https://tomcat.apache.org/: Tomcat Servlet Engine Core Classes and Standard implementations 
public class org.apache.catalina.realm.JAASMemoryLoginModule extends org.apache.catalina.realm.MemoryRealm implements javax.security.auth.spi.LoginModule
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.catalina.realm.JAASMemoryLoginModule
  super_class: org.apache.catalina.realm.MemoryRealm
{
  private static final org.apache.juli.logging.Log log;
    descriptor: Lorg/apache/juli/logging/Log;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  protected javax.security.auth.callback.CallbackHandler callbackHandler;
    descriptor: Ljavax/security/auth/callback/CallbackHandler;
    flags: (0x0004) ACC_PROTECTED

  protected boolean committed;
    descriptor: Z
    flags: (0x0004) ACC_PROTECTED

  protected java.util.Map<java.lang.String, ?> options;
    descriptor: Ljava/util/Map;
    flags: (0x0004) ACC_PROTECTED
    Signature: Ljava/util/Map<Ljava/lang/String;*>;

  protected java.lang.String pathname;
    descriptor: Ljava/lang/String;
    flags: (0x0004) ACC_PROTECTED

  protected java.security.Principal principal;
    descriptor: Ljava/security/Principal;
    flags: (0x0004) ACC_PROTECTED

  protected java.util.Map<java.lang.String, ?> sharedState;
    descriptor: Ljava/util/Map;
    flags: (0x0004) ACC_PROTECTED
    Signature: Ljava/util/Map<Ljava/lang/String;*>;

  protected javax.security.auth.Subject subject;
    descriptor: Ljavax/security/auth/Subject;
    flags: (0x0004) ACC_PROTECTED

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 80
            ldc Lorg/apache/catalina/realm/JAASMemoryLoginModule;
            invokestatic org.apache.juli.logging.LogFactory.getLog:(Ljava/lang/Class;)Lorg/apache/juli/logging/Log;
            putstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
         0: .line 131
            aload 0 /* this */
            invokespecial org.apache.catalina.realm.MemoryRealm.<init>:()V
         1: .line 88
            aload 0 /* this */
            aconst_null
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.callbackHandler:Ljavax/security/auth/callback/CallbackHandler;
         2: .line 94
            aload 0 /* this */
            iconst_0
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.committed:Z
         3: .line 100
            aload 0 /* this */
            aconst_null
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.options:Ljava/util/Map;
         4: .line 106
            aload 0 /* this */
            ldc "conf/tomcat-users.xml"
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.pathname:Ljava/lang/String;
         5: .line 113
            aload 0 /* this */
            aconst_null
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
         6: .line 120
            aload 0 /* this */
            aconst_null
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.sharedState:Ljava/util/Map;
         7: .line 126
            aload 0 /* this */
            aconst_null
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.subject:Ljavax/security/auth/Subject;
         8: .line 132
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            invokeinterface org.apache.juli.logging.Log.isDebugEnabled:()Z
            ifeq 10
         9: .line 133
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            ldc "MEMORY LOGIN MODULE"
            invokeinterface org.apache.juli.logging.Log.debug:(Ljava/lang/Object;)V
        10: .line 135
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule
      StackMap stack:
            return
        end local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   11     0  this  Lorg/apache/catalina/realm/JAASMemoryLoginModule;

  public boolean abort();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
         0: .line 152
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            ifnonnull 2
         1: .line 153
            iconst_0
            ireturn
         2: .line 157
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.committed:Z
            ifeq 5
         3: .line 158
            aload 0 /* this */
            invokevirtual org.apache.catalina.realm.JAASMemoryLoginModule.logout:()Z
            pop
         4: .line 159
            goto 7
         5: .line 160
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iconst_0
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.committed:Z
         6: .line 161
            aload 0 /* this */
            aconst_null
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
         7: .line 163
      StackMap locals:
      StackMap stack:
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            invokeinterface org.apache.juli.logging.Log.isDebugEnabled:()Z
            ifeq 9
         8: .line 164
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            ldc "Abort"
            invokeinterface org.apache.juli.logging.Log.debug:(Ljava/lang/Object;)V
         9: .line 166
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0  this  Lorg/apache/catalina/realm/JAASMemoryLoginModule;
    Exceptions:
      throws javax.security.auth.login.LoginException

  public boolean commit();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=6, args_size=1
        start local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
         0: .line 183
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            invokeinterface org.apache.juli.logging.Log.isDebugEnabled:()Z
