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Failed to link com/sun/xml/messaging/saaj/soap/SOAPDocumentImpl or Could not initialize class org.apache.cxf.helpers.DOMUtils
Issue When using JBoss as the application server and having customization to extend Web Service (WS), user may get the following issue: Web Service can not be found. When restarting the server, the following error is...
Can I encrypt / hide database password in portal-ext.properties and tomcat server.xml?
Issue Is there any way to hide database password in portal-ext.properties and in tomcat server.xml? Environment Liferay DXP 7.0+ Resolution Recommendation: Use environment variables to pass the database password: One of the...
Can I change the JVM Time Zone?
Issue For business reasons the JVM's Time Zone was set to something other than UTC. Now we are seeing odd behavior across the bundle: A scheduled daily event is off by a day Web Content Articles are showing the...
"Incorrect string value: '\xC2\x80\xC2\x99s ...' for column 'description' at row 1"?
Issue During the upgrade process, you may encounter an error like the following: Incorrect string value: '\xC2\x80\xC2\x99s ...' for column 'description' at row 1 Environment Liferay DXP 7.0+ Resolution The...
Missing Marketplace App Functions in the Control Panel
Issue After restarting the server, customers have reported that several Marketplace functions normally found in the Control Panel are missing. See screenshot: Environment Liferay DXP 7.x Resolution This is because the...
Compressing (Gzipping) js_loader_modules file
Issue js_loader_modules files are taking more time to load which degrades the portal's performance. To identify whether js_loader_modules file is Gzipped or not: Open the portal in Chrome incognito window. Press F12...
Why can I not access my Liferay server at the Friendly URL I set?
Issue A Friendly URL can be set to change the URL that users see when accessing a specific site. However without the Home URL being updated attempting to access the bundle at its base address will return a "Not...
Default View for Calendar Portlet Saves on All Pages
Issue If a user sets the Calendar's "View" configuration, the setting is applied for every instance of the Calendar Portlet instead of just the specific instance of the portlet Environment Liferay DXP...
Unable to deploy Apps because of an "Unable to write ..." error
Issue Cannot deploy certain App/plugins because of an "Unable to write ..." error. Some symptoms of this are: The App just sits in the deploy folder. The following error is reported in the log repeatedly: 2019-04-02...
LAR Import Fails with Error UT000020
Issue Trying to import a LAR file (or any other file type) larger than 10MB fails with the following message on the logs: Unable to parse upload request: UT000020: Connection terminated as request was...
Benchmark Study of Liferay Digital Enterprise 7.0
This whitepaper is a benchmark study of Liferay Digital Enterprise 7.0 and describes optimal configuration, settings, and the methodology used for this study. The whitepaper also contains the results based on the...
How to Upgrade to Liferay DXP from Liferay 6.X
This whitepaper aims to set a framework for Liferay’s recommended upgrade path for your organization. A major technology upgrade is an endeavor requiring a deep analysis of your business requirements, careful planning,...
Liferay DXP 7.1 Upgrade Performance Benchmark
The Liferay Support and Liferay Engineering tuned Liferay 6.2 EE databases for upgrade and tested upgrading them to Liferay DXP 7.1. Databases from several vendors were tested. This whitepaper describes the test...
Upgrading from Liferay DXP 7.0 to 7.1
This paper is a high-level overview of the effort involved in moving from Liferay DXP 7.0 to 7.1. It contains an upgrade checklist, the upgrade steps, and what to do after a successful upgrade. The paper is available...
Removing Product Information Displayed in the HTTP Headers
Issue Customers might want to remove the product information found in the HTTP Headers and in the console logs for security reasons. The information displays: Liferay-Portal: Liferay Digital Experience Platform 7.0.10...
Determining the Page Count and Global References in a Site
Liferay Support does not recommend or endorse specific third-party products over others. Liferay is not responsible for any instructions herein or referenced regarding these products. Any implementation of these...
Updating to Liferay DXP 7.2 SP1 / Fix Pack 2 (or Above) from Liferay DXP 7.2 GA1 or Fix Pack 1
Issue When migrating from 7.2 GA1 or Fix Pack 1 to Liferay DXP 7.2 Fix Pack 2 (ie: SP1) or above, you will be required to run the upgrade tool after installing the patch. The reason for this is, SP1 and FP2 have...
DXP 7.0 Upgrade Reference Guide
An upgrade to Liferay DXP 7.0 gives you access to the latest Liferay technology, complete with all of the newest features, and the assurance of continued support for your Liferay environment. Our Subscription Services...
