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. 
class org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 implements org.bouncycastle.eac.operator.EACSigner
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1
  super_class: java.lang.Object
{
  final org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder this$0;
    descriptor: Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private final org.bouncycastle.asn1.ASN1ObjectIdentifier val$usageOid;
    descriptor: Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  private final org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$SignatureOutputStream val$sigStream;
    descriptor: Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$SignatureOutputStream;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder, org.bouncycastle.asn1.ASN1ObjectIdentifier, org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$SignatureOutputStream);
    descriptor: (Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder;Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$SignatureOutputStream;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 this
         0: .line 92
            aload 0 /* this */
            aload 1
            putfield org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1.this$0:Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder;
            aload 0 /* this */
            aload 2
            putfield org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1.val$usageOid:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            aload 0 /* this */
            aload 3
            putfield org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1.val$sigStream:Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$SignatureOutputStream;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$1;
    MethodParameters:
               Name  Flags
      this$0         final
      val$usageOid   final
      val$sigStream  final

  public org.bouncycastle.asn1.ASN1ObjectIdentifier getUsageIdentifier();
    descriptor: ()Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 this
         0: .line 96
            aload 0 /* this */
            getfield org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1.val$usageOid:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            areturn
        end local 0 // org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$1;

  public java.io.OutputStream getOutputStream();
    descriptor: ()Ljava/io/OutputStream;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 this
         0: .line 101
            aload 0 /* this */
            getfield org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1.val$sigStream:Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$SignatureOutputStream;
            areturn
        end local 0 // org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$1;

  public byte[] getSignature();
    descriptor: ()[B
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=2, args_size=1
        start local 0 // org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 this
         0: .line 108
            aload 0 /* this */
            getfield org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1.val$sigStream:Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$SignatureOutputStream;
            invokevirtual org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$SignatureOutputStream.getSignature:()[B
            astore 1 /* signature */
        start local 1 // byte[] signature
         1: .line 110
            aload 0 /* this */
            getfield org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1.val$usageOid:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            getstatic org.bouncycastle.asn1.eac.EACObjectIdentifiers.id_TA_ECDSA:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.on:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)Z
            ifeq 4
         2: .line 112
            aload 1 /* signature */
            invokestatic org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder.reencode:([B)[B
         3: areturn
         4: .line 115
      StackMap locals: byte[]
      StackMap stack:
            aload 1 /* signature */
         5: areturn
        end local 1 // byte[] signature
         6: .line 117
      StackMap locals: org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1
      StackMap stack: java.security.SignatureException
            astore 1 /* e */
        start local 1 // java.security.SignatureException e
         7: .line 119
            new org.bouncycastle.operator.RuntimeOperatorException
            dup
            new java.lang.StringBuilder
            dup
            ldc "exception obtaining signature: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* e */
            invokevirtual java.security.SignatureException.getMessage:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 1 /* e */
            invokespecial org.bouncycastle.operator.RuntimeOperatorException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.security.SignatureException e
        end local 0 // org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1 this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    8     0       this  Lorg/bouncycastle/eac/operator/jcajce/JcaEACSignerBuilder$1;
            1    6     1  signature  [B
            7    8     1          e  Ljava/security/SignatureException;
      Exception table:
        from    to  target  type
           0     3       6  Class java.security.SignatureException
           4     5       6  Class java.security.SignatureException
}
SourceFile: "JcaEACSignerBuilder.java"
EnclosingMethod: org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder.build:(Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Ljava/security/PrivateKey;)Lorg/bouncycastle/eac/operator/EACSigner;
NestHost: org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder
InnerClasses:
  org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$1
  private SignatureOutputStream = org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder$SignatureOutputStream of org.bouncycastle.eac.operator.jcajce.JcaEACSignerBuilder