java/12 : java.base/java/util/Optional.class

Optional
https://openjdk.java.net/
GPLv2 + Classpath Exception
public final class java.util.Optional<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: java.util.Optional
  super_class: java.lang.Object
{
  private static final java.util.Optional<?> EMPTY;
    descriptor: Ljava/util/Optional;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/util/Optional<*>;

  private final T value;
    descriptor: Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: TT;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 64
            new java.util.Optional
            dup
            invokespecial java.util.Optional.<init>:()V
            putstatic java.util.Optional.EMPTY:Ljava/util/Optional;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.util.Optional this
         0: .line 77
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 78
            aload 0 /* this */
            aconst_null
            putfield java.util.Optional.value:Ljava/lang/Object;
         2: .line 79
            return
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljava/util/Optional<TT;>;

  public static <T> java.util.Optional<T> empty();
    descriptor: ()Ljava/util/Optional;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=0
         0: .line 96
            getstatic java.util.Optional.EMPTY:Ljava/util/Optional;
            astore 0 /* t */
        start local 0 // java.util.Optional t
         1: .line 97
            aload 0 /* t */
            areturn
        end local 0 // java.util.Optional t
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            1    2     0     t  Ljava/util/Optional<TT;>;
    Signature: <T:Ljava/lang/Object;>()Ljava/util/Optional<TT;>;

  private void <init>();
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.lang.Object value
         0: .line 106
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 107
            aload 0 /* this */
            aload 1 /* value */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            putfield java.util.Optional.value:Ljava/lang/Object;
         2: .line 108
            return
        end local 1 // java.lang.Object value
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Ljava/util/Optional<TT;>;
            0    3     1  value  TT;
    Signature: (TT;)V
    MethodParameters:
       Name  Flags
      value  

  public static <T> java.util.Optional<T> of(T);
    descriptor: (Ljava/lang/Object;)Ljava/util/Optional;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.Object value
         0: .line 120
            new java.util.Optional
            dup
            aload 0 /* value */
            invokespecial java.util.Optional.<init>:(Ljava/lang/Object;)V
            areturn
        end local 0 // java.lang.Object value
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0  value  TT;
    Signature: <T:Ljava/lang/Object;>(TT;)Ljava/util/Optional<TT;>;
    MethodParameters:
       Name  Flags
      value  

  public static <T> java.util.Optional<T> ofNullable(T);
    descriptor: (Ljava/lang/Object;)Ljava/util/Optional;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.Object value
         0: .line 133
            aload 0 /* value */
            ifnonnull 1
            invokestatic java.util.Optional.empty:()Ljava/util/Optional;
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* value */
            invokestatic java.util.Optional.of:(Ljava/lang/Object;)Ljava/util/Optional;
      StackMap locals:
      StackMap stack: java.util.Optional
         2: areturn
        end local 0 // java.lang.Object value
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0  value  TT;
    Signature: <T:Ljava/lang/Object;>(TT;)Ljava/util/Optional<TT;>;
    MethodParameters:
       Name  Flags
      value  

  public T get();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.util.Optional this
         0: .line 147
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnonnull 2
         1: .line 148
            new java.util.NoSuchElementException
            dup
            ldc "No value present"
            invokespecial java.util.NoSuchElementException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 150
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            areturn
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljava/util/Optional<TT;>;
    Signature: ()TT;

  public boolean isPresent();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.util.Optional this
         0: .line 159
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnull 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/util/Optional<TT;>;

  public boolean isEmpty();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.util.Optional this
         0: .line 170
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnonnull 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/util/Optional<TT;>;

  public void ifPresent(java.util.function.Consumer<? super T>);
    descriptor: (Ljava/util/function/Consumer;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.util.function.Consumer action
         0: .line 182
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnull 2
         1: .line 183
            aload 1 /* action */
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            invokeinterface java.util.function.Consumer.accept:(Ljava/lang/Object;)V
         2: .line 185
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.util.function.Consumer action
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Ljava/util/Optional<TT;>;
            0    3     1  action  Ljava/util/function/Consumer<-TT;>;
    Signature: (Ljava/util/function/Consumer<-TT;>;)V
    MethodParameters:
        Name  Flags
      action  

