raphw

class HashCode {
    public static void main(String[] args) {
        Object object = new Object();
        printHash(object.hashCode());
        Field field = Unsafe.class.getDeclaredField("theUnsafe");
        field.setAccessible(true);
        Unsafe unsafe = (Unsafe) field.get(null);
        long hashCode = 0;
        for (long index = 7; index > 0; index--) { // First byte is not part of the hash code
            hashCode |= (unsafe.getByte(object, index) & 0x00FF) << ((index - 1) * 8);

raphw

import java.lang.annotation.*;

public class ManifestAnnotation implements SampleAnnotation {

  private final String value;
  
  public ManifestAnnotation(String value) {
    this.value = value;
  }

raphw

package benchmark;

import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.OptionsBuilder;

import java.util.concurrent.TimeUnit;

@State(Scope.Group)

raphw

package benchmark;

import org.openjdk.jmh.annotations.*;

import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.util.concurrent.TimeUnit;

raphw

public class TypeSafeJPA {

    class MyBean {

        private String foo;

        private int bar;

        public String getFoo() {
            return foo;

raphw

import org.objectweb.asm.Opcodes;

import java.lang.reflect.Array;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;
import java.util.List;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;

raphw

public class Java8Rule implements MethodRule {

  private final boolean java8OrHigher;

  public Java8Rule() {
    java8OrHigher = currentByteCodeLevel() >= (0 << 16 | 52);
  }

  @Override
  public Statement apply(Statement base, FrameworkMethod method, Object target) {

raphw

import org.junit.Test;

import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;

raphw

public class MethodDescriptor {

    public static final char OBJECT_REFERENCE_SYMBOL = 'L';
    public static final char ARRAY_REFERENCE_SYMBOL = '[';
    public static final char DOUBLE_SYMBOL = 'D';
    public static final char LONG_SYMBOL = 'J';
    public static final char BOOLEAN_SYMBOL = 'Z';
    public static final char BYTE_SYMBOL = 'B';
    public static final char SHORT_SYMBOL = 'S';
    public static final char CHAR_SYMBOL = 'C';

raphw

import org.junit.Before;
import org.junit.Test;
import sun.misc.Unsafe;
import sun.reflect.ReflectionFactory;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

import static org.junit.Assert.assertEquals;