http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5. 
public class org.bouncycastle.asn1.smime.SMIMECapability extends org.bouncycastle.asn1.ASN1Encodable
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.asn1.smime.SMIMECapability
  super_class: org.bouncycastle.asn1.ASN1Encodable
{
  public static final org.bouncycastle.asn1.DERObjectIdentifier preferSignedData;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.bouncycastle.asn1.DERObjectIdentifier canNotDecryptAny;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.bouncycastle.asn1.DERObjectIdentifier sMIMECapabilitiesVersions;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.bouncycastle.asn1.DERObjectIdentifier dES_CBC;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.bouncycastle.asn1.DERObjectIdentifier dES_EDE3_CBC;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.bouncycastle.asn1.DERObjectIdentifier rC2_CBC;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.bouncycastle.asn1.DERObjectIdentifier aES128_CBC;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.bouncycastle.asn1.DERObjectIdentifier aES192_CBC;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.bouncycastle.asn1.DERObjectIdentifier aES256_CBC;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  private org.bouncycastle.asn1.DERObjectIdentifier capabilityID;
    descriptor: Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0002) ACC_PRIVATE

  private org.bouncycastle.asn1.DEREncodable parameters;
    descriptor: Lorg/bouncycastle/asn1/DEREncodable;
    flags: (0x0002) ACC_PRIVATE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 19
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.preferSignedData:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.preferSignedData:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         1: .line 20
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.canNotDecryptAny:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.canNotDecryptAny:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         2: .line 21
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.sMIMECapabilitiesVersions:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.sMIMECapabilitiesVersions:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         3: .line 26
            new org.bouncycastle.asn1.DERObjectIdentifier
            dup
            ldc "1.3.14.3.2.7"
            invokespecial org.bouncycastle.asn1.DERObjectIdentifier.<init>:(Ljava/lang/String;)V
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.dES_CBC:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         4: .line 27
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.des_EDE3_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.dES_EDE3_CBC:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         5: .line 28
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.RC2_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.rC2_CBC:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         6: .line 29
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes128_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.aES128_CBC:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         7: .line 30
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes192_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.aES192_CBC:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         8: .line 31
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_aes256_CBC:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            putstatic org.bouncycastle.asn1.smime.SMIMECapability.aES256_CBC:Lorg/bouncycastle/asn1/DERObjectIdentifier;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.bouncycastle.asn1.ASN1Sequence);
    descriptor: (Lorg/bouncycastle/asn1/ASN1Sequence;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
        start local 1 // org.bouncycastle.asn1.ASN1Sequence seq
         0: .line 36
            aload 0 /* this */
            invokespecial org.bouncycastle.asn1.ASN1Encodable.<init>:()V
         1: .line 39
            aload 0 /* this */
            aload 1 /* seq */
            iconst_0
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.getObjectAt:(I)Lorg/bouncycastle/asn1/DEREncodable;
            checkcast org.bouncycastle.asn1.DERObjectIdentifier
            putfield org.bouncycastle.asn1.smime.SMIMECapability.capabilityID:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         2: .line 41
            aload 1 /* seq */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.size:()I
            iconst_1
            if_icmple 4
         3: .line 43
            aload 0 /* this */
            aload 1 /* seq */
            iconst_1
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.getObjectAt:(I)Lorg/bouncycastle/asn1/DEREncodable;
            checkcast org.bouncycastle.asn1.DERObject
            putfield org.bouncycastle.asn1.smime.SMIMECapability.parameters:Lorg/bouncycastle/asn1/DEREncodable;
         4: .line 45
      StackMap locals: org.bouncycastle.asn1.smime.SMIMECapability org.bouncycastle.asn1.ASN1Sequence
      StackMap stack:
            return
        end local 1 // org.bouncycastle.asn1.ASN1Sequence seq
        end local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/bouncycastle/asn1/smime/SMIMECapability;
            0    5     1   seq  Lorg/bouncycastle/asn1/ASN1Sequence;
    MethodParameters:
      Name  Flags
      seq   

  public void <init>(org.bouncycastle.asn1.DERObjectIdentifier, org.bouncycastle.asn1.DEREncodable);
    descriptor: (Lorg/bouncycastle/asn1/DERObjectIdentifier;Lorg/bouncycastle/asn1/DEREncodable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
        start local 1 // org.bouncycastle.asn1.DERObjectIdentifier capabilityID
        start local 2 // org.bouncycastle.asn1.DEREncodable parameters
         0: .line 47
            aload 0 /* this */
            invokespecial org.bouncycastle.asn1.ASN1Encodable.<init>:()V
         1: .line 51
            aload 0 /* this */
            aload 1 /* capabilityID */
            putfield org.bouncycastle.asn1.smime.SMIMECapability.capabilityID:Lorg/bouncycastle/asn1/DERObjectIdentifier;
         2: .line 52
            aload 0 /* this */
            aload 2 /* parameters */
            putfield org.bouncycastle.asn1.smime.SMIMECapability.parameters:Lorg/bouncycastle/asn1/DEREncodable;
         3: .line 53
            return
        end local 2 // org.bouncycastle.asn1.DEREncodable parameters
        end local 1 // org.bouncycastle.asn1.DERObjectIdentifier capabilityID
        end local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    4     0          this  Lorg/bouncycastle/asn1/smime/SMIMECapability;
            0    4     1  capabilityID  Lorg/bouncycastle/asn1/DERObjectIdentifier;
            0    4     2    parameters  Lorg/bouncycastle/asn1/DEREncodable;
    MethodParameters:
              Name  Flags
      capabilityID  
      parameters    

