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.provider.JDKAlgorithmParameters$OAEP extends org.bouncycastle.jce.provider.JDKAlgorithmParameters
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP
  super_class: org.bouncycastle.jce.provider.JDKAlgorithmParameters
{
  javax.crypto.spec.OAEPParameterSpec currentSpec;
    descriptor: Ljavax/crypto/spec/OAEPParameterSpec;
    flags: (0x0000) 

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
         0: .line 1057
            aload 0 /* this */
            invokespecial org.bouncycastle.jce.provider.JDKAlgorithmParameters.<init>:()V
            return
        end local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/jce/provider/JDKAlgorithmParameters$OAEP;

  protected byte[] engineGetEncoded();
    descriptor: ()[B
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=8, locals=7, args_size=1
        start local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
         0: .line 1067
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
         1: .line 1068
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.currentSpec:Ljavax/crypto/spec/OAEPParameterSpec;
            invokevirtual javax.crypto.spec.OAEPParameterSpec.getDigestAlgorithm:()Ljava/lang/String;
            invokestatic org.bouncycastle.jce.provider.JCEDigestUtil.getOID:(Ljava/lang/String;)Lorg/bouncycastle/asn1/DERObjectIdentifier;
         2: .line 1069
            new org.bouncycastle.asn1.DERNull
            dup
            invokespecial org.bouncycastle.asn1.DERNull.<init>:()V
         3: .line 1067
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/DERObjectIdentifier;Lorg/bouncycastle/asn1/DEREncodable;)V
            astore 1 /* hashAlgorithm */
        start local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier hashAlgorithm
         4: .line 1070
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.currentSpec:Ljavax/crypto/spec/OAEPParameterSpec;
            invokevirtual javax.crypto.spec.OAEPParameterSpec.getMGFParameters:()Ljava/security/spec/AlgorithmParameterSpec;
            checkcast java.security.spec.MGF1ParameterSpec
            astore 2 /* mgfSpec */
        start local 2 // java.security.spec.MGF1ParameterSpec mgfSpec
         5: .line 1071
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
         6: .line 1072
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.id_mgf1:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
         7: .line 1073
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
            aload 2 /* mgfSpec */
            invokevirtual java.security.spec.MGF1ParameterSpec.getDigestAlgorithm:()Ljava/lang/String;
            invokestatic org.bouncycastle.jce.provider.JCEDigestUtil.getOID:(Ljava/lang/String;)Lorg/bouncycastle/asn1/DERObjectIdentifier;
            new org.bouncycastle.asn1.DERNull
            dup
            invokespecial org.bouncycastle.asn1.DERNull.<init>:()V
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/DERObjectIdentifier;Lorg/bouncycastle/asn1/DEREncodable;)V
         8: .line 1071
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/DERObjectIdentifier;Lorg/bouncycastle/asn1/DEREncodable;)V
            astore 3 /* maskGenAlgorithm */
        start local 3 // org.bouncycastle.asn1.x509.AlgorithmIdentifier maskGenAlgorithm
         9: .line 1074
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.currentSpec:Ljavax/crypto/spec/OAEPParameterSpec;
            invokevirtual javax.crypto.spec.OAEPParameterSpec.getPSource:()Ljavax/crypto/spec/PSource;
