https://github.com/datastax/java-driver/java-driver-core: A driver for Apache Cassandra(R) 2.1+ that works exclusively with the Cassandra Query Language version 3 (CQL3) and Cassandra's native protocol versions 3 and above.
  • Various (DataStax) 
public interface com.datastax.oss.driver.api.core.AsyncAutoCloseable extends java.lang.AutoCloseable
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.datastax.oss.driver.api.core.AsyncAutoCloseable
  super_class: java.lang.Object
{
  public abstract java.util.concurrent.CompletionStage<java.lang.Void> closeFuture();
    descriptor: ()Ljava/util/concurrent/CompletionStage;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/concurrent/CompletionStage<Ljava/lang/Void;>;
    RuntimeInvisibleAnnotations: 
      edu.umd.cs.findbugs.annotations.NonNull()

  public boolean isClosed();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.datastax.oss.driver.api.core.AsyncAutoCloseable this
         0: .line 44
            aload 0 /* this */
            invokeinterface com.datastax.oss.driver.api.core.AsyncAutoCloseable.closeFuture:()Ljava/util/concurrent/CompletionStage;
            invokeinterface java.util.concurrent.CompletionStage.toCompletableFuture:()Ljava/util/concurrent/CompletableFuture;
            invokevirtual java.util.concurrent.CompletableFuture.isDone:()Z
            ireturn
        end local 0 // com.datastax.oss.driver.api.core.AsyncAutoCloseable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/datastax/oss/driver/api/core/AsyncAutoCloseable;

  public abstract java.util.concurrent.CompletionStage<java.lang.Void> closeAsync();
    descriptor: ()Ljava/util/concurrent/CompletionStage;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/concurrent/CompletionStage<Ljava/lang/Void;>;
    RuntimeInvisibleAnnotations: 
      edu.umd.cs.findbugs.annotations.NonNull()

  public abstract java.util.concurrent.CompletionStage<java.lang.Void> forceCloseAsync();
    descriptor: ()Ljava/util/concurrent/CompletionStage;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/concurrent/CompletionStage<Ljava/lang/Void;>;
    RuntimeInvisibleAnnotations: 
      edu.umd.cs.findbugs.annotations.NonNull()

  public void close();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.datastax.oss.driver.api.core.AsyncAutoCloseable this
         0: .line 75
            invokestatic com.datastax.oss.driver.internal.core.util.concurrent.BlockingOperation.checkNotDriverThread:()V
         1: .line 76
            aload 0 /* this */
            invokeinterface com.datastax.oss.driver.api.core.AsyncAutoCloseable.closeAsync:()Ljava/util/concurrent/CompletionStage;
            invokeinterface java.util.concurrent.CompletionStage.toCompletableFuture:()Ljava/util/concurrent/CompletableFuture;
            invokestatic com.datastax.oss.driver.internal.core.util.concurrent.CompletableFutures.getUninterruptibly:(Ljava/util/concurrent/CompletionStage;)Ljava/lang/Object;
            pop
         2: .line 77
            return
        end local 0 // com.datastax.oss.driver.api.core.AsyncAutoCloseable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/datastax/oss/driver/api/core/AsyncAutoCloseable;
}
SourceFile: "AsyncAutoCloseable.java"