  public static org.bouncycastle.asn1.smime.SMIMECapability getInstance(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lorg/bouncycastle/asn1/smime/SMIMECapability;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.Object obj
         0: .line 58
            aload 0 /* obj */
            ifnull 1
            aload 0 /* obj */
            instanceof org.bouncycastle.asn1.smime.SMIMECapability
            ifeq 2
         1: .line 60
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            checkcast org.bouncycastle.asn1.smime.SMIMECapability
            areturn
         2: .line 63
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            instanceof org.bouncycastle.asn1.ASN1Sequence
            ifeq 4
         3: .line 65
            new org.bouncycastle.asn1.smime.SMIMECapability
            dup
            aload 0 /* obj */
            checkcast org.bouncycastle.asn1.ASN1Sequence
            invokespecial org.bouncycastle.asn1.smime.SMIMECapability.<init>:(Lorg/bouncycastle/asn1/ASN1Sequence;)V
            areturn
         4: .line 68
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            ldc "Invalid SMIMECapability"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // java.lang.Object obj
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0   obj  Ljava/lang/Object;
    MethodParameters:
      Name  Flags
      obj   

  public org.bouncycastle.asn1.DERObjectIdentifier getCapabilityID();
    descriptor: ()Lorg/bouncycastle/asn1/DERObjectIdentifier;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
         0: .line 73
            aload 0 /* this */
            getfield org.bouncycastle.asn1.smime.SMIMECapability.capabilityID:Lorg/bouncycastle/asn1/DERObjectIdentifier;
            areturn
        end local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/smime/SMIMECapability;

  public org.bouncycastle.asn1.DEREncodable getParameters();
    descriptor: ()Lorg/bouncycastle/asn1/DEREncodable;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
         0: .line 78
            aload 0 /* this */
            getfield org.bouncycastle.asn1.smime.SMIMECapability.parameters:Lorg/bouncycastle/asn1/DEREncodable;
            areturn
        end local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/smime/SMIMECapability;

  public org.bouncycastle.asn1.DERObject toASN1Object();
    descriptor: ()Lorg/bouncycastle/asn1/DERObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
         0: .line 92
            new org.bouncycastle.asn1.ASN1EncodableVector
            dup
            invokespecial org.bouncycastle.asn1.ASN1EncodableVector.<init>:()V
            astore 1 /* v */
        start local 1 // org.bouncycastle.asn1.ASN1EncodableVector v
         1: .line 94
            aload 1 /* v */
            aload 0 /* this */
            getfield org.bouncycastle.asn1.smime.SMIMECapability.capabilityID:Lorg/bouncycastle/asn1/DERObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.ASN1EncodableVector.add:(Lorg/bouncycastle/asn1/DEREncodable;)V
         2: .line 96
            aload 0 /* this */
            getfield org.bouncycastle.asn1.smime.SMIMECapability.parameters:Lorg/bouncycastle/asn1/DEREncodable;
            ifnull 4
         3: .line 98
            aload 1 /* v */
            aload 0 /* this */
            getfield org.bouncycastle.asn1.smime.SMIMECapability.parameters:Lorg/bouncycastle/asn1/DEREncodable;
            invokevirtual org.bouncycastle.asn1.ASN1EncodableVector.add:(Lorg/bouncycastle/asn1/DEREncodable;)V
         4: .line 101
      StackMap locals: org.bouncycastle.asn1.ASN1EncodableVector
      StackMap stack:
            new org.bouncycastle.asn1.DERSequence
            dup
            aload 1 /* v */
            invokespecial org.bouncycastle.asn1.DERSequence.<init>:(Lorg/bouncycastle/asn1/ASN1EncodableVector;)V
            areturn
        end local 1 // org.bouncycastle.asn1.ASN1EncodableVector v
        end local 0 // org.bouncycastle.asn1.smime.SMIMECapability this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/bouncycastle/asn1/smime/SMIMECapability;
            1    5     1     v  Lorg/bouncycastle/asn1/ASN1EncodableVector;
}
SourceFile: "SMIMECapability.java"