http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
public abstract class org.bouncycastle.cms.RecipientId implements org.bouncycastle.util.Selector
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.bouncycastle.cms.RecipientId
  super_class: java.lang.Object
{
  public static final int keyTrans;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 0

  public static final int kek;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 1

  public static final int keyAgree;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 2

  public static final int password;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 3

  private final int type;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  protected void <init>(int);
    descriptor: (I)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.cms.RecipientId this
        start local 1 // int type
         0: .line 15
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 17
            aload 0 /* this */
            iload 1 /* type */
            putfield org.bouncycastle.cms.RecipientId.type:I
         2: .line 18
            return
        end local 1 // int type
        end local 0 // org.bouncycastle.cms.RecipientId this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/bouncycastle/cms/RecipientId;
            0    3     1  type  I
    MethodParameters:
      Name  Flags
      type  

  public int getType();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.cms.RecipientId this
         0: .line 27
            aload 0 /* this */
            getfield org.bouncycastle.cms.RecipientId.type:I
            ireturn
        end local 0 // org.bouncycastle.cms.RecipientId this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/cms/RecipientId;

  public abstract java.lang.Object clone();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "RecipientId.java"