            ifeq 2
         1: .line 184
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            new java.lang.StringBuilder
            dup
            ldc "commit "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokeinterface org.apache.juli.logging.Log.debug:(Ljava/lang/Object;)V
         2: .line 188
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            ifnonnull 4
         3: .line 189
            iconst_0
            ireturn
         4: .line 193
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.subject:Ljavax/security/auth/Subject;
            invokevirtual javax.security.auth.Subject.getPrincipals:()Ljava/util/Set;
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            ifne 13
         5: .line 194
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.subject:Ljavax/security/auth/Subject;
            invokevirtual javax.security.auth.Subject.getPrincipals:()Ljava/util/Set;
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
            pop
         6: .line 197
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            instanceof org.apache.catalina.realm.GenericPrincipal
            ifeq 13
         7: .line 198
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            checkcast org.apache.catalina.realm.GenericPrincipal
            invokevirtual org.apache.catalina.realm.GenericPrincipal.getRoles:()[Ljava/lang/String;
            astore 1 /* roles */
        start local 1 // java.lang.String[] roles
         8: .line 199
            aload 1 /* roles */
            dup
            astore 5
            arraylength
            istore 4
            iconst_0
            istore 3
            goto 12
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule java.lang.String[] top int int java.lang.String[]
      StackMap stack:
         9: aload 5
            iload 3
            aaload
            astore 2 /* role */
        start local 2 // java.lang.String role
        10: .line 200
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.subject:Ljavax/security/auth/Subject;
            invokevirtual javax.security.auth.Subject.getPrincipals:()Ljava/util/Set;
            new org.apache.catalina.realm.GenericPrincipal
            dup
            aload 2 /* role */
            invokespecial org.apache.catalina.realm.GenericPrincipal.<init>:(Ljava/lang/String;)V
            invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
            pop
        end local 2 // java.lang.String role
        11: .line 199
            iinc 3 1
      StackMap locals:
      StackMap stack:
        12: iload 3
            iload 4
            if_icmplt 9
        end local 1 // java.lang.String[] roles
        13: .line 206
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule
      StackMap stack:
            aload 0 /* this */
            iconst_1
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.committed:Z
        14: .line 207
            iconst_1
            ireturn
        end local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   15     0   this  Lorg/apache/catalina/realm/JAASMemoryLoginModule;
            8   13     1  roles  [Ljava/lang/String;
           10   11     2   role  Ljava/lang/String;
    Exceptions:
      throws javax.security.auth.login.LoginException

  public void initialize(javax.security.auth.Subject, javax.security.auth.callback.CallbackHandler, java.util.Map<java.lang.String, ?>, java.util.Map<java.lang.String, ?>);
    descriptor: (Ljavax/security/auth/Subject;Ljavax/security/auth/callback/CallbackHandler;Ljava/util/Map;Ljava/util/Map;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=9, args_size=5
        start local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
        start local 1 // javax.security.auth.Subject subject
        start local 2 // javax.security.auth.callback.CallbackHandler callbackHandler
        start local 3 // java.util.Map sharedState
        start local 4 // java.util.Map options
         0: .line 226
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            invokeinterface org.apache.juli.logging.Log.isDebugEnabled:()Z
            ifeq 2
         1: .line 227
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            ldc "Init"
            invokeinterface org.apache.juli.logging.Log.debug:(Ljava/lang/Object;)V
         2: .line 231
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* subject */
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.subject:Ljavax/security/auth/Subject;
         3: .line 232
            aload 0 /* this */
            aload 2 /* callbackHandler */
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.callbackHandler:Ljavax/security/auth/callback/CallbackHandler;
         4: .line 233
            aload 0 /* this */
            aload 3 /* sharedState */
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.sharedState:Ljava/util/Map;
         5: .line 234
            aload 0 /* this */
            aload 4 /* options */
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.options:Ljava/util/Map;
         6: .line 237
            aload 4 /* options */
            ldc "pathname"
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            astore 5 /* option */
        start local 5 // java.lang.Object option
         7: .line 238
            aload 5 /* option */
