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.loaderwriter.writebehind.operations.KeyBasedOperation<K>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.ehcache.impl.internal.loaderwriter.writebehind.operations.KeyBasedOperation
  super_class: java.lang.Object
{
  public abstract K getKey();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()TK;

  public abstract long getCreationTime();
    descriptor: ()J
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
Signature: <K:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "KeyBasedOperation.java"