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.cache.LoadingCache<K, V> extends com.google.common.cache.Cache<K, V>, com.google.common.base.Function<K, V>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.google.common.cache.LoadingCache
  super_class: java.lang.Object
{
  public abstract V get();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.util.concurrent.ExecutionException
    Signature: (TK;)TV;
    MethodParameters:
      Name  Flags
      key   

  public abstract V getUnchecked();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (TK;)TV;
    MethodParameters:
      Name  Flags
      key   

  public abstract com.google.common.collect.ImmutableMap<K, V> getAll(java.lang.Iterable<? extends K>);
    descriptor: (Ljava/lang/Iterable;)Lcom/google/common/collect/ImmutableMap;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.util.concurrent.ExecutionException
    Signature: (Ljava/lang/Iterable<+TK;>;)Lcom/google/common/collect/ImmutableMap<TK;TV;>;
    MethodParameters:
      Name  Flags
      keys  

  public abstract V apply();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (TK;)TV;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
      Name  Flags
      key   

  public abstract void refresh();
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (TK;)V
    MethodParameters:
      Name  Flags
      key   

  public abstract java.util.concurrent.ConcurrentMap<K, V> asMap();
    descriptor: ()Ljava/util/concurrent/ConcurrentMap;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/concurrent/ConcurrentMap<TK;TV;>;
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Ljava/lang/Object;Lcom/google/common/cache/Cache<TK;TV;>;Lcom/google/common/base/Function<TK;TV;>;
SourceFile: "LoadingCache.java"
    RuntimeInvisibleAnnotations: 
      com.google.common.annotations.GwtCompatible()