            instanceof java.lang.String
            ifeq 9
         8: .line 239
            aload 0 /* this */
            aload 5 /* option */
            checkcast java.lang.String
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.pathname:Ljava/lang/String;
         9: .line 242
      StackMap locals: java.lang.Object
      StackMap stack:
            aconst_null
            astore 6 /* credentialHandler */
        start local 6 // org.apache.catalina.CredentialHandler credentialHandler
        10: .line 243
            aload 4 /* options */
            ldc "credentialHandlerClassName"
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            astore 5 /* option */
        11: .line 244
            aload 5 /* option */
            instanceof java.lang.String
            ifeq 17
        12: .line 246
            aload 5 /* option */
            checkcast java.lang.String
            invokestatic java.lang.Class.forName:(Ljava/lang/String;)Ljava/lang/Class;
            astore 7 /* clazz */
        start local 7 // java.lang.Class clazz
        13: .line 247
            aload 7 /* clazz */
            iconst_0
            anewarray java.lang.Class
            invokevirtual java.lang.Class.getConstructor:([Ljava/lang/Class;)Ljava/lang/reflect/Constructor;
            iconst_0
            anewarray java.lang.Object
            invokevirtual java.lang.reflect.Constructor.newInstance:([Ljava/lang/Object;)Ljava/lang/Object;
            checkcast org.apache.catalina.CredentialHandler
            astore 6 /* credentialHandler */
        end local 7 // java.lang.Class clazz
        14: .line 248
            goto 17
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule javax.security.auth.Subject javax.security.auth.callback.CallbackHandler java.util.Map java.util.Map java.lang.Object org.apache.catalina.CredentialHandler
      StackMap stack: java.lang.ReflectiveOperationException
        15: astore 7 /* e */
        start local 7 // java.lang.ReflectiveOperationException e
        16: .line 249
            new java.lang.IllegalArgumentException
            dup
            aload 7 /* e */
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 7 // java.lang.ReflectiveOperationException e
        17: .line 252
      StackMap locals:
      StackMap stack:
            aload 6 /* credentialHandler */
            ifnonnull 19
        18: .line 253
            new org.apache.catalina.realm.MessageDigestCredentialHandler
            dup
            invokespecial org.apache.catalina.realm.MessageDigestCredentialHandler.<init>:()V
            astore 6 /* credentialHandler */
        19: .line 256
      StackMap locals:
      StackMap stack:
            aload 4 /* options */
            invokeinterface java.util.Map.entrySet:()Ljava/util/Set;
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            astore 8
            goto 29
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule javax.security.auth.Subject javax.security.auth.callback.CallbackHandler java.util.Map java.util.Map java.lang.Object org.apache.catalina.CredentialHandler top java.util.Iterator
      StackMap stack:
        20: aload 8
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.util.Map$Entry
            astore 7 /* entry */
        start local 7 // java.util.Map$Entry entry
        21: .line 257
            ldc "pathname"
            aload 7 /* entry */
            invokeinterface java.util.Map$Entry.getKey:()Ljava/lang/Object;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 23
        22: .line 258
            goto 29
        23: .line 260
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule javax.security.auth.Subject javax.security.auth.callback.CallbackHandler java.util.Map java.util.Map java.lang.Object org.apache.catalina.CredentialHandler java.util.Map$Entry java.util.Iterator
      StackMap stack:
            ldc "credentialHandlerClassName"
            aload 7 /* entry */
            invokeinterface java.util.Map$Entry.getKey:()Ljava/lang/Object;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 25
        24: .line 261
            goto 29
        25: .line 265
      StackMap locals:
      StackMap stack:
            aload 7 /* entry */
            invokeinterface java.util.Map$Entry.getValue:()Ljava/lang/Object;
            instanceof java.lang.String
            ifeq 29
        26: .line 266
            aload 6 /* credentialHandler */
            aload 7 /* entry */
            invokeinterface java.util.Map$Entry.getKey:()Ljava/lang/Object;
            checkcast java.lang.String
        27: .line 267
            aload 7 /* entry */
            invokeinterface java.util.Map$Entry.getValue:()Ljava/lang/Object;
            checkcast java.lang.String
        28: .line 266
            invokestatic org.apache.tomcat.util.IntrospectionUtils.setProperty:(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;)Z
            pop
        end local 7 // java.util.Map$Entry entry
        29: .line 256
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule javax.security.auth.Subject javax.security.auth.callback.CallbackHandler java.util.Map java.util.Map java.lang.Object org.apache.catalina.CredentialHandler top java.util.Iterator
      StackMap stack:
            aload 8
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 20
        30: .line 270
            aload 0 /* this */
            aload 6 /* credentialHandler */
