https://tomcat.apache.org/: Common code shared by multiple Tomcat components 
public class org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor implements java.util.concurrent.ScheduledExecutorService
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor
  super_class: java.lang.Object
{
  protected final java.util.concurrent.ScheduledExecutorService executor;
    descriptor: Ljava/util/concurrent/ScheduledExecutorService;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  public void <init>(java.util.concurrent.ScheduledExecutorService);
    descriptor: (Ljava/util/concurrent/ScheduledExecutorService;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.util.concurrent.ScheduledExecutorService executor
         0: .line 41
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 42
            aload 0 /* this */
            aload 1 /* executor */
            putfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
         2: .line 43
            return
        end local 1 // java.util.concurrent.ScheduledExecutorService executor
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    3     1  executor  Ljava/util/concurrent/ScheduledExecutorService;
    MethodParameters:
          Name  Flags
      executor  

  public void shutdown();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=1, args_size=1
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
         0: .line 48
            return
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;

  public java.util.List<java.lang.Runnable> shutdownNow();
    descriptor: ()Ljava/util/List;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
         0: .line 53
            aconst_null
            areturn
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
    Signature: ()Ljava/util/List<Ljava/lang/Runnable;>;

  public boolean isShutdown();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
         0: .line 58
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            invokeinterface java.util.concurrent.ScheduledExecutorService.isShutdown:()Z
            ireturn
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;

  public boolean isTerminated();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
         0: .line 63
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            invokeinterface java.util.concurrent.ScheduledExecutorService.isTerminated:()Z
            ireturn
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;

  public boolean awaitTermination(long, java.util.concurrent.TimeUnit);
    descriptor: (JLjava/util/concurrent/TimeUnit;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // long timeout
        start local 3 // java.util.concurrent.TimeUnit unit
         0: .line 69
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            lload 1 /* timeout */
            aload 3 /* unit */
            invokeinterface java.util.concurrent.ScheduledExecutorService.awaitTermination:(JLjava/util/concurrent/TimeUnit;)Z
            ireturn
        end local 3 // java.util.concurrent.TimeUnit unit
        end local 1 // long timeout
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1  timeout  J
            0    1     3     unit  Ljava/util/concurrent/TimeUnit;
    Exceptions:
      throws java.lang.InterruptedException
    MethodParameters:
         Name  Flags
      timeout  
      unit     

  public <T> java.util.concurrent.Future<T> submit(java.util.concurrent.Callable<T>);
    descriptor: (Ljava/util/concurrent/Callable;)Ljava/util/concurrent/Future;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.util.concurrent.Callable task
         0: .line 74
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* task */
            invokeinterface java.util.concurrent.ScheduledExecutorService.submit:(Ljava/util/concurrent/Callable;)Ljava/util/concurrent/Future;
            areturn
        end local 1 // java.util.concurrent.Callable task
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1  task  Ljava/util/concurrent/Callable<TT;>;
    Signature: <T:Ljava/lang/Object;>(Ljava/util/concurrent/Callable<TT;>;)Ljava/util/concurrent/Future<TT;>;
    MethodParameters:
      Name  Flags
      task  

  public <T> java.util.concurrent.Future<T> submit(java.lang.Runnable, T);
    descriptor: (Ljava/lang/Runnable;Ljava/lang/Object;)Ljava/util/concurrent/Future;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.lang.Runnable task
        start local 2 // java.lang.Object result
         0: .line 79
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* task */
            aload 2 /* result */
            invokeinterface java.util.concurrent.ScheduledExecutorService.submit:(Ljava/lang/Runnable;Ljava/lang/Object;)Ljava/util/concurrent/Future;
            areturn
        end local 2 // java.lang.Object result
        end local 1 // java.lang.Runnable task
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1    task  Ljava/lang/Runnable;
            0    1     2  result  TT;
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Runnable;TT;)Ljava/util/concurrent/Future<TT;>;
    MethodParameters:
        Name  Flags
      task    
      result  

  public java.util.concurrent.Future<?> submit(java.lang.Runnable);
    descriptor: (Ljava/lang/Runnable;)Ljava/util/concurrent/Future;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.lang.Runnable task
         0: .line 84
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* task */
            invokeinterface java.util.concurrent.ScheduledExecutorService.submit:(Ljava/lang/Runnable;)Ljava/util/concurrent/Future;
            areturn
        end local 1 // java.lang.Runnable task
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1  task  Ljava/lang/Runnable;
    Signature: (Ljava/lang/Runnable;)Ljava/util/concurrent/Future<*>;
    MethodParameters:
      Name  Flags
      task  