  public void ifPresentOrElse(java.util.function.Consumer<? super T>, java.lang.Runnable);
    descriptor: (Ljava/util/function/Consumer;Ljava/lang/Runnable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // java.util.Optional this
        start local 1 // java.util.function.Consumer action
        start local 2 // java.lang.Runnable emptyAction
         0: .line 200
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnull 3
         1: .line 201
            aload 1 /* action */
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            invokeinterface java.util.function.Consumer.accept:(Ljava/lang/Object;)V
         2: .line 202
            goto 4
         3: .line 203
      StackMap locals:
      StackMap stack:
            aload 2 /* emptyAction */
            invokeinterface java.lang.Runnable.run:()V
         4: .line 205
      StackMap locals:
      StackMap stack:
            return
        end local 2 // java.lang.Runnable emptyAction
        end local 1 // java.util.function.Consumer action
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    5     0         this  Ljava/util/Optional<TT;>;
            0    5     1       action  Ljava/util/function/Consumer<-TT;>;
            0    5     2  emptyAction  Ljava/lang/Runnable;
    Signature: (Ljava/util/function/Consumer<-TT;>;Ljava/lang/Runnable;)V
    MethodParameters:
             Name  Flags
      action       
      emptyAction  

  public java.util.Optional<T> filter(java.util.function.Predicate<? super T>);
    descriptor: (Ljava/util/function/Predicate;)Ljava/util/Optional;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.util.function.Predicate predicate
         0: .line 219
            aload 1 /* predicate */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 220
            aload 0 /* this */
            invokevirtual java.util.Optional.isPresent:()Z
            ifne 3
         2: .line 221
            aload 0 /* this */
            areturn
         3: .line 223
      StackMap locals:
      StackMap stack:
            aload 1 /* predicate */
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            invokeinterface java.util.function.Predicate.test:(Ljava/lang/Object;)Z
            ifeq 4
            aload 0 /* this */
            goto 5
      StackMap locals:
      StackMap stack:
         4: invokestatic java.util.Optional.empty:()Ljava/util/Optional;
      StackMap locals:
      StackMap stack: java.util.Optional
         5: areturn
        end local 1 // java.util.function.Predicate predicate
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0       this  Ljava/util/Optional<TT;>;
            0    6     1  predicate  Ljava/util/function/Predicate<-TT;>;
    Signature: (Ljava/util/function/Predicate<-TT;>;)Ljava/util/Optional<TT;>;
    MethodParameters:
           Name  Flags
      predicate  

  public <U> java.util.Optional<U> map(java.util.function.Function<? super T, ? extends U>);
    descriptor: (Ljava/util/function/Function;)Ljava/util/Optional;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.util.function.Function mapper
         0: .line 261
            aload 1 /* mapper */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 262
            aload 0 /* this */
            invokevirtual java.util.Optional.isPresent:()Z
            ifne 3
         2: .line 263
            invokestatic java.util.Optional.empty:()Ljava/util/Optional;
            areturn
         3: .line 265
      StackMap locals:
      StackMap stack:
            aload 1 /* mapper */
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            invokeinterface java.util.function.Function.apply:(Ljava/lang/Object;)Ljava/lang/Object;
            invokestatic java.util.Optional.ofNullable:(Ljava/lang/Object;)Ljava/util/Optional;
            areturn
        end local 1 // java.util.function.Function mapper
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    4     0    this  Ljava/util/Optional<TT;>;
            0    4     1  mapper  Ljava/util/function/Function<-TT;+TU;>;
    Signature: <U:Ljava/lang/Object;>(Ljava/util/function/Function<-TT;+TU;>;)Ljava/util/Optional<TU;>;
    MethodParameters:
        Name  Flags
      mapper  

