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.symmetric.RC5$Mappings extends java.util.HashMap
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.jce.provider.symmetric.RC5$Mappings
  super_class: java.util.HashMap
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.bouncycastle.jce.provider.symmetric.RC5$Mappings this
         0: .line 152
            aload 0 /* this */
            invokespecial java.util.HashMap.<init>:()V
         1: .line 154
            aload 0 /* this */
            ldc "Cipher.RC5"
            ldc "org.bouncycastle.jce.provider.symmetric.RC5$ECB32"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         2: .line 155
            aload 0 /* this */
            ldc "Alg.Alias.Cipher.RC5-32"
            ldc "RC5"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         3: .line 156
            aload 0 /* this */
            ldc "Cipher.RC5-64"
            ldc "org.bouncycastle.jce.provider.symmetric.RC5$ECB64"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         4: .line 157
            aload 0 /* this */
            ldc "KeyGenerator.RC5"
            ldc "org.bouncycastle.jce.provider.symmetric.RC5$KeyGen32"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         5: .line 158
            aload 0 /* this */
            ldc "Alg.Alias.KeyGenerator.RC5-32"
            ldc "RC5"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         6: .line 159
            aload 0 /* this */
            ldc "KeyGenerator.RC5-64"
            ldc "org.bouncycastle.jce.provider.symmetric.RC5$KeyGen64"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         7: .line 160
            aload 0 /* this */
            ldc "AlgorithmParameters.RC5"
            ldc "org.bouncycastle.jce.provider.symmetric.RC5$AlgParams"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         8: .line 161
            aload 0 /* this */
            ldc "AlgorithmParameters.RC5-64"
            ldc "org.bouncycastle.jce.provider.symmetric.RC5$AlgParams"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         9: .line 162
            aload 0 /* this */
            ldc "Mac.RC5MAC"
            ldc "org.bouncycastle.jce.provider.symmetric.RC5$Mac32"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        10: .line 163
            aload 0 /* this */
            ldc "Alg.Alias.Mac.RC5"
            ldc "RC5MAC"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        11: .line 164
            aload 0 /* this */
            ldc "Mac.RC5MAC/CFB8"
            ldc "org.bouncycastle.jce.provider.symmetric.RC5$CFB8Mac32"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        12: .line 165
            aload 0 /* this */
            ldc "Alg.Alias.Mac.RC5/CFB8"
            ldc "RC5MAC/CFB8"
            invokevirtual org.bouncycastle.jce.provider.symmetric.RC5$Mappings.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        13: .line 166
            return
        end local 0 // org.bouncycastle.jce.provider.symmetric.RC5$Mappings this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   14     0  this  Lorg/bouncycastle/jce/provider/symmetric/RC5$Mappings;
}
SourceFile: "RC5.java"
NestHost: org.bouncycastle.jce.provider.symmetric.RC5
InnerClasses:
  public Mappings = org.bouncycastle.jce.provider.symmetric.RC5$Mappings of org.bouncycastle.jce.provider.symmetric.RC5