Upgrade to WebOffice 10.9 R5: Key Changes and How to Fix Startup Issues

Starting with WebOffice 10.9 R5, new technical requirements apply:

• Java JDK 21 and Apache Tomcat 11 are required.

These changes ensure the use of the latest stable platform versions, extended support periods, and additional technological benefits.
 

Application Startup Issues after Deployment

If WebOffice does not start or fails to initialize projects after deployment, check the WebOffice log file. If you see the following message:

#2025-11-28 14:08:30,007 FATAL [main                            ]                                                                   17       E868693306T5310002 
APPLI_CAN_NOT_START - Failed to start WebOffice
	caused by Java VM Argument --add-opens java.base/sun.net=ALL-UNNAMED does not exist. Java VM Argument --add-exports java.base/sun.net.www.protocol.http.ntlm=ALL-UNNAMED does not exist. 
Please consult the WebOffice User Manual to configure the required Java VM Arguments for Apache Tomcat:
--add-exports 
--add-opens
Java VM Argument --add-opens java.base/sun.net=ALL-UNNAMED does not exist. Java VM Argument --add-exports java.base/sun.net.www.protocol.http.ntlm=ALL-UNNAMED does not exist. 
Please consult the WebOffice User Manual to configure the required Java VM Arguments for Apache Tomcat:
--add-exports 
--add-opens

	at com.mysynergis.core.util.ThrowableUtil.a(ThrowableUtil.java:80)
	at com.mysynergis.core.util.ThrowableUtil.a(ThrowableUtil.java:75)
	at com.mysynergis.core.application.Application.a(Application.java:327)
	at com.mysynergis.core.application.Application.start(Application.java:268)
	at com.mysynergis.core.application.Application.a(Application.java:142)
	at com.mysynergis.core.application.InitServlet.init(InitServlet.java:46)

this means the required Java VM arguments are missing in your Apache Tomcat configuration.

Solution: Add Java VM Arguments

Open the Apache Tomcat configuration, e.g., using "Tomcat9w.exe" under <Drive>:\Tomcat\bin, and add the following entries under Java → Java Options:

--add-exports=java.base/sun.net.www.protocol.http.ntlm=ALL-UNNAMED
--add-opens=java.base/sun.net=ALL-UNNAMED

These settings are mandatory to ensure WebOffice starts successfully after upgrading to version 10.9 R5.

Further Documentation Links:

• What's New in WebOffice 10.9 R5: https://resources.weboffice.vertigis.com/Documentation/WebOffice/en/index.html?wn109r5.htm
• Upgrade WebOffice 10.9 R4 to 10.9 R5: https://resources.weboffice.vertigis.com/Documentation/WebOffice/en/index.html?wo_upgrade_109r4_to_109r5.htm
• Apache Tomcat Configuration: https://resources.weboffice.vertigis.com/Documentation/WebOffice/en/index.html?req_apache_tomcat_configuration.htm