Program: 52331
Project: 52331
Buggy source:
/** 
 * Creates a new MySQLAuthenticationProvider that reads and writes authentication data to a MySQL database defined by properties in guacamole.properties.
 * @throws GuacamoleException If a required property is missing, oran error occurs while parsing a property.
 */
public MySQLAuthenticationProvider() throws GuacamoleException {
  final Properties myBatisProperties=new Properties();
  final Properties driverProperties=new Properties();
  myBatisProperties.setProperty("String_Node_Str","String_Node_Str");
  myBatisProperties.setProperty("String_Node_Str",GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_HOSTNAME));
  myBatisProperties.setProperty("String_Node_Str",String.valueOf(GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_PORT)));
  myBatisProperties.setProperty("String_Node_Str",GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_DATABASE));
  myBatisProperties.setProperty("String_Node_Str",GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_USERNAME));
  myBatisProperties.setProperty("String_Node_Str",GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_PASSWORD));
  myBatisProperties.setProperty("String_Node_Str","String_Node_Str");
  driverProperties.setProperty("String_Node_Str","String_Node_Str");
  injector=Guice.createInjector(JdbcHelper.MySQL,new Module(){
    @Override public void configure(    Binder binder){
      Names.bindProperties(binder,myBatisProperties);
      binder.bind(Properties.class).annotatedWith(Names.named("String_Node_Str")).toInstance(driverProperties);
    }
  }
,new MyBatisModule(){
    @Override protected void initialize(){
      bindDataSourceProviderType(PooledDataSourceProvider.class);
      bindTransactionFactoryType(JdbcTransactionFactory.class);
      addMapperClass(ConnectionHistoryMapper.class);
      addMapperClass(ConnectionMapper.class);
      addMapperClass(ConnectionGroupMapper.class);
      addMapperClass(ConnectionParameterMapper.class);
      addMapperClass(ConnectionPermissionMapper.class);
      addMapperClass(SystemPermissionMapper.class);
      addMapperClass(UserMapper.class);
      addMapperClass(UserPermissionMapper.class);
      bind(MySQLUserContext.class);
      bind(UserDirectory.class);
      bind(MySQLUser.class);
      bind(SaltService.class).to(SecureRandomSaltService.class);
      bind(PasswordEncryptionService.class).to(SHA256PasswordEncryptionService.class);
      bind(PermissionCheckService.class);
      bind(ConnectionService.class);
      bind(ConnectionGroupService.class);
      bind(UserService.class);
      bind(ActiveConnectionMap.class).toInstance(activeConnectionMap);
    }
  }
);
}

Fixed version (ground truth):
/** 
 * Creates a new MySQLAuthenticationProvider that reads and writes authentication data to a MySQL database defined by properties in guacamole.properties.
 * @throws GuacamoleException If a required property is missing, oran error occurs while parsing a property.
 */
public MySQLAuthenticationProvider() throws GuacamoleException {
  final Properties myBatisProperties=new Properties();
  final Properties driverProperties=new Properties();
  myBatisProperties.setProperty("String_Node_Str","String_Node_Str");
  myBatisProperties.setProperty("String_Node_Str",GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_HOSTNAME));
  myBatisProperties.setProperty("String_Node_Str",String.valueOf(GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_PORT)));
  myBatisProperties.setProperty("String_Node_Str",GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_DATABASE));
  myBatisProperties.setProperty("String_Node_Str",GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_USERNAME));
  myBatisProperties.setProperty("String_Node_Str",GuacamoleProperties.getRequiredProperty(MySQLGuacamoleProperties.MYSQL_PASSWORD));
  myBatisProperties.setProperty("String_Node_Str","String_Node_Str");
  driverProperties.setProperty("String_Node_Str","String_Node_Str");
  injector=Guice.createInjector(JdbcHelper.MySQL,new Module(){
    @Override public void configure(    Binder binder){
      Names.bindProperties(binder,myBatisProperties);
      binder.bind(Properties.class).annotatedWith(Names.named("String_Node_Str")).toInstance(driverProperties);
    }
  }
,new MyBatisModule(){
    @Override protected void initialize(){
      bindDataSourceProviderType(PooledDataSourceProvider.class);
      bindTransactionFactoryType(JdbcTransactionFactory.class);
      addMapperClass(ConnectionHistoryMapper.class);
      addMapperClass(ConnectionMapper.class);
      addMapperClass(ConnectionGroupMapper.class);
      addMapperClass(ConnectionGroupPermissionMapper.class);
      addMapperClass(ConnectionParameterMapper.class);
      addMapperClass(ConnectionPermissionMapper.class);
      addMapperClass(SystemPermissionMapper.class);
      addMapperClass(UserMapper.class);
      addMapperClass(UserPermissionMapper.class);
      bind(MySQLUserContext.class);
      bind(UserDirectory.class);
      bind(MySQLUser.class);
      bind(SaltService.class).to(SecureRandomSaltService.class);
      bind(PasswordEncryptionService.class).to(SHA256PasswordEncryptionService.class);
      bind(PermissionCheckService.class);
      bind(ConnectionService.class);
      bind(ConnectionGroupService.class);
      bind(UserService.class);
      bind(ActiveConnectionMap.class).toInstance(activeConnectionMap);
    }
  }
);
}