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 class com.datastax.oss.driver.internal.core.os.EmptyLibc implements com.datastax.oss.driver.internal.core.os.Libc
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.datastax.oss.driver.internal.core.os.EmptyLibc
  super_class: java.lang.Object
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.datastax.oss.driver.internal.core.os.EmptyLibc this
         0: .line 21
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.datastax.oss.driver.internal.core.os.EmptyLibc this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/datastax/oss/driver/internal/core/os/EmptyLibc;

  public boolean available();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.datastax.oss.driver.internal.core.os.EmptyLibc this
         0: .line 25
            iconst_0
            ireturn
        end local 0 // com.datastax.oss.driver.internal.core.os.EmptyLibc this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/datastax/oss/driver/internal/core/os/EmptyLibc;

  public java.util.Optional<java.lang.Long> gettimeofday();
    descriptor: ()Ljava/util/Optional;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.datastax.oss.driver.internal.core.os.EmptyLibc this
         0: .line 30
            invokestatic java.util.Optional.empty:()Ljava/util/Optional;
            areturn
        end local 0 // com.datastax.oss.driver.internal.core.os.EmptyLibc this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/datastax/oss/driver/internal/core/os/EmptyLibc;
    Signature: ()Ljava/util/Optional<Ljava/lang/Long;>;

  public java.util.Optional<java.lang.Integer> getpid();
    descriptor: ()Ljava/util/Optional;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.datastax.oss.driver.internal.core.os.EmptyLibc this
         0: .line 35
            invokestatic java.util.Optional.empty:()Ljava/util/Optional;
            areturn
        end local 0 // com.datastax.oss.driver.internal.core.os.EmptyLibc this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/datastax/oss/driver/internal/core/os/EmptyLibc;
    Signature: ()Ljava/util/Optional<Ljava/lang/Integer;>;
}
SourceFile: "EmptyLibc.java"