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. 
class com.google.common.collect.RegularContiguousSet$3 extends com.google.common.collect.ImmutableAsList<C>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.RegularContiguousSet$3
  super_class: com.google.common.collect.ImmutableAsList
{
  final com.google.common.collect.RegularContiguousSet this$0;
    descriptor: Lcom/google/common/collect/RegularContiguousSet;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(com.google.common.collect.RegularContiguousSet);
    descriptor: (Lcom/google/common/collect/RegularContiguousSet;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.collect.RegularContiguousSet$3 this
         0: .line 125
            aload 0 /* this */
            aload 1
            putfield com.google.common.collect.RegularContiguousSet$3.this$0:Lcom/google/common/collect/RegularContiguousSet;
            aload 0 /* this */
            invokespecial com.google.common.collect.ImmutableAsList.<init>:()V
            return
        end local 0 // com.google.common.collect.RegularContiguousSet$3 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/RegularContiguousSet$3;
    MethodParameters:
        Name  Flags
      this$0  final

  com.google.common.collect.ImmutableSortedSet<C> delegateCollection();
    descriptor: ()Lcom/google/common/collect/ImmutableSortedSet;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.RegularContiguousSet$3 this
         0: .line 128
            aload 0 /* this */
            getfield com.google.common.collect.RegularContiguousSet$3.this$0:Lcom/google/common/collect/RegularContiguousSet;
            areturn
        end local 0 // com.google.common.collect.RegularContiguousSet$3 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/RegularContiguousSet$3;
    Signature: ()Lcom/google/common/collect/ImmutableSortedSet<TC;>;

  public C get();
    descriptor: (I)Ljava/lang/Comparable;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.google.common.collect.RegularContiguousSet$3 this
        start local 1 // int i
         0: .line 133
            iload 1 /* i */
            aload 0 /* this */
            invokevirtual com.google.common.collect.RegularContiguousSet$3.size:()I
            invokestatic com.google.common.base.Preconditions.checkElementIndex:(II)I
            pop
         1: .line 134
            aload 0 /* this */
            getfield com.google.common.collect.RegularContiguousSet$3.this$0:Lcom/google/common/collect/RegularContiguousSet;
            getfield com.google.common.collect.RegularContiguousSet.domain:Lcom/google/common/collect/DiscreteDomain;
            aload 0 /* this */
            getfield com.google.common.collect.RegularContiguousSet$3.this$0:Lcom/google/common/collect/RegularContiguousSet;
            invokevirtual com.google.common.collect.RegularContiguousSet.first:()Ljava/lang/Comparable;
            iload 1 /* i */
            i2l
            invokevirtual com.google.common.collect.DiscreteDomain.offset:(Ljava/lang/Comparable;J)Ljava/lang/Comparable;
            areturn
        end local 1 // int i
        end local 0 // com.google.common.collect.RegularContiguousSet$3 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/google/common/collect/RegularContiguousSet$3;
            0    2     1     i  I
    Signature: (I)TC;
    MethodParameters:
      Name  Flags
      i     

  com.google.common.collect.ImmutableCollection delegateCollection();
    descriptor: ()Lcom/google/common/collect/ImmutableCollection;
    flags: (0x1040) ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokevirtual com.google.common.collect.RegularContiguousSet$3.delegateCollection:()Lcom/google/common/collect/ImmutableSortedSet;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public java.lang.Object get(int);
    descriptor: (I)Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            iload 1
            invokevirtual com.google.common.collect.RegularContiguousSet$3.get:(I)Ljava/lang/Comparable;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Lcom/google/common/collect/ImmutableAsList<TC;>;
SourceFile: "RegularContiguousSet.java"
EnclosingMethod: com.google.common.collect.RegularContiguousSet.createAsList:()Lcom/google/common/collect/ImmutableList;
NestHost: com.google.common.collect.RegularContiguousSet
InnerClasses:
  com.google.common.collect.RegularContiguousSet$3