http://bytebuddy.net/byte-buddy-agent: The Byte Buddy Java agent allows to access the JVM's HotSwap feature. 
public interface net.bytebuddy.agent.ByteBuddyAgent$AgentProvider
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: net.bytebuddy.agent.ByteBuddyAgent$AgentProvider
  super_class: java.lang.Object
{
  public abstract java.io.File resolve();
    descriptor: ()Ljava/io/File;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException
}
SourceFile: "ByteBuddyAgent.java"
NestHost: net.bytebuddy.agent.ByteBuddyAgent
InnerClasses:
  protected abstract AgentProvider = net.bytebuddy.agent.ByteBuddyAgent$AgentProvider of net.bytebuddy.agent.ByteBuddyAgent
  public final ForByteBuddyAgent = net.bytebuddy.agent.ByteBuddyAgent$AgentProvider$ForByteBuddyAgent of net.bytebuddy.agent.ByteBuddyAgent$AgentProvider
  public ForExistingAgent = net.bytebuddy.agent.ByteBuddyAgent$AgentProvider$ForExistingAgent of net.bytebuddy.agent.ByteBuddyAgent$AgentProvider