https://github.com/reactor/reactor-core: Non-Blocking Reactive Foundation for the JVM (reactor)
  • Stephane Maldini
  • David Karnok
  • Simon Baslé
  • Sergei Egorov
  • Sébastien Deleuze 
final class reactor.core.publisher.BlockingOptionalMonoSubscriber<T> extends java.util.concurrent.CountDownLatch implements reactor.core.publisher.InnerConsumer<T>, reactor.core.Disposable
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: reactor.core.publisher.BlockingOptionalMonoSubscriber
  super_class: java.util.concurrent.CountDownLatch
{
  T value;
    descriptor: Ljava/lang/Object;
    flags: (0x0000) 
    Signature: TT;

  java.lang.Throwable error;
    descriptor: Ljava/lang/Throwable;
    flags: (0x0000) 

  org.reactivestreams.Subscription s;
    descriptor: Lorg/reactivestreams/Subscription;
    flags: (0x0000) 

  volatile boolean cancelled;
    descriptor: Z
    flags: (0x0040) ACC_VOLATILE

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
         0: .line 65
            aload 0 /* this */
            iconst_1
            invokespecial java.util.concurrent.CountDownLatch.<init>:(I)V
         1: .line 66
            return
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;

  public void onNext();
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
        start local 1 // java.lang.Object t
         0: .line 70
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.value:Ljava/lang/Object;
            ifnonnull 3
         1: .line 71
            aload 0 /* this */
            aload 1 /* t */
            putfield reactor.core.publisher.BlockingOptionalMonoSubscriber.value:Ljava/lang/Object;
         2: .line 72
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.countDown:()V
         3: .line 74
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.lang.Object t
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;
            0    4     1     t  TT;
    Signature: (TT;)V
    MethodParameters:
      Name  Flags
      t     

  public void onError(java.lang.Throwable);
    descriptor: (Ljava/lang/Throwable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
        start local 1 // java.lang.Throwable t
         0: .line 78
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.value:Ljava/lang/Object;
            ifnonnull 2
         1: .line 79
            aload 0 /* this */
            aload 1 /* t */
            putfield reactor.core.publisher.BlockingOptionalMonoSubscriber.error:Ljava/lang/Throwable;
         2: .line 81
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.countDown:()V
         3: .line 82
            return
        end local 1 // java.lang.Throwable t
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;
            0    4     1     t  Ljava/lang/Throwable;
    MethodParameters:
      Name  Flags
      t     

  public final void onSubscribe(org.reactivestreams.Subscription);
    descriptor: (Lorg/reactivestreams/Subscription;)V
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
        start local 1 // org.reactivestreams.Subscription s
         0: .line 86
            aload 0 /* this */
            aload 1 /* s */
            putfield reactor.core.publisher.BlockingOptionalMonoSubscriber.s:Lorg/reactivestreams/Subscription;
         1: .line 87
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.cancelled:Z
            ifne 3
         2: .line 88
            aload 1 /* s */
            ldc 9223372036854775807
            invokeinterface org.reactivestreams.Subscription.request:(J)V
         3: .line 90
      StackMap locals:
      StackMap stack:
            return
        end local 1 // org.reactivestreams.Subscription s
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;
            0    4     1     s  Lorg/reactivestreams/Subscription;
    MethodParameters:
      Name  Flags
      s     

  public final void onComplete();
    descriptor: ()V
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
         0: .line 94
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.countDown:()V
         1: .line 95
            return
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;

  public reactor.util.context.Context currentContext();
    descriptor: ()Lreactor/util/context/Context;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
         0: .line 99
            invokestatic reactor.util.context.Context.empty:()Lreactor/util/context/Context;
            areturn
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;

