https://github.com/datastax/native-protocol: A set of Java types representing the frames and messages of the Apache Cassandra® native protocol, with the associated serialization and deserialization logic (this is a third-party implementation, not related to the Apache Cassandra project)
  • Various (DataStax) 
public class com.datastax.oss.protocol.internal.util.Flags
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.datastax.oss.protocol.internal.util.Flags
  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.protocol.internal.util.Flags this
         0: .line 18
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.datastax.oss.protocol.internal.util.Flags this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/datastax/oss/protocol/internal/util/Flags;

  public static boolean contains(int, int);
    descriptor: (II)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // int flags
        start local 1 // int mask
         0: .line 21
            iload 0 /* flags */
            iload 1 /* mask */
            iand
            iload 1 /* mask */
            if_icmpne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 1 // int mask
        end local 0 // int flags
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0  flags  I
            0    2     1   mask  I
    MethodParameters:
       Name  Flags
      flags  
      mask   

  public static int add(int, int);
    descriptor: (II)I
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // int flags
        start local 1 // int mask
         0: .line 25
            iload 0 /* flags */
            iload 1 /* mask */
            ior
            ireturn
        end local 1 // int mask
        end local 0 // int flags
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0  flags  I
            0    1     1   mask  I
    MethodParameters:
       Name  Flags
      flags  
      mask   
}
SourceFile: "Flags.java"