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Resolving ClassNotFound Exceptions in JSPs and TLDs

Issue A ClassNotFound exception occurs when referencing classes from JSPs or TLDs, even when using a wildcard (*) in the import-package header of liferay-plugin-package.properties. Example error message: Unable...

Seeing "A JSON web service action is already registered at" WARN messages after upgrading Liferay

legacy Troubleshooting

Issue After upgrading Liferay, I'm seeing the following WARN message repeatedly in the logs: WARN [main][JSONWebServiceActionsManagerImpl:590] A JSON web service action is already registered at ... Environment...

Not able to get results for internal categories when fetching via APIs

legacy Troubleshooting

Issue Not getting similar results from Headless APIs when filtering content by internal categories. However, everything works fine with Public categories. The following are the steps: 1. Create an Asset...

Upgrade to 2024.Q4.5/6 fails with "Unable to upgrade com.liferay.object.service to 10.2.0 from 10.0.0"

legacy Troubleshooting

Issue I am trying to upgrade to 2024.Q4.5 or 2024.Q4.6. The upgrade fails with the following error: 2025-02-03 15:56:10.160 ERROR [main][UpgradeExecutor:333] Failed upgrade process for module...

SCIM Token Generation Fails with JavaScript Error in French Language

legacy Troubleshooting

Issue When Liferay’s interface language is set to French, clicking the Generate button to create a SCIM access token results in a JavaScript error, preventing the token generation popup from opening. The following...

During portlet WAR deployment getting unresolved requirement errors

legacy Troubleshooting

Issue When deploying a spring portlet WAR using JDK 17 or JDK 21, the following deployment error appears in the Liferay logs: Unresolved requirement: Import-Package:...

User session being logged out while using iframe

legacy Troubleshooting

Issue The user's session is getting logged out while using the iframe. Environment Liferay DXP 2024 Q1.0 Resolution The issue is sometimes related to the web server configuration. Therefore, the below property...

Log4j warnings and error on startup after upgrading to Update 36

legacy Troubleshooting

Issue After upgrading Liferay DXP 7.3 to Update 36, the following warnings and error are printed in the logs on startup: log4j:WARN Continuable parsing error 3 and column 30 log4j:WARN Document root element...

Custom module fails to start with error "Stopping blacklisted bundle"

legacy Troubleshooting

Issue I have deployed a custom module, but it is failing to start and does not work. The logs show this message: Stopping blacklisted bundle my-custom-portlet_1.0.0 Environment Liferay DXP 7.4 Liferay PaaS...

Redirect URL configuration does not persist after a restart

legacy Troubleshooting

Issue We noticed that after changing the Security Mode of Redirect URL configuration from "IP" to "Domain", and subsequently restarting Liferay, the configuration was back to "IP" again. We want to ensure this...

Errors when attempting to create/edit web content from the control panel

legacy Troubleshooting

Issue After to recently migrated from Liferay 7.3 to 2023.q3.7, an error occurs immediately upon entering the edit (or creation) of content (and it continues to reproduce in the JS console when switching languages in...

java.sql.SQLException: Illegal mix of collations for operation 'UNION'

legacy Troubleshooting

NOTE: Be sure to take a backup of your database prior to making any changes. Always test the changes in a lower environment before making changes in production. Making manual changes to the database is not...

Unable to include JSP

legacy Troubleshooting

Issue The following errors are encountered when the user accesses the portal, which increases the log size. ERROR [https-jsse-nio-0.0.0.0-8443-exec-29][DynamicIncludeUtil:81] java.io.IOException: Unable to include...

"Custom Field" data for Navigation Menu is not included, while fetching it from 'Navigation Menus Headless API'

legacy Troubleshooting

Issue When trying to fetch the details of the "Navigation Menus" via the 'getNavigationMenu' Headless API, the 'Custom Field' data is not included in it. Steps to reproduce: 1. Navigate to Control Panel >...

java.lang.Error: factory already defined when starting up 2024.Q2 with JDK 17

legacy Troubleshooting

Issue Start up an environment with Liferay DXP 2024.Q2 and JDK 17. The following error message appears: ERROR [io.undertow.servlet.request] (ServerService Thread Pool -- 78) UT015005: Error invoking method...

Missing default Store

legacy Troubleshooting

Issue When trying to perform an upgrade, the following error appears in logs: ERROR [main][DBUpgrader:70] Missing default Store Environment Quarterly Release: 2023.Q3, 2023.Q4, 2024.Q1, 2024.Q2 Liferay DXP 7.4...

"SAX Security Manager could not be setup" Warns

legacy Troubleshooting

Issue We are finding many Warns "SAX Security Manager could not be setup" in the Liferay logs. How can we resolve these messages? Environment Liferay Quarterly Release 2024 Resolution The observed behavior is a...

DB Upgrade to a Q2 release using JDK 21 results in an error

legacy Troubleshooting

Issue The following error is being encountered when trying to upgrade to a Q2 release running ./db_upgrade_client.sh and using JDK 21 JVM arguments: [-Dfile.encoding=UTF8, -Duser.country=US, -Duser.language=en,...

Integrity constraint violation: unique constraint or index violation: IX_

legacy Troubleshooting

Issue When trying to start a clean Liferay bundle with the Hypersonic database and no portal-ext.properties, the following exception is being encountered: 2024-07-22 18:47:13.741 ERROR...

Libraries missing in DXP 7.3 update 36

legacy Troubleshooting

Issue We have observed a couple of errors, while building our project for DXP 7.3 u36, since there are libraries missing. Especially the library com.liferay.petra.string which is missing for u36. Are those libraries...

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