found, Optional.empty() otherwise

getLambdasOwnedBy

public static Set<MethodAnnotation> getLambdasOwnedBy(org.apache.bcel.classfile.JavaClass cls,
 org.apache.bcel.classfile.Method method)

Returns the lambda methods belonging to the given method (including nested ones).

Parameters:

cls - the java class containing the method

method - the method whose lambdas to find

Returns:

the lambda methods if found, an empty set otherwise

getDirectlyReferencedLambdas

private static List<MethodAnnotation> getDirectlyReferencedLambdas(org.apache.bcel.classfile.JavaClass cls,
 org.apache.bcel.classfile.Method method)