  public <T> java.util.List<java.util.concurrent.Future<T>> invokeAll(java.util.Collection<? extends java.util.concurrent.Callable<T>>);
    descriptor: (Ljava/util/Collection;)Ljava/util/List;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.util.Collection tasks
         0: .line 90
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* tasks */
            invokeinterface java.util.concurrent.ScheduledExecutorService.invokeAll:(Ljava/util/Collection;)Ljava/util/List;
            areturn
        end local 1 // java.util.Collection tasks
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1  tasks  Ljava/util/Collection<+Ljava/util/concurrent/Callable<TT;>;>;
    Exceptions:
      throws java.lang.InterruptedException
    Signature: <T:Ljava/lang/Object;>(Ljava/util/Collection<+Ljava/util/concurrent/Callable<TT;>;>;)Ljava/util/List<Ljava/util/concurrent/Future<TT;>;>;
    MethodParameters:
       Name  Flags
      tasks  

  public <T> java.util.List<java.util.concurrent.Future<T>> invokeAll(java.util.Collection<? extends java.util.concurrent.Callable<T>>, long, java.util.concurrent.TimeUnit);
    descriptor: (Ljava/util/Collection;JLjava/util/concurrent/TimeUnit;)Ljava/util/List;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=4
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.util.Collection tasks
        start local 2 // long timeout
        start local 4 // java.util.concurrent.TimeUnit unit
         0: .line 96
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* tasks */
            lload 2 /* timeout */
            aload 4 /* unit */
            invokeinterface java.util.concurrent.ScheduledExecutorService.invokeAll:(Ljava/util/Collection;JLjava/util/concurrent/TimeUnit;)Ljava/util/List;
            areturn
        end local 4 // java.util.concurrent.TimeUnit unit
        end local 2 // long timeout
        end local 1 // java.util.Collection tasks
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1    tasks  Ljava/util/Collection<+Ljava/util/concurrent/Callable<TT;>;>;
            0    1     2  timeout  J
            0    1     4     unit  Ljava/util/concurrent/TimeUnit;
    Exceptions:
      throws java.lang.InterruptedException
    Signature: <T:Ljava/lang/Object;>(Ljava/util/Collection<+Ljava/util/concurrent/Callable<TT;>;>;JLjava/util/concurrent/TimeUnit;)Ljava/util/List<Ljava/util/concurrent/Future<TT;>;>;
    MethodParameters:
         Name  Flags
      tasks    
      timeout  
      unit     

  public <T> T invokeAny(java.util.Collection<? extends java.util.concurrent.Callable<T>>);
    descriptor: (Ljava/util/Collection;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.util.Collection tasks
         0: .line 102
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* tasks */
            invokeinterface java.util.concurrent.ScheduledExecutorService.invokeAny:(Ljava/util/Collection;)Ljava/lang/Object;
            areturn
        end local 1 // java.util.Collection tasks
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1  tasks  Ljava/util/Collection<+Ljava/util/concurrent/Callable<TT;>;>;
    Exceptions:
      throws java.lang.InterruptedException, java.util.concurrent.ExecutionException
    Signature: <T:Ljava/lang/Object;>(Ljava/util/Collection<+Ljava/util/concurrent/Callable<TT;>;>;)TT;
    MethodParameters:
       Name  Flags
      tasks  

  public <T> T invokeAny(java.util.Collection<? extends java.util.concurrent.Callable<T>>, long, java.util.concurrent.TimeUnit);
    descriptor: (Ljava/util/Collection;JLjava/util/concurrent/TimeUnit;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=4
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.util.Collection tasks
        start local 2 // long timeout
        start local 4 // java.util.concurrent.TimeUnit unit
         0: .line 109
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* tasks */
            lload 2 /* timeout */
            aload 4 /* unit */
            invokeinterface java.util.concurrent.ScheduledExecutorService.invokeAny:(Ljava/util/Collection;JLjava/util/concurrent/TimeUnit;)Ljava/lang/Object;
            areturn
        end local 4 // java.util.concurrent.TimeUnit unit
        end local 2 // long timeout
        end local 1 // java.util.Collection tasks
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1    tasks  Ljava/util/Collection<+Ljava/util/concurrent/Callable<TT;>;>;
            0    1     2  timeout  J
            0    1     4     unit  Ljava/util/concurrent/TimeUnit;
    Exceptions:
      throws java.lang.InterruptedException, java.util.concurrent.ExecutionException, java.util.concurrent.TimeoutException
    Signature: <T:Ljava/lang/Object;>(Ljava/util/Collection<+Ljava/util/concurrent/Callable<TT;>;>;JLjava/util/concurrent/TimeUnit;)TT;
    MethodParameters:
         Name  Flags
      tasks    
      timeout  
      unit     

  public void execute(java.lang.Runnable);
    descriptor: (Ljava/lang/Runnable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.lang.Runnable command
         0: .line 114
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* command */
            invokeinterface java.util.concurrent.ScheduledExecutorService.execute:(Ljava/lang/Runnable;)V
         1: .line 115
            return
        end local 1 // java.lang.Runnable command
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    2     1  command  Ljava/lang/Runnable;
    MethodParameters:
         Name  Flags
      command  

