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.X509CertPairParser extends org.bouncycastle.x509.X509StreamParserSpi
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.jce.provider.X509CertPairParser
  super_class: org.bouncycastle.x509.X509StreamParserSpi
{
  private java.io.InputStream currentStream;
    descriptor: Ljava/io/InputStream;
    flags: (0x0002) ACC_PRIVATE

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
         0: .line 18
            aload 0 /* this */
            invokespecial org.bouncycastle.x509.X509StreamParserSpi.<init>:()V
         1: .line 21
            aload 0 /* this */
            aconst_null
            putfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
         2: .line 18
            return
        end local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/bouncycastle/jce/provider/X509CertPairParser;

  private org.bouncycastle.x509.X509CertificatePair readDERCrossCertificatePair(java.io.InputStream);
    descriptor: (Ljava/io/InputStream;)Lorg/bouncycastle/x509/X509CertificatePair;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=5, args_size=2
        start local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
        start local 1 // java.io.InputStream in
         0: .line 27
            new org.bouncycastle.asn1.ASN1InputStream
            dup
            aload 1 /* in */
            aload 1 /* in */
            invokestatic org.bouncycastle.jce.provider.ProviderUtil.getReadLimit:(Ljava/io/InputStream;)I
            invokespecial org.bouncycastle.asn1.ASN1InputStream.<init>:(Ljava/io/InputStream;I)V
            astore 2 /* dIn */
        start local 2 // org.bouncycastle.asn1.ASN1InputStream dIn
         1: .line 28
            aload 2 /* dIn */
            invokevirtual org.bouncycastle.asn1.ASN1InputStream.readObject:()Lorg/bouncycastle/asn1/DERObject;
            checkcast org.bouncycastle.asn1.ASN1Sequence
            astore 3 /* seq */
        start local 3 // org.bouncycastle.asn1.ASN1Sequence seq
         2: .line 29
            aload 3 /* seq */
            invokestatic org.bouncycastle.asn1.x509.CertificatePair.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/x509/CertificatePair;
            astore 4 /* pair */
        start local 4 // org.bouncycastle.asn1.x509.CertificatePair pair
         3: .line 30
            new org.bouncycastle.x509.X509CertificatePair
            dup
            aload 4 /* pair */
            invokespecial org.bouncycastle.x509.X509CertificatePair.<init>:(Lorg/bouncycastle/asn1/x509/CertificatePair;)V
            areturn
        end local 4 // org.bouncycastle.asn1.x509.CertificatePair pair
        end local 3 // org.bouncycastle.asn1.ASN1Sequence seq
        end local 2 // org.bouncycastle.asn1.ASN1InputStream dIn
        end local 1 // java.io.InputStream in
        end local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/bouncycastle/jce/provider/X509CertPairParser;
            0    4     1    in  Ljava/io/InputStream;
            1    4     2   dIn  Lorg/bouncycastle/asn1/ASN1InputStream;
            2    4     3   seq  Lorg/bouncycastle/asn1/ASN1Sequence;
            3    4     4  pair  Lorg/bouncycastle/asn1/x509/CertificatePair;
    Exceptions:
      throws java.io.IOException, java.security.cert.CertificateParsingException
    MethodParameters:
      Name  Flags
      in    

  public void engineInit(java.io.InputStream);
    descriptor: (Ljava/io/InputStream;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
        start local 1 // java.io.InputStream in
         0: .line 35
            aload 0 /* this */
            aload 1 /* in */
            putfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
         1: .line 37
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
            invokevirtual java.io.InputStream.markSupported:()Z
            ifne 3
         2: .line 39
            aload 0 /* this */
            new java.io.BufferedInputStream
            dup
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
            invokespecial java.io.BufferedInputStream.<init>:(Ljava/io/InputStream;)V
            putfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
         3: .line 41
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.io.InputStream in
        end local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/bouncycastle/jce/provider/X509CertPairParser;
            0    4     1    in  Ljava/io/InputStream;
    MethodParameters:
      Name  Flags
      in    

  public java.lang.Object engineRead();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
         0: .line 48
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
            bipush 10
            invokevirtual java.io.InputStream.mark:(I)V
         1: .line 49
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
            invokevirtual java.io.InputStream.read:()I
            istore 1 /* tag */
        start local 1 // int tag
         2: .line 51
            iload 1 /* tag */
            iconst_m1
            if_icmpne 4
         3: .line 53
            aconst_null
            areturn
         4: .line 56
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
            invokevirtual java.io.InputStream.reset:()V
         5: .line 57
            aload 0 /* this */
            aload 0 /* this */
            getfield org.bouncycastle.jce.provider.X509CertPairParser.currentStream:Ljava/io/InputStream;
            invokevirtual org.bouncycastle.jce.provider.X509CertPairParser.readDERCrossCertificatePair:(Ljava/io/InputStream;)Lorg/bouncycastle/x509/X509CertificatePair;
         6: areturn
        end local 1 // int tag
         7: .line 59
      StackMap locals: org.bouncycastle.jce.provider.X509CertPairParser
      StackMap stack: java.lang.Exception
            astore 1 /* e */
        start local 1 // java.lang.Exception e
         8: .line 61
            new org.bouncycastle.x509.util.StreamParsingException
            dup
            aload 1 /* e */
            invokevirtual java.lang.Exception.toString:()Ljava/lang/String;
            aload 1 /* e */
            invokespecial org.bouncycastle.x509.util.StreamParsingException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.lang.Exception e
        end local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    9     0  this  Lorg/bouncycastle/jce/provider/X509CertPairParser;
            2    7     1   tag  I
            8    9     1     e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           0     3       7  Class java.lang.Exception
           4     6       7  Class java.lang.Exception
    Exceptions:
      throws org.bouncycastle.x509.util.StreamParsingException

  public java.util.Collection engineReadAll();
    descriptor: ()Ljava/util/Collection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=1
        start local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
         0: .line 68
            new java.util.ArrayList
            dup
            invokespecial java.util.ArrayList.<init>:()V
            astore 2 /* certs */
        start local 2 // java.util.List certs
         1: .line 70
            goto 3
        start local 1 // org.bouncycastle.x509.X509CertificatePair pair
         2: .line 72
      StackMap locals: org.bouncycastle.x509.X509CertificatePair java.util.List
      StackMap stack:
            aload 2 /* certs */
            aload 1 /* pair */
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        end local 1 // org.bouncycastle.x509.X509CertificatePair pair
         3: .line 70
      StackMap locals: org.bouncycastle.jce.provider.X509CertPairParser top java.util.List
      StackMap stack:
            aload 0 /* this */
            invokevirtual org.bouncycastle.jce.provider.X509CertPairParser.engineRead:()Ljava/lang/Object;
            checkcast org.bouncycastle.x509.X509CertificatePair
            dup
            astore 1 /* pair */
        start local 1 // org.bouncycastle.x509.X509CertificatePair pair
         4: ifnonnull 2
         5: .line 75
            aload 2 /* certs */
            areturn
        end local 2 // java.util.List certs
        end local 1 // org.bouncycastle.x509.X509CertificatePair pair
        end local 0 // org.bouncycastle.jce.provider.X509CertPairParser this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    6     0   this  Lorg/bouncycastle/jce/provider/X509CertPairParser;
            2    3     1   pair  Lorg/bouncycastle/x509/X509CertificatePair;
            4    6     1   pair  Lorg/bouncycastle/x509/X509CertificatePair;
            1    6     2  certs  Ljava/util/List;
    Exceptions:
      throws org.bouncycastle.x509.util.StreamParsingException
}
SourceFile: "X509CertPairParser.java"