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jdk.jfr.internal.tracing

pack-priv final Class Instrumentation

Class Inheritance

extends Object

java.lang.Object
jdk.jfr.internal.tracing.Instrumentation

Imports

java.lang.classfile.ClassBuilder, .ClassElement, .ClassFile, .ClassFile.ClassHierarchyResolverOption, .ClassFile.Option, .ClassHierarchyResolver, .ClassModel, .MethodModel, .MethodTransform, java.util.ArrayList, .LinkedHashMap, .List, .Map, jdk.jfr.internal.LogLevel, .LogTag, .Logger

Class that adds bytecode instrumentation for a class.

Field Summary

Modifier and Type	Field and Description
private final byte[]	bytecode
private final ClassLoader	classLoader
private final String	className
private final Map<String, Method>	modificationMap

Constructor Summary

Access	Constructor and Description
public	Instrumentation(ClassLoader classLoader, String internalClassName, byte[] bytecode)

Method Summary

Modifier and Type	Method and Description
public void	addMethod(long methodId, String name, String signature, int modification)
public byte[]	generateBytecode()
public List<Method>	getMethods()
private boolean	modifyClassElement(ClassModel classModel, ClassBuilder classBuilder, ClassElement ce)
private boolean	modifyMethod(ClassModel classModel, ClassBuilder classBuilder, MethodModel methodModel, Method method)
private ClassHierarchyResolver	resolver()
private ClassFile.Option	resolverOption()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

bytecode	back to summary
private final byte[] bytecode

classLoader	back to summary
private final ClassLoader classLoader

className	back to summary
private final String className

modificationMap	back to summary
private final Map<String, Method> modificationMap

Constructor Detail

Instrumentation	back to summary
public Instrumentation(ClassLoader classLoader, String internalClassName, byte[] bytecode)

Method Detail

addMethod	back to summary
public void addMethod(long methodId, String name, String signature, int modification)

generateBytecode	back to summary
public byte[] generateBytecode()

getMethods	back to summary
public List<Method> getMethods()

modifyClassElement	back to summary
private boolean modifyClassElement(ClassModel classModel, ClassBuilder classBuilder, ClassElement ce)

modifyMethod	back to summary
private boolean modifyMethod(ClassModel classModel, ClassBuilder classBuilder, MethodModel methodModel, Method method)

resolver	back to summary
private ClassHierarchyResolver resolver()

resolverOption	back to summary
private ClassFile.Option resolverOption()