  public java.util.concurrent.ScheduledFuture<?> schedule(java.lang.Runnable, long, java.util.concurrent.TimeUnit);
    descriptor: (Ljava/lang/Runnable;JLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=4
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.lang.Runnable command
        start local 2 // long delay
        start local 4 // java.util.concurrent.TimeUnit unit
         0: .line 120
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* command */
            lload 2 /* delay */
            aload 4 /* unit */
            invokeinterface java.util.concurrent.ScheduledExecutorService.schedule:(Ljava/lang/Runnable;JLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
            areturn
        end local 4 // java.util.concurrent.TimeUnit unit
        end local 2 // long delay
        end local 1 // java.lang.Runnable command
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1  command  Ljava/lang/Runnable;
            0    1     2    delay  J
            0    1     4     unit  Ljava/util/concurrent/TimeUnit;
    Signature: (Ljava/lang/Runnable;JLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture<*>;
    MethodParameters:
         Name  Flags
      command  
      delay    
      unit     

  public <V> java.util.concurrent.ScheduledFuture<V> schedule(java.util.concurrent.Callable<V>, long, java.util.concurrent.TimeUnit);
    descriptor: (Ljava/util/concurrent/Callable;JLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=4
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.util.concurrent.Callable callable
        start local 2 // long delay
        start local 4 // java.util.concurrent.TimeUnit unit
         0: .line 126
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* callable */
            lload 2 /* delay */
            aload 4 /* unit */
            invokeinterface java.util.concurrent.ScheduledExecutorService.schedule:(Ljava/util/concurrent/Callable;JLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
            areturn
        end local 4 // java.util.concurrent.TimeUnit unit
        end local 2 // long delay
        end local 1 // java.util.concurrent.Callable callable
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1  callable  Ljava/util/concurrent/Callable<TV;>;
            0    1     2     delay  J
            0    1     4      unit  Ljava/util/concurrent/TimeUnit;
    Signature: <V:Ljava/lang/Object;>(Ljava/util/concurrent/Callable<TV;>;JLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture<TV;>;
    MethodParameters:
          Name  Flags
      callable  
      delay     
      unit      

  public java.util.concurrent.ScheduledFuture<?> scheduleAtFixedRate(java.lang.Runnable, long, long, java.util.concurrent.TimeUnit);
    descriptor: (Ljava/lang/Runnable;JJLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=7, args_size=5
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.lang.Runnable command
        start local 2 // long initialDelay
        start local 4 // long period
        start local 6 // java.util.concurrent.TimeUnit unit
         0: .line 132
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* command */
            lload 2 /* initialDelay */
            lload 4 /* period */
            aload 6 /* unit */
            invokeinterface java.util.concurrent.ScheduledExecutorService.scheduleAtFixedRate:(Ljava/lang/Runnable;JJLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
            areturn
        end local 6 // java.util.concurrent.TimeUnit unit
        end local 4 // long period
        end local 2 // long initialDelay
        end local 1 // java.lang.Runnable command
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    1     0          this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1       command  Ljava/lang/Runnable;
            0    1     2  initialDelay  J
            0    1     4        period  J
            0    1     6          unit  Ljava/util/concurrent/TimeUnit;
    Signature: (Ljava/lang/Runnable;JJLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture<*>;
    MethodParameters:
              Name  Flags
      command       
      initialDelay  
      period        
      unit          

  public java.util.concurrent.ScheduledFuture<?> scheduleWithFixedDelay(java.lang.Runnable, long, long, java.util.concurrent.TimeUnit);
    descriptor: (Ljava/lang/Runnable;JJLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=7, args_size=5
        start local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
        start local 1 // java.lang.Runnable command
        start local 2 // long initialDelay
        start local 4 // long delay
        start local 6 // java.util.concurrent.TimeUnit unit
         0: .line 138
            aload 0 /* this */
            getfield org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 1 /* command */
            lload 2 /* initialDelay */
            lload 4 /* delay */
            aload 6 /* unit */
            invokeinterface java.util.concurrent.ScheduledExecutorService.scheduleWithFixedDelay:(Ljava/lang/Runnable;JJLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
            areturn
        end local 6 // java.util.concurrent.TimeUnit unit
        end local 4 // long delay
        end local 2 // long initialDelay
        end local 1 // java.lang.Runnable command
        end local 0 // org.apache.tomcat.util.threads.ScheduledThreadPoolExecutor this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    1     0          this  Lorg/apache/tomcat/util/threads/ScheduledThreadPoolExecutor;
            0    1     1       command  Ljava/lang/Runnable;
            0    1     2  initialDelay  J
            0    1     4         delay  J
            0    1     6          unit  Ljava/util/concurrent/TimeUnit;
    Signature: (Ljava/lang/Runnable;JJLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture<*>;
    MethodParameters:
              Name  Flags
      command       
      initialDelay  
      delay         
      unit          
}
SourceFile: "ScheduledThreadPoolExecutor.java"