            checkcast javax.crypto.spec.PSource$PSpecified
            astore 4 /* pSource */
        start local 4 // javax.crypto.spec.PSource$PSpecified pSource
        10: .line 1075
            new org.bouncycastle.asn1.x509.AlgorithmIdentifier
            dup
        11: .line 1076
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.id_pSpecified:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            new org.bouncycastle.asn1.DEROctetString
            dup
            aload 4 /* pSource */
            invokevirtual javax.crypto.spec.PSource$PSpecified.getValue:()[B
            invokespecial org.bouncycastle.asn1.DEROctetString.<init>:([B)V
        12: .line 1075
            invokespecial org.bouncycastle.asn1.x509.AlgorithmIdentifier.<init>:(Lorg/bouncycastle/asn1/DERObjectIdentifier;Lorg/bouncycastle/asn1/DEREncodable;)V
            astore 5 /* pSourceAlgorithm */
        start local 5 // org.bouncycastle.asn1.x509.AlgorithmIdentifier pSourceAlgorithm
        13: .line 1077
            new org.bouncycastle.asn1.pkcs.RSAESOAEPparams
            dup
            aload 1 /* hashAlgorithm */
            aload 3 /* maskGenAlgorithm */
            aload 5 /* pSourceAlgorithm */
            invokespecial org.bouncycastle.asn1.pkcs.RSAESOAEPparams.<init>:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)V
            astore 6 /* oaepP */
        start local 6 // org.bouncycastle.asn1.pkcs.RSAESOAEPparams oaepP
        14: .line 1081
            aload 6 /* oaepP */
            ldc "DER"
            invokevirtual org.bouncycastle.asn1.pkcs.RSAESOAEPparams.getEncoded:(Ljava/lang/String;)[B
        15: areturn
        16: .line 1083
      StackMap locals: org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP org.bouncycastle.asn1.x509.AlgorithmIdentifier java.security.spec.MGF1ParameterSpec org.bouncycastle.asn1.x509.AlgorithmIdentifier javax.crypto.spec.PSource$PSpecified org.bouncycastle.asn1.x509.AlgorithmIdentifier org.bouncycastle.asn1.pkcs.RSAESOAEPparams
      StackMap stack: java.io.IOException
            pop
        17: .line 1085
            new java.lang.RuntimeException
            dup
            ldc "Error encoding OAEPParameters"
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            athrow
        end local 6 // org.bouncycastle.asn1.pkcs.RSAESOAEPparams oaepP
        end local 5 // org.bouncycastle.asn1.x509.AlgorithmIdentifier pSourceAlgorithm
        end local 4 // javax.crypto.spec.PSource$PSpecified pSource
        end local 3 // org.bouncycastle.asn1.x509.AlgorithmIdentifier maskGenAlgorithm
        end local 2 // java.security.spec.MGF1ParameterSpec mgfSpec
        end local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier hashAlgorithm
        end local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0   18     0              this  Lorg/bouncycastle/jce/provider/JDKAlgorithmParameters$OAEP;
            4   18     1     hashAlgorithm  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            5   18     2           mgfSpec  Ljava/security/spec/MGF1ParameterSpec;
            9   18     3  maskGenAlgorithm  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
           10   18     4           pSource  Ljavax/crypto/spec/PSource$PSpecified;
           13   18     5  pSourceAlgorithm  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
           14   18     6             oaepP  Lorg/bouncycastle/asn1/pkcs/RSAESOAEPparams;
      Exception table:
        from    to  target  type
          14    15      16  Class java.io.IOException