  public final void dispose();
    descriptor: ()V
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
         0: .line 104
            aload 0 /* this */
            iconst_1
            putfield reactor.core.publisher.BlockingOptionalMonoSubscriber.cancelled:Z
         1: .line 105
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.s:Lorg/reactivestreams/Subscription;
            astore 1 /* s */
        start local 1 // org.reactivestreams.Subscription s
         2: .line 106
            aload 1 /* s */
            ifnull 5
         3: .line 107
            aload 0 /* this */
            aconst_null
            putfield reactor.core.publisher.BlockingOptionalMonoSubscriber.s:Lorg/reactivestreams/Subscription;
         4: .line 108
            aload 1 /* s */
            invokeinterface org.reactivestreams.Subscription.cancel:()V
         5: .line 110
      StackMap locals: org.reactivestreams.Subscription
      StackMap stack:
            return
        end local 1 // org.reactivestreams.Subscription s
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;
            2    6     1     s  Lorg/reactivestreams/Subscription;

  final java.util.Optional<T> blockingGet();
    descriptor: ()Ljava/util/Optional;
    flags: (0x0010) ACC_FINAL
    Code:
      stack=5, locals=3, args_size=1
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
         0: .line 119
            invokestatic reactor.core.scheduler.Schedulers.isInNonBlockingThread:()Z
            ifeq 2
         1: .line 120
            new java.lang.IllegalStateException
            dup
            new java.lang.StringBuilder
            dup
            ldc "blockOptional() is blocking, which is not supported in thread "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic java.lang.Thread.currentThread:()Ljava/lang/Thread;
            invokevirtual java.lang.Thread.getName:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 122
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.getCount:()J
            lconst_0
            lcmp
            ifeq 10
         3: .line 124
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.await:()V
         4: .line 125
            goto 10
         5: .line 126
      StackMap locals:
      StackMap stack: java.lang.InterruptedException
            astore 1 /* ex */
        start local 1 // java.lang.InterruptedException ex
         6: .line 127
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.dispose:()V
         7: .line 128
            aload 1 /* ex */
            invokestatic reactor.core.Exceptions.propagate:(Ljava/lang/Throwable;)Ljava/lang/RuntimeException;
            astore 2 /* re */
        start local 2 // java.lang.RuntimeException re
         8: .line 130
            aload 2 /* re */
            new java.lang.Exception
            dup
            ldc "#blockOptional() has been interrupted"
            invokespecial java.lang.Exception.<init>:(Ljava/lang/String;)V
            invokevirtual java.lang.RuntimeException.addSuppressed:(Ljava/lang/Throwable;)V
         9: .line 131
            aload 2 /* re */
            athrow
        end local 2 // java.lang.RuntimeException re
        end local 1 // java.lang.InterruptedException ex
        10: .line 135
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.error:Ljava/lang/Throwable;
            astore 1 /* e */
        start local 1 // java.lang.Throwable e
        11: .line 136
            aload 1 /* e */
            ifnull 15
        12: .line 137
            aload 1 /* e */
            invokestatic reactor.core.Exceptions.propagate:(Ljava/lang/Throwable;)Ljava/lang/RuntimeException;
            astore 2 /* re */
        start local 2 // java.lang.RuntimeException re
        13: .line 139
            aload 2 /* re */
            new java.lang.Exception
            dup
            ldc "#block terminated with an error"
            invokespecial java.lang.Exception.<init>:(Ljava/lang/String;)V
            invokevirtual java.lang.RuntimeException.addSuppressed:(Ljava/lang/Throwable;)V
        14: .line 140
            aload 2 /* re */
            athrow
        end local 2 // java.lang.RuntimeException re
        15: .line 142
      StackMap locals: java.lang.Throwable
      StackMap stack:
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.value:Ljava/lang/Object;
            invokestatic java.util.Optional.ofNullable:(Ljava/lang/Object;)Ljava/util/Optional;
            areturn
        end local 1 // java.lang.Throwable e
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   16     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;
            6   10     1    ex  Ljava/lang/InterruptedException;
            8   10     2    re  Ljava/lang/RuntimeException;
           11   16     1     e  Ljava/lang/Throwable;
           13   15     2    re  Ljava/lang/RuntimeException;
      Exception table:
        from    to  target  type
           3     4       5  Class java.lang.InterruptedException
    Signature: ()Ljava/util/Optional<TT;>;

