https://openjdk.java.net/ 
public interface jdk.internal.foreign.abi.Architecture
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: jdk.internal.foreign.abi.Architecture
  super_class: java.lang.Object
{
  public abstract boolean isStackType(int);
    descriptor: (I)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      cls   

  public abstract int typeSize(int);
    descriptor: (I)I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      cls   

  public abstract int stackType();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "Architecture.java"