  protected byte[] engineGetEncoded(java.lang.String);
    descriptor: (Ljava/lang/String;)[B
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
        start local 1 // java.lang.String format
         0: .line 1092
            aload 0 /* this */
            aload 1 /* format */
            invokevirtual org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.isASN1FormatString:(Ljava/lang/String;)Z
            ifne 1
            aload 1 /* format */
            ldc "X.509"
            invokevirtual java.lang.String.equalsIgnoreCase:(Ljava/lang/String;)Z
            ifeq 2
         1: .line 1094
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.engineGetEncoded:()[B
            areturn
         2: .line 1097
      StackMap locals:
      StackMap stack:
            aconst_null
            areturn
        end local 1 // java.lang.String format
        end local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/bouncycastle/jce/provider/JDKAlgorithmParameters$OAEP;
            0    3     1  format  Ljava/lang/String;
    MethodParameters:
        Name  Flags
      format  

  protected java.security.spec.AlgorithmParameterSpec localEngineGetParameterSpec(java.lang.Class);
    descriptor: (Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
        start local 1 // java.lang.Class paramSpec
         0: .line 1104
            aload 1 /* paramSpec */
            ldc Ljavax/crypto/spec/OAEPParameterSpec;
            if_acmpne 2
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.currentSpec:Ljavax/crypto/spec/OAEPParameterSpec;
            ifnull 2
         1: .line 1106
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.currentSpec:Ljavax/crypto/spec/OAEPParameterSpec;
            areturn
         2: .line 1109
      StackMap locals:
      StackMap stack:
            new java.security.spec.InvalidParameterSpecException
            dup
            ldc "unknown parameter spec passed to OAEP parameters object."
            invokespecial java.security.spec.InvalidParameterSpecException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // java.lang.Class paramSpec
        end local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lorg/bouncycastle/jce/provider/JDKAlgorithmParameters$OAEP;
            0    3     1  paramSpec  Ljava/lang/Class;
    Exceptions:
      throws java.security.spec.InvalidParameterSpecException
    MethodParameters:
           Name  Flags
      paramSpec  

  protected void engineInit(java.security.spec.AlgorithmParameterSpec);
    descriptor: (Ljava/security/spec/AlgorithmParameterSpec;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
        start local 1 // java.security.spec.AlgorithmParameterSpec paramSpec
         0: .line 1116
            aload 1 /* paramSpec */
            instanceof javax.crypto.spec.OAEPParameterSpec
            ifne 2
         1: .line 1118
            new java.security.spec.InvalidParameterSpecException
            dup
            ldc "OAEPParameterSpec required to initialise an OAEP algorithm parameters object"
            invokespecial java.security.spec.InvalidParameterSpecException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 1121
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* paramSpec */
            checkcast javax.crypto.spec.OAEPParameterSpec
            putfield org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.currentSpec:Ljavax/crypto/spec/OAEPParameterSpec;
         3: .line 1122
            return
        end local 1 // java.security.spec.AlgorithmParameterSpec paramSpec
        end local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    4     0       this  Lorg/bouncycastle/jce/provider/JDKAlgorithmParameters$OAEP;
            0    4     1  paramSpec  Ljava/security/spec/AlgorithmParameterSpec;
    Exceptions:
      throws java.security.spec.InvalidParameterSpecException
    MethodParameters:
           Name  Flags
      paramSpec  

