https://openjdk.java.net/ 
public interface jdk.internal.vm.compiler.collections.MapCursor<K, V> extends jdk.internal.vm.compiler.collections.UnmodifiableMapCursor<K, V>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: jdk.internal.vm.compiler.collections.MapCursor
  super_class: java.lang.Object
{
  public abstract void remove();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Ljava/lang/Object;Ljdk/internal/vm/compiler/collections/UnmodifiableMapCursor<TK;TV;>;
SourceFile: "MapCursor.java"