https://bytebuddy.net/byte-buddy-agent: The Byte Buddy agent offers convenience for attaching an agent to the local or a remote VM. 
public interface net.bytebuddy.agent.VirtualMachine$ForHotSpot$Connection$Response extends java.io.Closeable
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: net.bytebuddy.agent.VirtualMachine$ForHotSpot$Connection$Response
  super_class: java.lang.Object
{
  public abstract int read(byte[]);
    descriptor: ([B)I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      buffer  
}
SourceFile: "VirtualMachine.java"
NestHost: net.bytebuddy.agent.VirtualMachine
InnerClasses:
  public ForHotSpot = net.bytebuddy.agent.VirtualMachine$ForHotSpot of net.bytebuddy.agent.VirtualMachine
  public abstract Connection = net.bytebuddy.agent.VirtualMachine$ForHotSpot$Connection of net.bytebuddy.agent.VirtualMachine$ForHotSpot
  public abstract Response = net.bytebuddy.agent.VirtualMachine$ForHotSpot$Connection$Response of net.bytebuddy.agent.VirtualMachine$ForHotSpot$Connection