http://ehcache.org: The implementation module of Ehcache 3 (Terracotta Inc., a wholly-owned subsidiary of Software AG USA, Inc.) 
public interface org.ehcache.impl.internal.store.heap.holders.OnHeapKey<K>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.ehcache.impl.internal.store.heap.holders.OnHeapKey
  super_class: java.lang.Object
{
  public abstract K getActualKeyObject();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()TK;
}
Signature: <K:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "OnHeapKey.java"