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. 
final class com.google.common.graph.MapRetrievalCache$CacheEntry<K, V>
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.google.common.graph.MapRetrievalCache$CacheEntry
  super_class: java.lang.Object
{
  final K key;
    descriptor: Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL
    Signature: TK;

  final V value;
    descriptor: Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL
    Signature: TV;

  void <init>(K, );
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.google.common.graph.MapRetrievalCache$CacheEntry this
        start local 1 // java.lang.Object key
        start local 2 // java.lang.Object value
         0: .line 100
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 101
            aload 0 /* this */
            aload 1 /* key */
            putfield com.google.common.graph.MapRetrievalCache$CacheEntry.key:Ljava/lang/Object;
         2: .line 102
            aload 0 /* this */
            aload 2 /* value */
            putfield com.google.common.graph.MapRetrievalCache$CacheEntry.value:Ljava/lang/Object;
         3: .line 103
            return
        end local 2 // java.lang.Object value
        end local 1 // java.lang.Object key
        end local 0 // com.google.common.graph.MapRetrievalCache$CacheEntry this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0   this  Lcom/google/common/graph/MapRetrievalCache$CacheEntry<TK;TV;>;
            0    4     1    key  TK;
            0    4     2  value  TV;
    Signature: (TK;TV;)V
    MethodParameters:
       Name  Flags
      key    
      value  
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "MapRetrievalCache.java"
NestHost: com.google.common.graph.MapRetrievalCache
InnerClasses:
  private final CacheEntry = com.google.common.graph.MapRetrievalCache$CacheEntry of com.google.common.graph.MapRetrievalCache