  final java.util.Optional<T> blockingGet(long, java.util.concurrent.TimeUnit);
    descriptor: (JLjava/util/concurrent/TimeUnit;)Ljava/util/Optional;
    flags: (0x0010) ACC_FINAL
    Code:
      stack=5, locals=6, args_size=3
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
        start local 1 // long timeout
        start local 3 // java.util.concurrent.TimeUnit unit
         0: .line 155
            invokestatic reactor.core.scheduler.Schedulers.isInNonBlockingThread:()Z
            ifeq 2
         1: .line 156
            new java.lang.IllegalStateException
            dup
            new java.lang.StringBuilder
            dup
            ldc "blockOptional() is blocking, which is not supported in thread "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic java.lang.Thread.currentThread:()Ljava/lang/Thread;
            invokevirtual java.lang.Thread.getName:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 158
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.getCount:()J
            lconst_0
            lcmp
            ifeq 11
         3: .line 160
            aload 0 /* this */
            lload 1 /* timeout */
            aload 3 /* unit */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.await:(JLjava/util/concurrent/TimeUnit;)Z
            ifne 11
         4: .line 161
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.dispose:()V
         5: .line 162
            new java.lang.IllegalStateException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Timeout on blocking read for "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            lload 1 /* timeout */
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            ldc " "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 3 /* unit */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         6: .line 165
      StackMap locals:
      StackMap stack: java.lang.InterruptedException
            astore 4 /* ex */
        start local 4 // java.lang.InterruptedException ex
         7: .line 166
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.dispose:()V
         8: .line 167
            aload 4 /* ex */
            invokestatic reactor.core.Exceptions.propagate:(Ljava/lang/Throwable;)Ljava/lang/RuntimeException;
            astore 5 /* re */
        start local 5 // java.lang.RuntimeException re
         9: .line 169
            aload 5 /* re */
            new java.lang.Exception
            dup
            ldc "#blockOptional(timeout) has been interrupted"
            invokespecial java.lang.Exception.<init>:(Ljava/lang/String;)V
            invokevirtual java.lang.RuntimeException.addSuppressed:(Ljava/lang/Throwable;)V
        10: .line 170
            aload 5 /* re */
            athrow
        end local 5 // java.lang.RuntimeException re
        end local 4 // java.lang.InterruptedException ex
        11: .line 174
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.error:Ljava/lang/Throwable;
            astore 4 /* e */
        start local 4 // java.lang.Throwable e
        12: .line 175
            aload 4 /* e */
            ifnull 16
        13: .line 176
            aload 4 /* e */
            invokestatic reactor.core.Exceptions.propagate:(Ljava/lang/Throwable;)Ljava/lang/RuntimeException;
            astore 5 /* re */
        start local 5 // java.lang.RuntimeException re
        14: .line 178
            aload 5 /* re */
            new java.lang.Exception
            dup
            ldc "#block terminated with an error"
            invokespecial java.lang.Exception.<init>:(Ljava/lang/String;)V
            invokevirtual java.lang.RuntimeException.addSuppressed:(Ljava/lang/Throwable;)V
        15: .line 179
            aload 5 /* re */
            athrow
        end local 5 // java.lang.RuntimeException re
        16: .line 181
      StackMap locals: java.lang.Throwable
      StackMap stack:
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.value:Ljava/lang/Object;
            invokestatic java.util.Optional.ofNullable:(Ljava/lang/Object;)Ljava/util/Optional;
            areturn
        end local 4 // java.lang.Throwable e
        end local 3 // java.util.concurrent.TimeUnit unit
        end local 1 // long timeout
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   17     0     this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;
            0   17     1  timeout  J
            0   17     3     unit  Ljava/util/concurrent/TimeUnit;
            7   11     4       ex  Ljava/lang/InterruptedException;
            9   11     5       re  Ljava/lang/RuntimeException;
           12   17     4        e  Ljava/lang/Throwable;
           14   16     5       re  Ljava/lang/RuntimeException;
      Exception table:
        from    to  target  type
           3     6       6  Class java.lang.InterruptedException
    Signature: (JLjava/util/concurrent/TimeUnit;)Ljava/util/Optional<TT;>;
    MethodParameters:
         Name  Flags
      timeout  
      unit     

