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How to enable Hibernate query parameters logging
legacy How To
Issue Sometimes it can be useful to check which query is executed against the database as well as its parameters. Resolution To show the information in the logs the following has to be done: From Control Panel...
java.lang.IllegalStateException: UT010006: Cannot call getWriter(), getOutputStream() already called
legacy
Issue When this error "java.lang.IllegalStateException: UT010006: Cannot call getWriter(), getOutputStream() already called" occurs? 2021-10-04 09:09:58.095 ERROR [default task-34][IncludeTag:128] Current URL /...
Deploying Liferay DXP 7.3 on JBoss EAP 7.3.0
legacy How To
Issue Detailed steps to Install Liferay DXP on JBoss EAP Environment Liferay DXP 7.3 JBoss EAP 7.3.0 JDK 1.8 Resolution 1. Liferay Home is the folder that consists JBoss server folder. After installing and deploying...
Bidirectional Synchronization with Google Calendar
legacy
Issue How to configure the Calendar widget to get Bidirectional Synchronization with Google Calendar? Environment Liferay DXP 7.0+ Resolution Bidirectional Synchronization with Google Calendar is not supported in...
SSL protocol errors are observed in the browser while attempting to access Liferay at http://localhost:8080
legacy Troubleshooting
Issue This document will discuss some cases where SSL protocol errors are observed in the browser after opening the default address to the Liferay DXP instance (i.e., http://localhost:8080). This is especially true when...
Ext module is not deployed with the cloud deployment process
legacy Troubleshooting
Note: please note that Liferay has renamed its Liferay Experience Could offerings to Liferay SaaS (formerly LXC) and Liferay PaaS (formerly LXC-SM). Issue The modules_ext style projects in workspace will...
Layout module upgrade fails with NoSuchGroupException when moving up to dxp-14 fix pack
legacy Troubleshooting
Issue After installing dxp-14 fix pack, start up fails due to the layout module upgrade failure. ERROR [main][UpgradeStepRegistratorTracker:184] Failed upgrade process for module com.liferay.layout.impl...
Empty string is considered as null in the parameter map
legacy Troubleshooting
Issue Is there any specific reason why the empty String in the parameter map is considered Null? Steps to Reproduce: Deploy the com.mycompany.my.icefaces.portlet. The portlet has a example <ace:datatable> with...
Special Characters are Escaped in Salesforce Chat
legacy Troubleshooting
Issue Special characters are escaped when using the Salesforce Snap-In Chat in Liferay. Environment Liferay DXP Resolution Since Salesforce Snap-In Chat is a third-party add on, and no core Liferay issue has been...
Accessing a Service Builder module from a Spring MVC portlet in Liferay DXP
legacy Troubleshooting
Issue When a Spring MVC portlet is trying to call a Service Builder service, there are java.lang.ClassCastExceptions in the logs. For example: ERROR [http-nio-8080-exec-5][DispatcherPortlet:428] Could not...
Known Issue: Adjusting Calendar Notification Template fields to be greater than 75 characters results in “Portlet is temporarily unavailable" and JDBCExceptionReporter errors
legacy Troubleshooting
Issue When attempting to edit the fields for a calendar email notification template (such as the "From Name" and "From Address" in the "Invite Email" template), if the combined values of the two fields are too long...
Adding custom preferences to Spring MVC Portlet
legacy How To
Issue We've create a new Spring MVC Portlet and we'd like to configure it with some custom portlet preference. How can we do it? Environment Liferay DXP Resolution Once you've created your Spring MVC Portlet you...
"Service "com.liferay.portal.kernel.cache.MultiVMPool" is unavailable" errors in the logs during startup
legacy Troubleshooting
Issue The following error can be seen in the logs multiple times during server startup ERROR [Start Level: Equinox Container: 30e307ea-2db2-001b-1b24-8fe7a9e210b3][ServiceProxyFactory:265] Service...
Startup errors after installing DXP 7.3 Fix Pack 2
legacy Troubleshooting
Issue After installing Fix pack 2, errors like the following are shown in the server boot log: 2021-07-02 08:21:57.763 ERROR...
A servlet matching the filter (servlet.init.private=false)(servlet.type=friendly-url) is unavailable
legacy Troubleshooting
Issue The following WARN message is obtained during the portal startup: 2020-02-07 09:02:43.401 WARN  [http-nio-9090-exec-7][PortalImpl:6752] javax.servlet.ServletException: A servlet matching the filter...
Schedulers are not initialized as intended in a clustered environment
legacy Troubleshooting
Issue In a clustered environment if we restart the nodes at the same time for a deployment, schedulers and information can be lost.  Environment Liferay DXP 7.3 Resolution The issue described above is...
When adding long values to a JSON object using the Liferay API a String with double quotes is being returned
legacy
Issue When generating a new JSON object using the Liferay API (JSONObjectImpl.java) and a new long value is added to it the returned value is a String with double quotes. In this case the user is calling...
NoClassDefFoundError when starting the nodes simultaneously
legacy Troubleshooting
Issue The following error is thrown when the nodes of the cluster are started simultaneously:...
Requires 3.0 opt-in when customizing Control Panel
legacy Troubleshooting
Issue When deploying a module that customizes Control Panel, the changes don't take effect and I get: java.lang.UnsupportedOperationException: Requires 3.0 opt-in. Environment Liferay DXP 7.2 Resolution The...
Error during Liferay startup after updating a config or cfg configuration file in the osgi/configs folder
legacy Troubleshooting
Issue After editing a config or configuration file in the osgi/configs folder, there are unexpected errors during the startup process, that can prevent Liferay from starting correctly The errors detected in 7.2 Fixpack...