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.util.concurrent.CycleDetectingLockFactory$1 extends java.lang.ThreadLocal<java.util.ArrayList<com.google.common.util.concurrent.CycleDetectingLockFactory$LockGraphNode>>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.util.concurrent.CycleDetectingLockFactory$1
  super_class: java.lang.ThreadLocal
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.util.concurrent.CycleDetectingLockFactory$1 this
         0: .line 460
            aload 0 /* this */
            invokespecial java.lang.ThreadLocal.<init>:()V
            return
        end local 0 // com.google.common.util.concurrent.CycleDetectingLockFactory$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/util/concurrent/CycleDetectingLockFactory$1;

  protected java.util.ArrayList<com.google.common.util.concurrent.CycleDetectingLockFactory$LockGraphNode> initialValue();
    descriptor: ()Ljava/util/ArrayList;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.util.concurrent.CycleDetectingLockFactory$1 this
         0: .line 463
            iconst_3
            invokestatic com.google.common.collect.Lists.newArrayListWithCapacity:(I)Ljava/util/ArrayList;
            areturn
        end local 0 // com.google.common.util.concurrent.CycleDetectingLockFactory$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/util/concurrent/CycleDetectingLockFactory$1;
    Signature: ()Ljava/util/ArrayList<Lcom/google/common/util/concurrent/CycleDetectingLockFactory$LockGraphNode;>;

  protected java.lang.Object initialValue();
    descriptor: ()Ljava/lang/Object;
    flags: (0x1044) ACC_PROTECTED, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokevirtual com.google.common.util.concurrent.CycleDetectingLockFactory$1.initialValue:()Ljava/util/ArrayList;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/ThreadLocal<Ljava/util/ArrayList<Lcom/google/common/util/concurrent/CycleDetectingLockFactory$LockGraphNode;>;>;
SourceFile: "CycleDetectingLockFactory.java"
EnclosingMethod: com.google.common.util.concurrent.CycleDetectingLockFactory
NestHost: com.google.common.util.concurrent.CycleDetectingLockFactory
InnerClasses:
  com.google.common.util.concurrent.CycleDetectingLockFactory$1
  private LockGraphNode = com.google.common.util.concurrent.CycleDetectingLockFactory$LockGraphNode of com.google.common.util.concurrent.CycleDetectingLockFactory