            invokevirtual org.apache.catalina.realm.JAASMemoryLoginModule.setCredentialHandler:(Lorg/apache/catalina/CredentialHandler;)V
        31: .line 273
            aload 0 /* this */
            invokevirtual org.apache.catalina.realm.JAASMemoryLoginModule.load:()V
        32: .line 274
            return
        end local 6 // org.apache.catalina.CredentialHandler credentialHandler
        end local 5 // java.lang.Object option
        end local 4 // java.util.Map options
        end local 3 // java.util.Map sharedState
        end local 2 // javax.security.auth.callback.CallbackHandler callbackHandler
        end local 1 // javax.security.auth.Subject subject
        end local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0   33     0               this  Lorg/apache/catalina/realm/JAASMemoryLoginModule;
            0   33     1            subject  Ljavax/security/auth/Subject;
            0   33     2    callbackHandler  Ljavax/security/auth/callback/CallbackHandler;
            0   33     3        sharedState  Ljava/util/Map<Ljava/lang/String;*>;
            0   33     4            options  Ljava/util/Map<Ljava/lang/String;*>;
            7   33     5             option  Ljava/lang/Object;
           10   33     6  credentialHandler  Lorg/apache/catalina/CredentialHandler;
           13   14     7              clazz  Ljava/lang/Class<*>;
           16   17     7                  e  Ljava/lang/ReflectiveOperationException;
           21   29     7              entry  Ljava/util/Map$Entry<Ljava/lang/String;*>;
      Exception table:
        from    to  target  type
          12    14      15  Class java.lang.ReflectiveOperationException
    Signature: (Ljavax/security/auth/Subject;Ljavax/security/auth/callback/CallbackHandler;Ljava/util/Map<Ljava/lang/String;*>;Ljava/util/Map<Ljava/lang/String;*>;)V
    MethodParameters:
                 Name  Flags
      subject          
      callbackHandler  
      sharedState      
      options          

  public boolean login();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=10, locals=12, args_size=1
        start local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
         0: .line 289
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.callbackHandler:Ljavax/security/auth/callback/CallbackHandler;
            ifnonnull 2
         1: .line 290
            new javax.security.auth.login.LoginException
            dup
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.sm:Lorg/apache/tomcat/util/res/StringManager;
            ldc "jaasMemoryLoginModule.noCallbackHandler"
            invokevirtual org.apache.tomcat.util.res.StringManager.getString:(Ljava/lang/String;)Ljava/lang/String;
            invokespecial javax.security.auth.login.LoginException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 292
      StackMap locals:
      StackMap stack:
            bipush 9
            anewarray javax.security.auth.callback.Callback
            astore 1 /* callbacks */
        start local 1 // javax.security.auth.callback.Callback[] callbacks
         3: .line 293
            aload 1 /* callbacks */
            iconst_0
            new javax.security.auth.callback.NameCallback
            dup
            ldc "Username: "
            invokespecial javax.security.auth.callback.NameCallback.<init>:(Ljava/lang/String;)V
            aastore
         4: .line 294
            aload 1 /* callbacks */
            iconst_1
            new javax.security.auth.callback.PasswordCallback
            dup
            ldc "Password: "
            iconst_0
            invokespecial javax.security.auth.callback.PasswordCallback.<init>:(Ljava/lang/String;Z)V
            aastore
         5: .line 295
            aload 1 /* callbacks */
            iconst_2
            new javax.security.auth.callback.TextInputCallback
            dup
            ldc "nonce"
            invokespecial javax.security.auth.callback.TextInputCallback.<init>:(Ljava/lang/String;)V
            aastore
         6: .line 296
            aload 1 /* callbacks */
            iconst_3
            new javax.security.auth.callback.TextInputCallback
            dup
            ldc "nc"
            invokespecial javax.security.auth.callback.TextInputCallback.<init>:(Ljava/lang/String;)V
            aastore
         7: .line 297
            aload 1 /* callbacks */
            iconst_4
            new javax.security.auth.callback.TextInputCallback
            dup
            ldc "cnonce"
            invokespecial javax.security.auth.callback.TextInputCallback.<init>:(Ljava/lang/String;)V
            aastore
         8: .line 298
            aload 1 /* callbacks */
            iconst_5
            new javax.security.auth.callback.TextInputCallback
            dup
            ldc "qop"
            invokespecial javax.security.auth.callback.TextInputCallback.<init>:(Ljava/lang/String;)V
            aastore
         9: .line 299
            aload 1 /* callbacks */
            bipush 6
            new javax.security.auth.callback.TextInputCallback
            dup
            ldc "realmName"
            invokespecial javax.security.auth.callback.TextInputCallback.<init>:(Ljava/lang/String;)V
            aastore
        10: .line 300
            aload 1 /* callbacks */
            bipush 7
            new javax.security.auth.callback.TextInputCallback
            dup
