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.AbstractFuture$Failure$1 extends java.lang.Throwable
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.util.concurrent.AbstractFuture$Failure$1
  super_class: java.lang.Throwable
{
  void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.util.concurrent.AbstractFuture$Failure$1 this
        start local 1 // java.lang.String $anonymous0
         0: .line 266
            aload 0 /* this */
            aload 1 /* $anonymous0 */
            invokespecial java.lang.Throwable.<init>:(Ljava/lang/String;)V
            return
        end local 1 // java.lang.String $anonymous0
        end local 0 // com.google.common.util.concurrent.AbstractFuture$Failure$1 this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    1     0         this  Lcom/google/common/util/concurrent/AbstractFuture$Failure$1;
            0    1     1  $anonymous0  Ljava/lang/String;
    MethodParameters:
             Name  Flags
      $anonymous0  

  public synchronized java.lang.Throwable fillInStackTrace();
    descriptor: ()Ljava/lang/Throwable;
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.util.concurrent.AbstractFuture$Failure$1 this
         0: .line 269
            aload 0 /* this */
            areturn
        end local 0 // com.google.common.util.concurrent.AbstractFuture$Failure$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/util/concurrent/AbstractFuture$Failure$1;
}
SourceFile: "AbstractFuture.java"
EnclosingMethod: com.google.common.util.concurrent.AbstractFuture$Failure
NestHost: com.google.common.util.concurrent.AbstractFuture
InnerClasses:
  private final Failure = com.google.common.util.concurrent.AbstractFuture$Failure of com.google.common.util.concurrent.AbstractFuture
  com.google.common.util.concurrent.AbstractFuture$Failure$1