http://ehcache.org: The Core module of Ehcache 3 (Terracotta Inc., a wholly-owned subsidiary of Software AG USA, Inc.) 
public interface org.ehcache.core.spi.service.FileBasedPersistenceContext
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.ehcache.core.spi.service.FileBasedPersistenceContext
  super_class: java.lang.Object
{
  public abstract java.io.File getDirectory();
    descriptor: ()Ljava/io/File;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "FileBasedPersistenceContext.java"