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. 
abstract class com.google.common.reflect.TypeCapture<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0420) ACC_SUPER, ACC_ABSTRACT
  this_class: com.google.common.reflect.TypeCapture
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.reflect.TypeCapture this
         0: .line 27
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.google.common.reflect.TypeCapture this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/reflect/TypeCapture<TT;>;

  final java.lang.reflect.Type capture();
    descriptor: ()Ljava/lang/reflect/Type;
    flags: (0x0010) ACC_FINAL
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // com.google.common.reflect.TypeCapture this
         0: .line 31
            aload 0 /* this */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.Class.getGenericSuperclass:()Ljava/lang/reflect/Type;
            astore 1 /* superclass */
        start local 1 // java.lang.reflect.Type superclass
         1: .line 32
            aload 1 /* superclass */
            instanceof java.lang.reflect.ParameterizedType
            ldc "%s isn't parameterized"
            aload 1 /* superclass */
            invokestatic com.google.common.base.Preconditions.checkArgument:(ZLjava/lang/String;Ljava/lang/Object;)V
         2: .line 33
            aload 1 /* superclass */
            checkcast java.lang.reflect.ParameterizedType
            invokeinterface java.lang.reflect.ParameterizedType.getActualTypeArguments:()[Ljava/lang/reflect/Type;
            iconst_0
            aaload
            areturn
        end local 1 // java.lang.reflect.Type superclass
        end local 0 // com.google.common.reflect.TypeCapture this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lcom/google/common/reflect/TypeCapture<TT;>;
            1    3     1  superclass  Ljava/lang/reflect/Type;
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "TypeCapture.java"