            ldc "md5a2"
            invokespecial javax.security.auth.callback.TextInputCallback.<init>:(Ljava/lang/String;)V
            aastore
        11: .line 301
            aload 1 /* callbacks */
            bipush 8
            new javax.security.auth.callback.TextInputCallback
            dup
            ldc "authMethod"
            invokespecial javax.security.auth.callback.TextInputCallback.<init>:(Ljava/lang/String;)V
            aastore
        12: .line 304
            aconst_null
            astore 2 /* username */
        start local 2 // java.lang.String username
        13: .line 305
            aconst_null
            astore 3 /* password */
        start local 3 // java.lang.String password
        14: .line 306
            aconst_null
            astore 4 /* nonce */
        start local 4 // java.lang.String nonce
        15: .line 307
            aconst_null
            astore 5 /* nc */
        start local 5 // java.lang.String nc
        16: .line 308
            aconst_null
            astore 6 /* cnonce */
        start local 6 // java.lang.String cnonce
        17: .line 309
            aconst_null
            astore 7 /* qop */
        start local 7 // java.lang.String qop
        18: .line 310
            aconst_null
            astore 8 /* realmName */
        start local 8 // java.lang.String realmName
        19: .line 311
            aconst_null
            astore 9 /* md5a2 */
        start local 9 // java.lang.String md5a2
        20: .line 312
            aconst_null
            astore 10 /* authMethod */
        start local 10 // java.lang.String authMethod
        21: .line 315
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.callbackHandler:Ljavax/security/auth/callback/CallbackHandler;
            aload 1 /* callbacks */
            invokeinterface javax.security.auth.callback.CallbackHandler.handle:([Ljavax/security/auth/callback/Callback;)V
        22: .line 316
            aload 1 /* callbacks */
            iconst_0
            aaload
            checkcast javax.security.auth.callback.NameCallback
            invokevirtual javax.security.auth.callback.NameCallback.getName:()Ljava/lang/String;
            astore 2 /* username */
        23: .line 318
            new java.lang.String
            dup
            aload 1 /* callbacks */
            iconst_1
            aaload
            checkcast javax.security.auth.callback.PasswordCallback
            invokevirtual javax.security.auth.callback.PasswordCallback.getPassword:()[C
            invokespecial java.lang.String.<init>:([C)V
        24: .line 317
            astore 3 /* password */
        25: .line 319
            aload 1 /* callbacks */
            iconst_2
            aaload
            checkcast javax.security.auth.callback.TextInputCallback
            invokevirtual javax.security.auth.callback.TextInputCallback.getText:()Ljava/lang/String;
            astore 4 /* nonce */
        26: .line 320
            aload 1 /* callbacks */
            iconst_3
            aaload
            checkcast javax.security.auth.callback.TextInputCallback
            invokevirtual javax.security.auth.callback.TextInputCallback.getText:()Ljava/lang/String;
            astore 5 /* nc */
        27: .line 321
            aload 1 /* callbacks */
            iconst_4
            aaload
            checkcast javax.security.auth.callback.TextInputCallback
            invokevirtual javax.security.auth.callback.TextInputCallback.getText:()Ljava/lang/String;
            astore 6 /* cnonce */
        28: .line 322
            aload 1 /* callbacks */
            iconst_5
            aaload
            checkcast javax.security.auth.callback.TextInputCallback
            invokevirtual javax.security.auth.callback.TextInputCallback.getText:()Ljava/lang/String;
            astore 7 /* qop */
        29: .line 323
            aload 1 /* callbacks */
            bipush 6
            aaload
            checkcast javax.security.auth.callback.TextInputCallback
            invokevirtual javax.security.auth.callback.TextInputCallback.getText:()Ljava/lang/String;
            astore 8 /* realmName */
        30: .line 324
            aload 1 /* callbacks */
            bipush 7
            aaload
            checkcast javax.security.auth.callback.TextInputCallback
            invokevirtual javax.security.auth.callback.TextInputCallback.getText:()Ljava/lang/String;
            astore 9 /* md5a2 */
        31: .line 325
            aload 1 /* callbacks */
            bipush 8
            aaload
            checkcast javax.security.auth.callback.TextInputCallback
            invokevirtual javax.security.auth.callback.TextInputCallback.getText:()Ljava/lang/String;
            astore 10 /* authMethod */
        32: .line 326
            goto 35
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule javax.security.auth.callback.Callback[] java.lang.String java.lang.String java.lang.String java.lang.String java.lang.String java.lang.String java.lang.String java.lang.String java.lang.String
      StackMap stack: java.lang.Exception
        33: astore 11 /* e */
        start local 11 // java.lang.Exception e
        34: .line 327
            new javax.security.auth.login.LoginException
            dup
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.sm:Lorg/apache/tomcat/util/res/StringManager;
            ldc "jaasMemoryLoginModule.callbackHandlerError"