  protected void engineInit(byte[]);
    descriptor: ([B)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=9, locals=3, args_size=2
        start local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
        start local 1 // byte[] params
         0: .line 1130
            new org.bouncycastle.asn1.pkcs.RSAESOAEPparams
            dup
            aload 1 /* params */
            invokestatic org.bouncycastle.asn1.ASN1Object.fromByteArray:([B)Lorg/bouncycastle/asn1/ASN1Object;
            checkcast org.bouncycastle.asn1.ASN1Sequence
            invokespecial org.bouncycastle.asn1.pkcs.RSAESOAEPparams.<init>:(Lorg/bouncycastle/asn1/ASN1Sequence;)V
            astore 2 /* oaepP */
        start local 2 // org.bouncycastle.asn1.pkcs.RSAESOAEPparams oaepP
         1: .line 1132
            aload 0 /* this */
            new javax.crypto.spec.OAEPParameterSpec
            dup
         2: .line 1133
            aload 2 /* oaepP */
            invokevirtual org.bouncycastle.asn1.pkcs.RSAESOAEPparams.getHashAlgorithm:()Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getObjectId:()Lorg/bouncycastle/asn1/DERObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.DERObjectIdentifier.getId:()Ljava/lang/String;
         3: .line 1134
            aload 2 /* oaepP */
            invokevirtual org.bouncycastle.asn1.pkcs.RSAESOAEPparams.getMaskGenAlgorithm:()Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getObjectId:()Lorg/bouncycastle/asn1/DERObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.DERObjectIdentifier.getId:()Ljava/lang/String;
         4: .line 1135
            new java.security.spec.MGF1ParameterSpec
            dup
            aload 2 /* oaepP */
            invokevirtual org.bouncycastle.asn1.pkcs.RSAESOAEPparams.getMaskGenAlgorithm:()Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getParameters:()Lorg/bouncycastle/asn1/DEREncodable;
            invokestatic org.bouncycastle.asn1.x509.AlgorithmIdentifier.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getObjectId:()Lorg/bouncycastle/asn1/DERObjectIdentifier;
            invokevirtual org.bouncycastle.asn1.DERObjectIdentifier.getId:()Ljava/lang/String;
            invokespecial java.security.spec.MGF1ParameterSpec.<init>:(Ljava/lang/String;)V
         5: .line 1136
            new javax.crypto.spec.PSource$PSpecified
            dup
            aload 2 /* oaepP */
            invokevirtual org.bouncycastle.asn1.pkcs.RSAESOAEPparams.getPSourceAlgorithm:()Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            invokevirtual org.bouncycastle.asn1.x509.AlgorithmIdentifier.getParameters:()Lorg/bouncycastle/asn1/DEREncodable;
            invokestatic org.bouncycastle.asn1.ASN1OctetString.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1OctetString;
            invokevirtual org.bouncycastle.asn1.ASN1OctetString.getOctets:()[B
            invokespecial javax.crypto.spec.PSource$PSpecified.<init>:([B)V
            invokespecial javax.crypto.spec.OAEPParameterSpec.<init>:(Ljava/lang/String;Ljava/lang/String;Ljava/security/spec/AlgorithmParameterSpec;Ljavax/crypto/spec/PSource;)V
         6: .line 1132
            putfield org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.currentSpec:Ljavax/crypto/spec/OAEPParameterSpec;
        end local 2 // org.bouncycastle.asn1.pkcs.RSAESOAEPparams oaepP
         7: .line 1137
            goto 12
         8: .line 1138
      StackMap locals:
      StackMap stack: java.lang.ClassCastException
            pop
         9: .line 1140
            new java.io.IOException
            dup
            ldc "Not a valid OAEP Parameter encoding."
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
        10: .line 1142
      StackMap locals:
      StackMap stack: java.lang.ArrayIndexOutOfBoundsException
            pop
        11: .line 1144
            new java.io.IOException
            dup
            ldc "Not a valid OAEP Parameter encoding."
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
        12: .line 1146
      StackMap locals:
      StackMap stack:
            return
        end local 1 // byte[] params
        end local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   13     0    this  Lorg/bouncycastle/jce/provider/JDKAlgorithmParameters$OAEP;
            0   13     1  params  [B
            1    7     2   oaepP  Lorg/bouncycastle/asn1/pkcs/RSAESOAEPparams;
      Exception table:
        from    to  target  type
           0     7       8  Class java.lang.ClassCastException
           0     7      10  Class java.lang.ArrayIndexOutOfBoundsException
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      params  

  protected void engineInit(byte[], java.lang.String);
    descriptor: ([BLjava/lang/String;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
        start local 1 // byte[] params
        start local 2 // java.lang.String format
         0: .line 1153
            aload 2 /* format */
            ldc "X.509"
            invokevirtual java.lang.String.equalsIgnoreCase:(Ljava/lang/String;)Z
            ifne 2
         1: .line 1154
            aload 2 /* format */
            ldc "ASN.1"
            invokevirtual java.lang.String.equalsIgnoreCase:(Ljava/lang/String;)Z
            ifeq 4
         2: .line 1156
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* params */
            invokevirtual org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP.engineInit:([B)V
         3: .line 1157
            goto 5
         4: .line 1160
      StackMap locals:
      StackMap stack:
            new java.io.IOException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Unknown parameter format "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 2 /* format */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 1162
      StackMap locals:
      StackMap stack:
            return
        end local 2 // java.lang.String format
        end local 1 // byte[] params
        end local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    6     0    this  Lorg/bouncycastle/jce/provider/JDKAlgorithmParameters$OAEP;
            0    6     1  params  [B
            0    6     2  format  Ljava/lang/String;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      params  
      format  

  protected java.lang.String engineToString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
         0: .line 1166
            ldc "OAEP Parameters"
            areturn
        end local 0 // org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/jce/provider/JDKAlgorithmParameters$OAEP;
}
SourceFile: "JDKAlgorithmParameters.java"
NestHost: org.bouncycastle.jce.provider.JDKAlgorithmParameters
InnerClasses:
  public final PSpecified = javax.crypto.spec.PSource$PSpecified of javax.crypto.spec.PSource
  public OAEP = org.bouncycastle.jce.provider.JDKAlgorithmParameters$OAEP of org.bouncycastle.jce.provider.JDKAlgorithmParameters