https://openjdk.java.net/ 
public interface sun.jvm.hotspot.runtime.JavaThreadFactory
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: sun.jvm.hotspot.runtime.JavaThreadFactory
  super_class: java.lang.Object
{
  public abstract sun.jvm.hotspot.runtime.JavaThread createJavaThreadWrapper(sun.jvm.hotspot.debugger.Address, sun.jvm.hotspot.types.TypeDataBase);
    descriptor: (Lsun/jvm/hotspot/debugger/Address;Lsun/jvm/hotspot/types/TypeDataBase;)Lsun/jvm/hotspot/runtime/JavaThread;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
                   Name  Flags
      realThreadObjAddr  
      db                 
}
SourceFile: "JavaThreadFactory.java"