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.JDKPSSSigner$SHA512withRSA extends org.bouncycastle.jce.provider.JDKPSSSigner
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.jce.provider.JDKPSSSigner$SHA512withRSA
  super_class: org.bouncycastle.jce.provider.JDKPSSSigner
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=9, locals=1, args_size=1
        start local 0 // org.bouncycastle.jce.provider.JDKPSSSigner$SHA512withRSA this
         0: .line 324
            aload 0 /* this */
            new org.bouncycastle.crypto.engines.RSABlindedEngine
            dup
            invokespecial org.bouncycastle.crypto.engines.RSABlindedEngine.<init>:()V
            new java.security.spec.PSSParameterSpec
            dup
            ldc "SHA-512"
            ldc "MGF1"
            new java.security.spec.MGF1ParameterSpec
            dup
            ldc "SHA-512"
            invokespecial java.security.spec.MGF1ParameterSpec.<init>:(Ljava/lang/String;)V
            bipush 64
            iconst_1
            invokespecial java.security.spec.PSSParameterSpec.<init>:(Ljava/lang/String;Ljava/lang/String;Ljava/security/spec/AlgorithmParameterSpec;II)V
            invokespecial org.bouncycastle.jce.provider.JDKPSSSigner.<init>:(Lorg/bouncycastle/crypto/AsymmetricBlockCipher;Ljava/security/spec/PSSParameterSpec;)V
         1: .line 325
            return
        end local 0 // org.bouncycastle.jce.provider.JDKPSSSigner$SHA512withRSA this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/jce/provider/JDKPSSSigner$SHA512withRSA;
}
SourceFile: "JDKPSSSigner.java"
NestHost: org.bouncycastle.jce.provider.JDKPSSSigner
InnerClasses:
  public SHA512withRSA = org.bouncycastle.jce.provider.JDKPSSSigner$SHA512withRSA of org.bouncycastle.jce.provider.JDKPSSSigner