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 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
class org.bouncycastle.crypto.util.DerUtil$1 extends java.lang.IllegalStateException
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.bouncycastle.crypto.util.DerUtil$1
  super_class: java.lang.IllegalStateException
{
  private final java.io.IOException val$e;
    descriptor: Ljava/io/IOException;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(java.lang.String, java.io.IOException);
    descriptor: (Ljava/lang/String;Ljava/io/IOException;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.bouncycastle.crypto.util.DerUtil$1 this
        start local 1 // java.lang.String $anonymous0
         0: .line 30
            aload 0 /* this */
            aload 2
            putfield org.bouncycastle.crypto.util.DerUtil$1.val$e:Ljava/io/IOException;
            aload 0 /* this */
            aload 1 /* $anonymous0 */
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            return
        end local 1 // java.lang.String $anonymous0
        end local 0 // org.bouncycastle.crypto.util.DerUtil$1 this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    1     0         this  Lorg/bouncycastle/crypto/util/DerUtil$1;
            0    1     1  $anonymous0  Ljava/lang/String;
    MethodParameters:
             Name  Flags
      $anonymous0  
      val$e        final

  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.crypto.util.DerUtil$1 this
         0: .line 34
            aload 0 /* this */
            getfield org.bouncycastle.crypto.util.DerUtil$1.val$e:Ljava/io/IOException;
            areturn
        end local 0 // org.bouncycastle.crypto.util.DerUtil$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/crypto/util/DerUtil$1;
}
SourceFile: "DerUtil.java"
EnclosingMethod: org.bouncycastle.crypto.util.DerUtil.toByteArray:(Lorg/bouncycastle/asn1/ASN1Primitive;)[B
NestHost: org.bouncycastle.crypto.util.DerUtil
InnerClasses:
  org.bouncycastle.crypto.util.DerUtil$1