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. 
public interface com.google.common.collect.MapDifference$ValueDifference<V>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.google.common.collect.MapDifference$ValueDifference
  super_class: java.lang.Object
{
  public abstract V leftValue();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()TV;

  public abstract V rightValue();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()TV;

  public abstract boolean equals(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    RuntimeVisibleTypeAnnotations: 
      METHOD_FORMAL_PARAMETER
        org.checkerframework.checker.nullness.qual.Nullable()
    MethodParameters:
       Name  Flags
      other  

  public abstract int hashCode();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
Signature: <V:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "MapDifference.java"
NestHost: com.google.common.collect.MapDifference
InnerClasses:
  public abstract ValueDifference = com.google.common.collect.MapDifference$ValueDifference of com.google.common.collect.MapDifference
    RuntimeVisibleAnnotations: 
      com.google.errorprone.annotations.DoNotMock(value = "Use Maps.difference")