https://openjdk.java.net/ 
public interface jdk.internal.access.foreign.MemoryAddressProxy
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: jdk.internal.access.foreign.MemoryAddressProxy
  super_class: java.lang.Object
{
  public abstract void checkAccess(long, long, boolean);
    descriptor: (JJZ)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
          Name  Flags
      offset    
      length    
      readOnly  

  public abstract long unsafeGetOffset();
    descriptor: ()J
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.lang.Object unsafeGetBase();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "MemoryAddressProxy.java"