https://github.com/google/guava/guava: Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more. 
interface com.google.common.collect.FilteredMultimap<K, V> extends com.google.common.collect.Multimap<K, V>
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.google.common.collect.FilteredMultimap
  super_class: java.lang.Object
{
  public abstract com.google.common.collect.Multimap<K, V> unfiltered();
    descriptor: ()Lcom/google/common/collect/Multimap;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Lcom/google/common/collect/Multimap<TK;TV;>;

  public abstract com.google.common.base.Predicate<? super java.util.Map$Entry<K, V>> entryPredicate();
    descriptor: ()Lcom/google/common/base/Predicate;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Lcom/google/common/base/Predicate<-Ljava/util/Map$Entry<TK;TV;>;>;
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Ljava/lang/Object;Lcom/google/common/collect/Multimap<TK;TV;>;
SourceFile: "FilteredMultimap.java"
InnerClasses:
  public abstract Entry = java.util.Map$Entry of java.util.Map
    RuntimeInvisibleAnnotations: 
      com.google.common.annotations.GwtCompatible()