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.Lists$OnePlusArrayList<E> extends java.util.AbstractList<E> implements java.io.Serializable, java.util.RandomAccess
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.Lists$OnePlusArrayList
  super_class: java.util.AbstractList
{
  final E first;
    descriptor: Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL
    Signature: TE;
    RuntimeVisibleTypeAnnotations: 
      FIELD
        org.checkerframework.checker.nullness.qual.Nullable()

  final E[] rest;
    descriptor: [Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL
    Signature: [TE;

  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 0

  void <init>(E, );
    descriptor: (Ljava/lang/Object;[Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.google.common.collect.Lists$OnePlusArrayList this
        start local 1 // java.lang.Object first
        start local 2 // java.lang.Object[] rest
         0: .line 320
            aload 0 /* this */
            invokespecial java.util.AbstractList.<init>:()V
         1: .line 321
            aload 0 /* this */
            aload 1 /* first */
            putfield com.google.common.collect.Lists$OnePlusArrayList.first:Ljava/lang/Object;
         2: .line 322
            aload 0 /* this */
            aload 2 /* rest */
            invokestatic com.google.common.base.Preconditions.checkNotNull:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.Object[]
            putfield com.google.common.collect.Lists$OnePlusArrayList.rest:[Ljava/lang/Object;
         3: .line 323
            return
        end local 2 // java.lang.Object[] rest
        end local 1 // java.lang.Object first
        end local 0 // com.google.common.collect.Lists$OnePlusArrayList this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0   this  Lcom/google/common/collect/Lists$OnePlusArrayList<TE;>;
            0    4     1  first  TE;
            0    4     2   rest  [Ljava/lang/Object;
    Signature: (TE;[TE;)V
    RuntimeVisibleTypeAnnotations: 
      METHOD_FORMAL_PARAMETER
        org.checkerframework.checker.nullness.qual.Nullable()
    MethodParameters:
       Name  Flags
      first  
      rest   

  public int size();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.google.common.collect.Lists$OnePlusArrayList this
         0: .line 327
            aload 0 /* this */
            getfield com.google.common.collect.Lists$OnePlusArrayList.rest:[Ljava/lang/Object;
            arraylength
            iconst_1
            invokestatic com.google.common.math.IntMath.saturatedAdd:(II)I
            ireturn
        end local 0 // com.google.common.collect.Lists$OnePlusArrayList this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Lists$OnePlusArrayList<TE;>;

  public E get();
    descriptor: (I)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.common.collect.Lists$OnePlusArrayList this
        start local 1 // int index
         0: .line 333
            iload 1 /* index */
            aload 0 /* this */
            invokevirtual com.google.common.collect.Lists$OnePlusArrayList.size:()I
            invokestatic com.google.common.base.Preconditions.checkElementIndex:(II)I
            pop
         1: .line 334
            iload 1 /* index */
            ifne 2
            aload 0 /* this */
            getfield com.google.common.collect.Lists$OnePlusArrayList.first:Ljava/lang/Object;
            goto 3
      StackMap locals:
      StackMap stack:
         2: aload 0 /* this */
            getfield com.google.common.collect.Lists$OnePlusArrayList.rest:[Ljava/lang/Object;
            iload 1 /* index */
            iconst_1
            isub
            aaload
      StackMap locals:
      StackMap stack: java.lang.Object
         3: areturn
        end local 1 // int index
        end local 0 // com.google.common.collect.Lists$OnePlusArrayList this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0   this  Lcom/google/common/collect/Lists$OnePlusArrayList<TE;>;
            0    4     1  index  I
    Signature: (I)TE;
    MethodParameters:
       Name  Flags
      index  
}
Signature: <E:Ljava/lang/Object;>Ljava/util/AbstractList<TE;>;Ljava/io/Serializable;Ljava/util/RandomAccess;
SourceFile: "Lists.java"
NestHost: com.google.common.collect.Lists
InnerClasses:
  private OnePlusArrayList = com.google.common.collect.Lists$OnePlusArrayList of com.google.common.collect.Lists