            iconst_1
            anewarray java.lang.Object
            dup
            iconst_0
            aload 11 /* e */
            invokevirtual java.lang.Exception.toString:()Ljava/lang/String;
            aastore
            invokevirtual org.apache.tomcat.util.res.StringManager.getString:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            invokespecial javax.security.auth.login.LoginException.<init>:(Ljava/lang/String;)V
            athrow
        end local 11 // java.lang.Exception e
        35: .line 331
      StackMap locals:
      StackMap stack:
            aload 10 /* authMethod */
            ifnonnull 38
        36: .line 333
            aload 0 /* this */
            aload 0 /* this */
            aload 2 /* username */
            aload 3 /* password */
            invokespecial org.apache.catalina.realm.MemoryRealm.authenticate:(Ljava/lang/String;Ljava/lang/String;)Ljava/security/Principal;
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
        37: .line 334
            goto 47
      StackMap locals:
      StackMap stack:
        38: aload 10 /* authMethod */
            ldc "DIGEST"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 43
        39: .line 335
            aload 0 /* this */
            aload 0 /* this */
            aload 2 /* username */
            aload 3 /* password */
            aload 4 /* nonce */
            aload 5 /* nc */
        40: .line 336
            aload 6 /* cnonce */
            aload 7 /* qop */
            aload 8 /* realmName */
            aload 9 /* md5a2 */
        41: .line 335
            invokespecial org.apache.catalina.realm.MemoryRealm.authenticate:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/security/Principal;
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
        42: .line 337
            goto 47
      StackMap locals:
      StackMap stack:
        43: aload 10 /* authMethod */
            ldc "CLIENT_CERT"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 46
        44: .line 338
            aload 0 /* this */
            aload 0 /* this */
            aload 2 /* username */
            invokespecial org.apache.catalina.realm.MemoryRealm.getPrincipal:(Ljava/lang/String;)Ljava/security/Principal;
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
        45: .line 339
            goto 47
        46: .line 340
      StackMap locals:
      StackMap stack:
            new javax.security.auth.login.LoginException
            dup
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.sm:Lorg/apache/tomcat/util/res/StringManager;
            ldc "jaasMemoryLoginModule.unknownAuthenticationMethod"
            invokevirtual org.apache.tomcat.util.res.StringManager.getString:(Ljava/lang/String;)Ljava/lang/String;
            invokespecial javax.security.auth.login.LoginException.<init>:(Ljava/lang/String;)V
            athrow
        47: .line 343
      StackMap locals:
      StackMap stack:
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            invokeinterface org.apache.juli.logging.Log.isDebugEnabled:()Z
            ifeq 49
        48: .line 344
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            new java.lang.StringBuilder
            dup
            ldc "login "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 2 /* username */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc " "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokeinterface org.apache.juli.logging.Log.debug:(Ljava/lang/Object;)V
        49: .line 348
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            ifnull 51
        50: .line 349
            iconst_1
            ireturn
        51: .line 351
      StackMap locals:
      StackMap stack:
            new javax.security.auth.login.FailedLoginException
            dup
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.sm:Lorg/apache/tomcat/util/res/StringManager;
            ldc "jaasMemoryLoginModule.invalidCredentials"
            invokevirtual org.apache.tomcat.util.res.StringManager.getString:(Ljava/lang/String;)Ljava/lang/String;
            invokespecial javax.security.auth.login.FailedLoginException.<init>:(Ljava/lang/String;)V
            athrow
        end local 10 // java.lang.String authMethod
        end local 9 // java.lang.String md5a2
        end local 8 // java.lang.String realmName
        end local 7 // java.lang.String qop
        end local 6 // java.lang.String cnonce
        end local 5 // java.lang.String nc
        end local 4 // java.lang.String nonce
        end local 3 // java.lang.String password
        end local 2 // java.lang.String username
        end local 1 // javax.security.auth.callback.Callback[] callbacks
        end local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   52     0        this  Lorg/apache/catalina/realm/JAASMemoryLoginModule;
            3   52     1   callbacks  [Ljavax/security/auth/callback/Callback;
           13   52     2    username  Ljava/lang/String;
           14   52     3    password  Ljava/lang/String;
           15   52     4       nonce  Ljava/lang/String;
           16   52     5          nc  Ljava/lang/String;
           17   52     6      cnonce  Ljava/lang/String;
           18   52     7         qop  Ljava/lang/String;
           19   52     8   realmName  Ljava/lang/String;
           20   52     9       md5a2  Ljava/lang/String;