Liferay Marketplace Will Not Work Without Cookies Enabled
If third-party cookies and site data are blocked then logging into marketplace through the control panel will not work and time out with an error on being unable to connect to the...
Changing the Log Time Zone Without Changing the JVM Time Zone
This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. This...
Limitation: Audience Targeting User Segment Cannot Use Physical Screen Size MDR
This article documents a limitation when viewing content based on a User Segment in the Audience Targeting app that uses the Physical Screen Size attributes as a Mobile Device Rule. It was discovered that users could...
Creating a Backup & Disaster Recovery Plan for Liferay Digital Experience Platforms
This article gives an overview of a backup & disaster recovery environment that is necessary when starting a Liferay Digital Experience Platform (DXP) project. This backup will often be referenced by Liferay Support...
Installing Fix Packs and Hotfixes on Liferay DXP
This document has been updated and ported to Liferay Learn and is no longer maintained here. To install Fix Packs and hotfixes on Liferay DXP, customers must first download the latest...
DXP 7.3 Upgrade Reference Guide
An upgrade to Liferay DXP 7.3 gives you access to the latest Liferay technology, complete with all of the newest features, and the assurance of continued support for your Liferay environment. Our Subscription Services Team...
How to Install and Set up a Local Liferay DXP Instance on Windows or Mac (Video)
Learn how to install and set up a local Liferay DXP instance for the first time. Windows Mac Additional Information Official Documentation: Installing Liferay Liferay Learning Youtube...
Setting up Session Replication in Tomcat With Liferay DXP
The purpose of this article is to provide an example of how to set up a basic Tomcat cluster that has session replication, using built-in Tomcat features. Please note: This example is provided as a courtesy. This...
Using a Web Server With the Liferay Platform
This article documents which properties should be configured if a web server sits in front of Liferay. If you do not set the following properties, you may encounter one of these issues. There could be UI issues such as...
DXP 7.0 Database Portal Properties
This article is intended to provide a list of all the Liferay DXP 7.0 Database properties that can be used to connect your DXP 7.0 installation to various databases. To use any of them, uncomment the...
Managing LDAP Settings Using .config Files
This document has been updated and ported to Liferay Learn and is no longer maintained here. This article documents how to configure LDAP settings using .config files instead of the Control Panel. There are a great...
Permissions Are Not Working Post-Upgrade
After upgrading from Liferay Portal 5.2, permissions settings may act in an undesirable manner. This could include not being able to change permissions, as well as not being able to access the control panel or any other...
Load Balancing Can Return Null
When running Liferay with more than one node on a load balancer, sometimes, when generating urls for buttons, they can receive a incorrect url or sometimes a null value. Resolution...
Rolling Restart - Breaking Changes
Introduction When applying fix packs or hotfixes, rolling restarts are possible if there are no changes to a specific set of clustering classes or no module schema version changes. The following document is a list of...
LDAP settings and upgrading from 5.2.x to 6.x
This article pertains to portals in which LDAP is configured in Liferay Portal 5.2.x and an upgrade is performed. When a user attempts to login, an error is thrown, and the user is not...
Changes in Liferay DXP Clustering
This article documents several changes with the clustering feature that will take effect in Liferay Portal CE 7.0 and Digital Experience Platform 7.0. In addition, this article details changes that may affect...
Managing Distributed Cache in Liferay Portal EE
Liferay Support does not recommend or endorse specific third-party products over others. Liferay is not responsible for any instructions herein or referenced regarding these products. Any implementation of these...
Installing Liferay Portal in a Clustered Environment
Many enterprise environments utilize clustering for both scalability and availability. This article provides specific instructions for installing a basic configuration of Liferay Portal in a pre-existing clustered...
ORMException / StaleObjectStateException is reported
Issue The following ORMException and StaleObjectStateException are reported in the log 2019-03-25 01:59:12.172 ERROR [http-nio-8080-exec-9][MainServlet:525] com.liferay.portal.kernel.exception.SystemException:...
DXP 7.1 Upgrade Reference Guide
An upgrade to Liferay DXP 7.1 gives you access to the latest Liferay technology, complete with all of the newest features, and the assurance of continued support for your Liferay environment. Our Subscription Services...
Why does my portlet not have a version number after it is deployed?
Issue Deploying a .war portlet through the /liferay_home/deploy folder leads to the deployed portlet not having a version number in its file name. Environment Liferay DXP 7.0 de-33+ Liferay DXP 7.1 Resolution A...