  public java.lang.Object scanUnsafe(reactor.core.Scannable$Attr);
    descriptor: (Lreactor/core/Scannable$Attr;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
        start local 1 // reactor.core.Scannable$Attr key
         0: .line 187
            aload 1 /* key */
            getstatic reactor.core.Scannable$Attr.TERMINATED:Lreactor/core/Scannable$Attr;
            if_acmpne 2
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.getCount:()J
            lconst_0
            lcmp
            ifne 1
            iconst_1
            invokestatic java.lang.Boolean.valueOf:(Z)Ljava/lang/Boolean;
            areturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            invokestatic java.lang.Boolean.valueOf:(Z)Ljava/lang/Boolean;
            areturn
         2: .line 188
      StackMap locals:
      StackMap stack:
            aload 1 /* key */
            getstatic reactor.core.Scannable$Attr.PARENT:Lreactor/core/Scannable$Attr;
            if_acmpne 3
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.s:Lorg/reactivestreams/Subscription;
            areturn
         3: .line 189
      StackMap locals:
      StackMap stack:
            aload 1 /* key */
            getstatic reactor.core.Scannable$Attr.CANCELLED:Lreactor/core/Scannable$Attr;
            if_acmpne 4
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.cancelled:Z
            invokestatic java.lang.Boolean.valueOf:(Z)Ljava/lang/Boolean;
            areturn
         4: .line 190
      StackMap locals:
      StackMap stack:
            aload 1 /* key */
            getstatic reactor.core.Scannable$Attr.ERROR:Lreactor/core/Scannable$Attr;
            if_acmpne 5
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.error:Ljava/lang/Throwable;
            areturn
         5: .line 191
      StackMap locals:
      StackMap stack:
            aload 1 /* key */
            getstatic reactor.core.Scannable$Attr.PREFETCH:Lreactor/core/Scannable$Attr;
            if_acmpne 6
            ldc 2147483647
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            areturn
         6: .line 192
      StackMap locals:
      StackMap stack:
            aload 1 /* key */
            getstatic reactor.core.Scannable$Attr.RUN_STYLE:Lreactor/core/Scannable$Attr;
            if_acmpne 7
            getstatic reactor.core.Scannable$Attr$RunStyle.SYNC:Lreactor/core/Scannable$Attr$RunStyle;
            areturn
         7: .line 194
      StackMap locals:
      StackMap stack:
            aconst_null
            areturn
        end local 1 // reactor.core.Scannable$Attr key
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;
            0    8     1   key  Lreactor/core/Scannable$Attr;
    RuntimeVisibleAnnotations: 
      reactor.util.annotation.Nullable()
    MethodParameters:
      Name  Flags
      key   

  public boolean isDisposed();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
         0: .line 199
            aload 0 /* this */
            getfield reactor.core.publisher.BlockingOptionalMonoSubscriber.cancelled:Z
            ifne 1
            aload 0 /* this */
            invokevirtual reactor.core.publisher.BlockingOptionalMonoSubscriber.getCount:()J
            lconst_0
            lcmp
            ifeq 1
            iconst_0
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_1
            ireturn
        end local 0 // reactor.core.publisher.BlockingOptionalMonoSubscriber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lreactor/core/publisher/BlockingOptionalMonoSubscriber<TT;>;
}
Signature: <T:Ljava/lang/Object;>Ljava/util/concurrent/CountDownLatch;Lreactor/core/publisher/InnerConsumer<TT;>;Lreactor/core/Disposable;
SourceFile: "BlockingOptionalMonoSubscriber.java"
InnerClasses:
  public Attr = reactor.core.Scannable$Attr of reactor.core.Scannable
  public final RunStyle = reactor.core.Scannable$Attr$RunStyle of reactor.core.Scannable$Attr