hello asm

Main.java

package com.mergeconflict.outclass;

import static org.objectweb.asm.Opcodes.ACC_PUBLIC;
import static org.objectweb.asm.Opcodes.ACC_STATIC;
import static org.objectweb.asm.Opcodes.GETSTATIC;
import static org.objectweb.asm.Opcodes.RETURN;
import static org.objectweb.asm.Opcodes.*;

import java.io.FileOutputStream;
import java.io.IOException;

import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.MethodVisitor;

public class Main {

	public static void main(String[] args) throws IOException {
		ClassWriter c = new ClassWriter(0);
		c.visit(V1_7, ACC_PUBLIC, "hello/Hello", null, "java/lang/Object", null);
		MethodVisitor m = c.visitMethod(ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null);
		m.visitCode();
		m.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
		m.visitLdcInsn("Hello, World!");
		m.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
		m.visitInsn(RETURN);
		m.visitMaxs(2, 1);
		m.visitEnd();
		c.visitEnd();
		try (FileOutputStream f = new FileOutputStream("target/hello/Hello.class")) {
			f.write(c.toByteArray());
		}
	}

}