interface java.util.ResourceBundle$CacheKeyReference
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: java.util.ResourceBundle$CacheKeyReference
  super_class: java.lang.Object
{
  public abstract java.util.ResourceBundle$CacheKey getCacheKey();
    descriptor: ()Ljava/util/ResourceBundle$CacheKey;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "ResourceBundle.java"
NestHost: java.util.ResourceBundle
InnerClasses:
  private final CacheKey = java.util.ResourceBundle$CacheKey of java.util.ResourceBundle
  private abstract CacheKeyReference = java.util.ResourceBundle$CacheKeyReference of java.util.ResourceBundle