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. 
class org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException extends java.security.cert.CRLException
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException
  super_class: java.security.cert.CRLException
{
  java.lang.Throwable cause;
    descriptor: Ljava/lang/Throwable;
    flags: (0x0000) 

  void <init>(java.lang.String, java.lang.Throwable);
    descriptor: (Ljava/lang/String;Ljava/lang/Throwable;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException this
        start local 1 // java.lang.String message
        start local 2 // java.lang.Throwable cause
         0: .line 440
            aload 0 /* this */
            aload 1 /* message */
            invokespecial java.security.cert.CRLException.<init>:(Ljava/lang/String;)V
         1: .line 441
            aload 0 /* this */
            aload 2 /* cause */
            putfield org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException.cause:Ljava/lang/Throwable;
         2: .line 442
            return
        end local 2 // java.lang.Throwable cause
        end local 1 // java.lang.String message
        end local 0 // org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0     this  Lorg/bouncycastle/x509/X509V2CRLGenerator$ExtCRLException;
            0    3     1  message  Ljava/lang/String;
            0    3     2    cause  Ljava/lang/Throwable;
    MethodParameters:
         Name  Flags
      message  
      cause    

  public java.lang.Throwable getCause();
    descriptor: ()Ljava/lang/Throwable;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException this
         0: .line 446
            aload 0 /* this */
            getfield org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException.cause:Ljava/lang/Throwable;
            areturn
        end local 0 // org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/x509/X509V2CRLGenerator$ExtCRLException;
}
SourceFile: "X509V2CRLGenerator.java"
NestHost: org.bouncycastle.x509.X509V2CRLGenerator
InnerClasses:
  private ExtCRLException = org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException of org.bouncycastle.x509.X509V2CRLGenerator