  public <U> java.util.Optional<U> flatMap(java.util.function.Function<? super T, ? extends java.util.Optional<? extends U>>);
    descriptor: (Ljava/util/function/Function;)Ljava/util/Optional;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.util.function.Function mapper
         0: .line 289
            aload 1 /* mapper */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 290
            aload 0 /* this */
            invokevirtual java.util.Optional.isPresent:()Z
            ifne 3
         2: .line 291
            invokestatic java.util.Optional.empty:()Ljava/util/Optional;
            areturn
         3: .line 294
      StackMap locals:
      StackMap stack:
            aload 1 /* mapper */
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            invokeinterface java.util.function.Function.apply:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.util.Optional
            astore 2 /* r */
        start local 2 // java.util.Optional r
         4: .line 295
            aload 2 /* r */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.util.Optional
            areturn
        end local 2 // java.util.Optional r
        end local 1 // java.util.function.Function mapper
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    5     0    this  Ljava/util/Optional<TT;>;
            0    5     1  mapper  Ljava/util/function/Function<-TT;+Ljava/util/Optional<+TU;>;>;
            4    5     2       r  Ljava/util/Optional<TU;>;
    Signature: <U:Ljava/lang/Object;>(Ljava/util/function/Function<-TT;+Ljava/util/Optional<+TU;>;>;)Ljava/util/Optional<TU;>;
    MethodParameters:
        Name  Flags
      mapper  

  public java.util.Optional<T> or(java.util.function.Supplier<? extends java.util.Optional<? extends T>>);
    descriptor: (Ljava/util/function/Supplier;)Ljava/util/Optional;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=3, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.util.function.Supplier supplier
         0: .line 313
            aload 1 /* supplier */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 314
            aload 0 /* this */
            invokevirtual java.util.Optional.isPresent:()Z
            ifeq 3
         2: .line 315
            aload 0 /* this */
            areturn
         3: .line 318
      StackMap locals:
      StackMap stack:
            aload 1 /* supplier */
            invokeinterface java.util.function.Supplier.get:()Ljava/lang/Object;
            checkcast java.util.Optional
            astore 2 /* r */
        start local 2 // java.util.Optional r
         4: .line 319
            aload 2 /* r */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.util.Optional
            areturn
        end local 2 // java.util.Optional r
        end local 1 // java.util.function.Supplier supplier
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0      this  Ljava/util/Optional<TT;>;
            0    5     1  supplier  Ljava/util/function/Supplier<+Ljava/util/Optional<+TT;>;>;
            4    5     2         r  Ljava/util/Optional<TT;>;
    Signature: (Ljava/util/function/Supplier<+Ljava/util/Optional<+TT;>;>;)Ljava/util/Optional<TT;>;
    MethodParameters:
          Name  Flags
      supplier  

  public java.util.stream.Stream<T> stream();
    descriptor: ()Ljava/util/stream/Stream;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.util.Optional this
         0: .line 339
            aload 0 /* this */
            invokevirtual java.util.Optional.isPresent:()Z
            ifne 2
         1: .line 340
            invokestatic java.util.stream.Stream.empty:()Ljava/util/stream/Stream;
            areturn
         2: .line 342
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            invokestatic java.util.stream.Stream.of:(Ljava/lang/Object;)Ljava/util/stream/Stream;
            areturn
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljava/util/Optional<TT;>;
    Signature: ()Ljava/util/stream/Stream<TT;>;

  public T orElse();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.lang.Object other
         0: .line 355
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnull 1
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 1 /* other */
      StackMap locals:
      StackMap stack: java.lang.Object
         2: areturn
        end local 1 // java.lang.Object other
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Ljava/util/Optional<TT;>;
            0    3     1  other  TT;
    Signature: (TT;)TT;
    MethodParameters:
       Name  Flags
      other  