           21   52    10  authMethod  Ljava/lang/String;
           34   35    11           e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
          21    32      33  Class java.io.IOException
          21    32      33  Class javax.security.auth.callback.UnsupportedCallbackException
    Exceptions:
      throws javax.security.auth.login.LoginException

  public boolean logout();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
         0: .line 366
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.subject:Ljavax/security/auth/Subject;
            invokevirtual javax.security.auth.Subject.getPrincipals:()Ljava/util/Set;
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
            invokeinterface java.util.Set.remove:(Ljava/lang/Object;)Z
            pop
         1: .line 367
            aload 0 /* this */
            iconst_0
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.committed:Z
         2: .line 368
            aload 0 /* this */
            aconst_null
            putfield org.apache.catalina.realm.JAASMemoryLoginModule.principal:Ljava/security/Principal;
         3: .line 369
            iconst_1
            ireturn
        end local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/catalina/realm/JAASMemoryLoginModule;
    Exceptions:
      throws javax.security.auth.login.LoginException

  protected void load();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=7, locals=5, args_size=1
        start local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
         0: .line 381
            new java.io.File
            dup
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.pathname:Ljava/lang/String;
            invokespecial java.io.File.<init>:(Ljava/lang/String;)V
            astore 1 /* file */
        start local 1 // java.io.File file
         1: .line 382
            aload 1 /* file */
            invokevirtual java.io.File.isAbsolute:()Z
            ifne 7
         2: .line 383
            aload 0 /* this */
            invokevirtual org.apache.catalina.realm.JAASMemoryLoginModule.getCatalinaBase:()Ljava/lang/String;
            astore 2 /* catalinaBase */
        start local 2 // java.lang.String catalinaBase
         3: .line 384
            aload 2 /* catalinaBase */
            ifnonnull 6
         4: .line 385
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.sm:Lorg/apache/tomcat/util/res/StringManager;
            ldc "jaasMemoryLoginModule.noCatalinaBase"
            iconst_1
            anewarray java.lang.Object
            dup
            iconst_0
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.pathname:Ljava/lang/String;
            aastore
            invokevirtual org.apache.tomcat.util.res.StringManager.getString:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            invokeinterface org.apache.juli.logging.Log.error:(Ljava/lang/Object;)V
         5: .line 386
            return
         6: .line 388
      StackMap locals: java.io.File java.lang.String
      StackMap stack:
            new java.io.File
            dup
            aload 2 /* catalinaBase */
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.pathname:Ljava/lang/String;
            invokespecial java.io.File.<init>:(Ljava/lang/String;Ljava/lang/String;)V
            astore 1 /* file */
        end local 2 // java.lang.String catalinaBase
         7: .line 391
      StackMap locals:
      StackMap stack:
            aload 1 /* file */
            invokevirtual java.io.File.canRead:()Z
            ifne 10
         8: .line 392
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.sm:Lorg/apache/tomcat/util/res/StringManager;
            ldc "jaasMemoryLoginModule.noConfig"
            iconst_1
            anewarray java.lang.Object
            dup
            iconst_0
            aload 1 /* file */
            invokevirtual java.io.File.getAbsolutePath:()Ljava/lang/String;
            aastore
            invokevirtual org.apache.tomcat.util.res.StringManager.getString:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            invokeinterface org.apache.juli.logging.Log.error:(Ljava/lang/Object;)V
         9: .line 393
            return
        10: .line 397
      StackMap locals:
      StackMap stack:
            new org.apache.tomcat.util.digester.Digester
            dup
            invokespecial org.apache.tomcat.util.digester.Digester.<init>:()V
            astore 2 /* digester */
        start local 2 // org.apache.tomcat.util.digester.Digester digester
        11: .line 398
            aload 2 /* digester */
            iconst_0
            invokevirtual org.apache.tomcat.util.digester.Digester.setValidating:(Z)V
        12: .line 399
            aload 2 /* digester */
            new org.apache.catalina.realm.MemoryRuleSet
            dup
            invokespecial org.apache.catalina.realm.MemoryRuleSet.<init>:()V
            invokevirtual org.apache.tomcat.util.digester.Digester.addRuleSet:(Lorg/apache/tomcat/util/digester/RuleSet;)V
        13: .line 401
            aload 2 /* digester */
            aload 0 /* this */
            invokevirtual org.apache.tomcat.util.digester.Digester.push:(Ljava/lang/Object;)V
        14: .line 402
            aload 2 /* digester */
            aload 1 /* file */
            invokevirtual org.apache.tomcat.util.digester.Digester.parse:(Ljava/io/File;)Ljava/lang/Object;
