https://openjdk.java.net/ 
public interface sun.jvm.hotspot.compiler.OopMapVisitor
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: sun.jvm.hotspot.compiler.OopMapVisitor
  super_class: java.lang.Object
{
  public abstract void visitOopLocation(sun.jvm.hotspot.debugger.Address);
    descriptor: (Lsun/jvm/hotspot/debugger/Address;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
         Name  Flags
      oopAddr  

  public abstract void visitDerivedOopLocation(sun.jvm.hotspot.debugger.Address, sun.jvm.hotspot.debugger.Address);
    descriptor: (Lsun/jvm/hotspot/debugger/Address;Lsun/jvm/hotspot/debugger/Address;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
                Name  Flags
      baseOopAddr     
      derivedOopAddr  

  public abstract void visitNarrowOopLocation(sun.jvm.hotspot.debugger.Address);
    descriptor: (Lsun/jvm/hotspot/debugger/Address;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
               Name  Flags
      narrowOopAddr  
}
SourceFile: "OopMapVisitor.java"