ByteCodeUtils.java

import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.util.TraceClassVisitor;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;

import static org.objectweb.asm.Opcodes.ASM9;

/**
 * Created on December, 2020
 *
 * @author destan
 */
public class ByteCodeUtils {

	private ByteCodeUtils() {
	}

	public static String toReadableByteCode(byte[] content) {
		final Writer writer = new StringWriter();
		new ClassReader(content).accept(new VisitAdapter(writer), 0);
		return writer.toString();
	}

	private static class VisitAdapter extends ClassVisitor {

		public VisitAdapter(Writer writer) {
			super(ASM9, new TraceClassVisitor(null, new PrintWriter(writer)));
		}
	}
}