net.bytebuddy.benchmark

Class ClassByExtensionBenchmark

java.lang.Object

net.bytebuddy.benchmark.ClassByExtensionBenchmark

public class ClassByExtensionBenchmark
extends Object

This benchmark dynamically creates a subclass of ExampleClass which overrides all methods to invoke the direct super class's implementation. The benchmark furthermore creates an instance of this class since some code generation frameworks rely on this property. Because this benchmark requires the creation of a subclass, the JDK proxy is not included in this benchmark.

Note that this class defines all values that are accessed by benchmark methods as instance fields. This way, the JIT compiler's capability of constant folding is limited in order to produce more comparable test results.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ClassByExtensionBenchmark.ByteBuddyInterceptor Instead of using the SuperMethodCall instrumentation, we are using a delegate in order to emulate the interception approach of other instrumentation libraries.

Field Summary

Fields

Modifier and Type	Field and Description
static Class<? extends ExampleClass>	BASE_CLASS The base class to be subclassed in all benchmarks.

Constructor Summary

Constructors

Constructor and Description
ClassByExtensionBenchmark()

Method Summary

Modifier and Type	Method and Description
ExampleClass	benchmarkByteBuddySpecialized() Performs a benchmark of a class extension using Byte Buddy.
ExampleClass	benchmarkByteBuddyWithAnnotations() Performs a benchmark of a class extension using Byte Buddy.
ExampleClass	benchmarkCglib() Performs a benchmark of a class extension using cglib.
ExampleClass	benchmarkJavassist() Performs a benchmark of a class extension using javassist proxies.

Methods inherited from class java.lang.Object

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

Field Detail

BASE_CLASS

public static final Class<? extends ExampleClass> BASE_CLASS

The base class to be subclassed in all benchmarks.

Constructor Detail

ClassByExtensionBenchmark

public ClassByExtensionBenchmark()

Method Detail

benchmarkByteBuddyWithAnnotations

public ExampleClass benchmarkByteBuddyWithAnnotations()
                                               throws Exception

Performs a benchmark of a class extension using Byte Buddy. This benchmark uses an annotation-based approach which is by its reflective nature more difficult to optimize by the JIT compiler.

Returns:

The created instance, in order to avoid JIT removal.

Throws:

Exception - If the reflective invocation causes an exception.

benchmarkByteBuddySpecialized

public ExampleClass benchmarkByteBuddySpecialized()
                                           throws Exception

Performs a benchmark of a class extension using Byte Buddy. This benchmark uses a specialized interception strategy which is easier to inline by the compiler.

Returns:

The created instance, in order to avoid JIT removal.

Throws:

Exception - If the reflective invocation causes an exception.

benchmarkCglib

public ExampleClass benchmarkCglib()

Performs a benchmark of a class extension using cglib.

Returns:

The created instance, in order to avoid JIT removal.

benchmarkJavassist

public ExampleClass benchmarkJavassist()
                                throws Exception

Performs a benchmark of a class extension using javassist proxies.

Returns:

The created instance, in order to avoid JIT removal.

Throws:

Exception - If the reflective invocation causes an exception.