Source:
<code>private void createConfigurationProvider() throws ManageDomainsResult { String engineConfigProperties = createTempPropFile(); try { String engineConfigExecutable = utilityConfiguration.getEngineConfigExecutablePath(); String adUserName = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.AdUserName); String domainName = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.DomainName); String ldapSecurityAuthentication = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.LDAPSecurityAuthentication); String adUserPassword = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.AdUserPassword); String adUserId = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.AdUserId); String ldapServers = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.LdapServers); String ldapProviderTypes = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.LDAPProviderTypes); String ldapPort = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.LDAPServerPort); <START> if (ldapPort.equals("")) { <END> ldapPort = DEFAULT_LDAP_SERVER_PORT; } String changePasswordUrl = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.ChangePasswordMsg); configurationProvider = new ConfigurationProvider(adUserName, adUserPassword, domainName, ldapSecurityAuthentication, ldapServers, adUserId, ldapProviderTypes, utilityConfiguration.getEngineConfigExecutablePath(), engineConfigProperties, ldapPort, changePasswordUrl); } catch (Throwable e) { throw new ManageDomainsResult(ManageDomainsResultEnum.FAILED_READING_CURRENT_CONFIGURATION, e.getMessage()); } }</code><technical_language>Please StringUtils.isBlank()</technical_language>

Target:
private void createConfigurationProvider() throws ManageDomainsResult { String engineConfigProperties = createTempPropFile(); try { String engineConfigExecutable = utilityConfiguration.getEngineConfigExecutablePath(); String adUserName = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.AdUserName); String domainName = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.DomainName); String ldapSecurityAuthentication = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.LDAPSecurityAuthentication); String adUserPassword = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.AdUserPassword); String adUserId = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.AdUserId); String ldapServers = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.LdapServers); String ldapProviderTypes = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.LDAPProviderTypes); String ldapPort = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.LDAPServerPort); String changePasswordUrl = getConfigValue(engineConfigExecutable, engineConfigProperties, ConfigValues.ChangePasswordMsg); configurationProvider = new ConfigurationProvider(adUserName, adUserPassword, domainName, ldapSecurityAuthentication, ldapServers, adUserId, ldapProviderTypes, utilityConfiguration.getEngineConfigExecutablePath(), engineConfigProperties, ldapPort, changePasswordUrl); } catch (Throwable e) { throw new ManageDomainsResult(ManageDomainsResultEnum.FAILED_READING_CURRENT_CONFIGURATION, e.getMessage()); } }