  public T orElseGet(java.util.function.Supplier<? extends T>);
    descriptor: (Ljava/util/function/Supplier;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.util.function.Supplier supplier
         0: .line 369
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnull 1
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 1 /* supplier */
            invokeinterface java.util.function.Supplier.get:()Ljava/lang/Object;
      StackMap locals:
      StackMap stack: java.lang.Object
         2: areturn
        end local 1 // java.util.function.Supplier supplier
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Ljava/util/Optional<TT;>;
            0    3     1  supplier  Ljava/util/function/Supplier<+TT;>;
    Signature: (Ljava/util/function/Supplier<+TT;>;)TT;
    MethodParameters:
          Name  Flags
      supplier  

  public T orElseThrow();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.util.Optional this
         0: .line 381
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnonnull 2
         1: .line 382
            new java.util.NoSuchElementException
            dup
            ldc "No value present"
            invokespecial java.util.NoSuchElementException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 384
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            areturn
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljava/util/Optional<TT;>;
    Signature: ()TT;

  public <X extends java.lang.Throwable> T orElseThrow(java.util.function.Supplier<? extends X>) throws X;
    descriptor: (Ljava/util/function/Supplier;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.util.function.Supplier exceptionSupplier
         0: .line 405
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnull 2
         1: .line 406
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            areturn
         2: .line 408
      StackMap locals:
      StackMap stack:
            aload 1 /* exceptionSupplier */
            invokeinterface java.util.function.Supplier.get:()Ljava/lang/Object;
            checkcast java.lang.Throwable
            athrow
        end local 1 // java.util.function.Supplier exceptionSupplier
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    3     0               this  Ljava/util/Optional<TT;>;
            0    3     1  exceptionSupplier  Ljava/util/function/Supplier<+TX;>;
    Exceptions:
      throws java.lang.Throwable
    Signature: <X:Ljava/lang/Throwable;>(Ljava/util/function/Supplier<+TX;>;)TT;^TX;
    MethodParameters:
                   Name  Flags
      exceptionSupplier  

  public boolean equals(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // java.util.Optional this
        start local 1 // java.lang.Object obj
         0: .line 427
            aload 0 /* this */
            aload 1 /* obj */
            if_acmpne 2
         1: .line 428
            iconst_1
            ireturn
         2: .line 431
      StackMap locals:
      StackMap stack:
            aload 1 /* obj */
            instanceof java.util.Optional
            ifne 4
         3: .line 432
            iconst_0
            ireturn
         4: .line 435
      StackMap locals:
      StackMap stack:
            aload 1 /* obj */
            checkcast java.util.Optional
            astore 2 /* other */
        start local 2 // java.util.Optional other
         5: .line 436
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            aload 2 /* other */
            getfield java.util.Optional.value:Ljava/lang/Object;
            invokestatic java.util.Objects.equals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ireturn
        end local 2 // java.util.Optional other
        end local 1 // java.lang.Object obj
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    6     0   this  Ljava/util/Optional<TT;>;
            0    6     1    obj  Ljava/lang/Object;
            5    6     2  other  Ljava/util/Optional<*>;
    MethodParameters:
      Name  Flags
      obj   

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.util.Optional this
         0: .line 448
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            invokestatic java.util.Objects.hashCode:(Ljava/lang/Object;)I
            ireturn
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/util/Optional<TT;>;

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=1, args_size=1
        start local 0 // java.util.Optional this
         0: .line 465
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            ifnull 2
         1: .line 466
            ldc "Optional[%s]"
            iconst_1
            anewarray java.lang.Object
            dup
            iconst_0
            aload 0 /* this */
            getfield java.util.Optional.value:Ljava/lang/Object;
            aastore
            invokestatic java.lang.String.format:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            goto 3
         2: .line 467
      StackMap locals:
      StackMap stack:
            ldc "Optional.empty"
         3: .line 465
      StackMap locals:
      StackMap stack: java.lang.String
            areturn
        end local 0 // java.util.Optional this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Ljava/util/Optional<TT;>;
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "Optional.java"
/

java/ 12/ java.base/java/util/Optional.class