            pop
        15: .line 403
            goto 22
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule java.io.File org.apache.tomcat.util.digester.Digester
      StackMap stack: java.lang.Exception
        16: astore 3 /* e */
        start local 3 // java.lang.Exception e
        17: .line 404
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.log:Lorg/apache/juli/logging/Log;
            getstatic org.apache.catalina.realm.JAASMemoryLoginModule.sm:Lorg/apache/tomcat/util/res/StringManager;
            ldc "jaasMemoryLoginModule.parseError"
            iconst_1
            anewarray java.lang.Object
            dup
            iconst_0
            aload 1 /* file */
            invokevirtual java.io.File.getAbsolutePath:()Ljava/lang/String;
            aastore
            invokevirtual org.apache.tomcat.util.res.StringManager.getString:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            aload 3 /* e */
            invokeinterface org.apache.juli.logging.Log.error:(Ljava/lang/Object;Ljava/lang/Throwable;)V
        end local 3 // java.lang.Exception e
        18: .line 406
            aload 2 /* digester */
            invokevirtual org.apache.tomcat.util.digester.Digester.reset:()V
            goto 23
        19: .line 405
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 4
        20: .line 406
            aload 2 /* digester */
            invokevirtual org.apache.tomcat.util.digester.Digester.reset:()V
        21: .line 407
            aload 4
            athrow
        22: .line 406
      StackMap locals:
      StackMap stack:
            aload 2 /* digester */
            invokevirtual org.apache.tomcat.util.digester.Digester.reset:()V
        23: .line 408
      StackMap locals:
      StackMap stack:
            return
        end local 2 // org.apache.tomcat.util.digester.Digester digester
        end local 1 // java.io.File file
        end local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   24     0          this  Lorg/apache/catalina/realm/JAASMemoryLoginModule;
            1   24     1          file  Ljava/io/File;
            3    7     2  catalinaBase  Ljava/lang/String;
           11   24     2      digester  Lorg/apache/tomcat/util/digester/Digester;
           17   18     3             e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
          13    15      16  Class java.lang.Exception
          13    18      19  any

  private java.lang.String getCatalinaBase();
    descriptor: ()Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=3, args_size=1
        start local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
         0: .line 415
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.callbackHandler:Ljavax/security/auth/callback/CallbackHandler;
            ifnonnull 2
         1: .line 416
            aconst_null
            areturn
         2: .line 419
      StackMap locals:
      StackMap stack:
            iconst_1
            anewarray javax.security.auth.callback.Callback
            astore 1 /* callbacks */
        start local 1 // javax.security.auth.callback.Callback[] callbacks
         3: .line 420
            aload 1 /* callbacks */
            iconst_0
            new javax.security.auth.callback.TextInputCallback
            dup
            ldc "catalinaBase"
            invokespecial javax.security.auth.callback.TextInputCallback.<init>:(Ljava/lang/String;)V
            aastore
         4: .line 422
            aconst_null
            astore 2 /* result */
        start local 2 // java.lang.String result
         5: .line 425
            aload 0 /* this */
            getfield org.apache.catalina.realm.JAASMemoryLoginModule.callbackHandler:Ljavax/security/auth/callback/CallbackHandler;
            aload 1 /* callbacks */
            invokeinterface javax.security.auth.callback.CallbackHandler.handle:([Ljavax/security/auth/callback/Callback;)V
         6: .line 426
            aload 1 /* callbacks */
            iconst_0
            aaload
            checkcast javax.security.auth.callback.TextInputCallback
            invokevirtual javax.security.auth.callback.TextInputCallback.getText:()Ljava/lang/String;
            astore 2 /* result */
         7: .line 427
            goto 10
      StackMap locals: org.apache.catalina.realm.JAASMemoryLoginModule javax.security.auth.callback.Callback[] java.lang.String
      StackMap stack: java.lang.Exception
         8: pop
         9: .line 428
            aconst_null
            areturn
        10: .line 431
      StackMap locals:
      StackMap stack:
            aload 2 /* result */
            areturn
        end local 2 // java.lang.String result
        end local 1 // javax.security.auth.callback.Callback[] callbacks
        end local 0 // org.apache.catalina.realm.JAASMemoryLoginModule this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   11     0       this  Lorg/apache/catalina/realm/JAASMemoryLoginModule;
            3   11     1  callbacks  [Ljavax/security/auth/callback/Callback;
            5   11     2     result  Ljava/lang/String;
      Exception table:
        from    to  target  type
           5     7       8  Class java.io.IOException
           5     7       8  Class javax.security.auth.callback.UnsupportedCallbackException
}
SourceFile: "JAASMemoryLoginModule.java"
InnerClasses:
  public abstract Entry = java.util.Map$Entry of java.util.Map