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.jce.X509KeyUsage extends org.bouncycastle.asn1.ASN1Encodable
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.jce.X509KeyUsage
  super_class: org.bouncycastle.asn1.ASN1Encodable
{
  public static final int digitalSignature;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 128

  public static final int nonRepudiation;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 64

  public static final int keyEncipherment;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 32

  public static final int dataEncipherment;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 16

  public static final int keyAgreement;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 8

  public static final int keyCertSign;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 4

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

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

  public static final int decipherOnly;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 32768

  private int usage;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  public void <init>(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.jce.X509KeyUsage this
        start local 1 // int usage
         0: .line 47
            aload 0 /* this */
            invokespecial org.bouncycastle.asn1.ASN1Encodable.<init>:()V
         1: .line 38
            aload 0 /* this */
            iconst_0
            putfield org.bouncycastle.jce.X509KeyUsage.usage:I
         2: .line 50
            aload 0 /* this */
            iload 1 /* usage */
            putfield org.bouncycastle.jce.X509KeyUsage.usage:I
         3: .line 51
            return
        end local 1 // int usage
        end local 0 // org.bouncycastle.jce.X509KeyUsage this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0   this  Lorg/bouncycastle/jce/X509KeyUsage;
            0    4     1  usage  I
    MethodParameters:
       Name  Flags
      usage  

  public org.bouncycastle.asn1.DERObject toASN1Object();
    descriptor: ()Lorg/bouncycastle/asn1/DERObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.bouncycastle.jce.X509KeyUsage this
         0: .line 55
            new org.bouncycastle.asn1.x509.KeyUsage
            dup
            aload 0 /* this */
            getfield org.bouncycastle.jce.X509KeyUsage.usage:I
            invokespecial org.bouncycastle.asn1.x509.KeyUsage.<init>:(I)V
            areturn
        end local 0 // org.bouncycastle.jce.X509KeyUsage this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/jce/X509KeyUsage;
}
SourceFile: "X509KeyUsage.java"