I would like to upgrade my portlets to Liferay DXP but can not find where XML Descriptors have been moved to
Issue Upgrading from Liferay 6.2 to Liferay 7.0+ is a significant process. One of the changes implemented is the use of OSGi components. Several XML Descriptors have been converted to OSGi services. Environment...
Resolving a "The expression syntax is invalid" Error During the UpgradeDDMStructure Phase of the Liferay DXP Upgrade Process.
This article describes a known issue in the Forms portlet when upgrading from DXP 7.0 to DXP 7.1+. During the upgrade, a validation error is thrown as follows: Unable to upgrade the visibility expression "equals(Options,...
What HTTP METHODS/VERBS does Liferay DXP use?
Issue Which HTTP Methods does Liferay DXP use? We would like to restrict HTTP traffic using a firewall and do not want to impact Liferay DXP functionalities. Environment Liferay DXP 7.0+ Resolution Liferay DXP...
How do I perform an integration test for customizations for Liferay DXP 7.1?
Issue Our team would like to use the LiferayIntegrationTestRule and perform an integration test. How do we set up an integration test? Environment Liferay DXP 7.1 Resolution Liferay leaves the integration testing...
Preparing a Sybase Database for Liferay
Issue Are there any specific configurations needed when setting up a Sybase database to connect to a Liferay bundle? Environment Sybase 15.7, 16 Liferay Portal 6.1, 6.2 DXP 7.0, 7.1 Resolution Unlike other database...
Disabling Calendar Email Notifications in DXP
Issue In Liferay Portal 6.1, calendar notifications could be disabled using portal-ext.properties In Liferay DXP 7.0+, these properties no longer exist Environment Liferay DXP 7.0+ Resolution NOTE:...
Starting Servers in the Correct Sequence
Issue What is the correct sequence to start up all servers during a restart? Environment DXP 7.0, 7.1 Resolution Sometimes it is necessary to restart some if not all of the servers that Liferay DXP runs on or is...
Virtual Host Login/Logout Properties
This article documents four portal properties that are often used to configure redirection URLs for users. The four descriptions below include the properties, their descriptions, and examples for: Configuring the...
Upgrade Tool Uses Wrong Version of Tomcat
Issue When upgrading to Liferay DXP 7.0 or DXP 7.1 and using the SP1 + Tomcat bundle, the wrong version of Tomcat is suggested by the Upgrade Tool For 7.1 the bundle includes Tomcat 9.0.6, but the...
JDK Certification, Java TCK Compliance, and Liferay
With the release of JDK11, Oracle's new Java SE Support Policy (also see here) brings changes to the Java Enterprise community. The following article outlines Liferay's approach concerning the certification of JDK...
Testing if Liferay Clustering is Working Properly
Issue How can I confirm that my Liferay cluster is working correctly and all nodes displays the same information accurately? Environment DXP 7.x Portal 6.x Resolution There are two ways that to accomplish this: 1....
If a Staging publication is on progress and the server is shut down, publication stays on queue and no further publications are possible
Issue If a publication on staging is made and the server is shut down, the publication will stay on queue on start-up and, even if cancelled, no more staging publications can be made. The following java class stays...
JDK7 Concerns
This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable.  JDK7 is...
Deploying Activation Keys
This document has been updated and ported to Liferay Learn and is no longer maintained here. This article documents the basic instructions for how to deploy your Activation Key via the...
Installing Archived Modules From Liferay's Public Repository
This article is a how-to guide for locating, downloading and installing modules from Liferay’s public repository. Installing modules directly from Liferay’s public repository should be done if the module or application...
SQL Scripts Causing Duplicate Keys
 While using a new instance of the Liferay Portal, some environments may encounter the following error: ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found Resolution This...
Taking Heap Dumps From a JVM
Liferay Support does not recommend or endorse specific third-party products over others. Liferay is not responsible for any instructions herein or referenced regarding these products....
Taking Thread Dumps From a JVM
Liferay Support does not recommend or endorse specific third-party products over others. Liferay is not responsible for any instructions herein or referenced regarding these products....
Liferay Web Proxy Module for Digital Experience Platform 7.1
The Web Proxy Portlet allows web applications to be embedded within a portlet while keeping the user interaction within the portal context. The portlet is deprecated and was removed from Digital Experience Platform...
Managing Distributed Cache in Liferay DXP
This document has been updated and ported to Liferay Learn and is no longer maintained here. This article documents the configuration options for managing distributed cache within Liferay Digital Experience...
Before Opening a Liferay Performance Ticket
The following article outlines a short checklist of questions to ask and steps to take before opening a performance ticket. By taking a moment to go through this checklist before...