"jsp-api-2.1.jar - jar not loaded" can be ignored? Which are the conseguences?

Question

At knowage start in console and catalina log, is show a lot of rows similar to this:

mar 26, 2018 11:31:55 AM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(C:\Knowage\Knowage-Server-CE\webapps\knowagecommonjengine\WEB-INF\lib\jsp-api-2.1.jar) - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending class: javax/el/Expression.class

"Knowage" seems to work correcly, but is userful to have some asnwers:
1) the message can ignored?
2) some funtions is lost? (if true how to solve)?

Thank you i advance

Answer 1

As you can see from the loggind level, that message is categorized as INFO message.

No functionalities are lost. You can safely ignore the message. Our team will anyway have a look at it internally to catch the issue.

Thanks for reporting.

Comments

Hi Alessandro,

do you have an update on this message "jar not loaded" please?

i have the same and more web applications are not deployed with above message and seem functionality is missing. I'd like to start to work with Location Intelligence but I do not see anything related to it in Knowage interface.
e.g. as described in:
- https://knowage-suite.readthedocs.io/en/latest/functionalities-guide/location-intelligence/#template-building-with-gis-designer, I do not see Analysis menu, nor Geo-referenced analysis
- Knowage_6.x_CE_Manual.pdf, page 91, Fig 39. I have only LOV input and Manual input. Map input is simply missing

I assume it can be related to not loaded knowagegeoreportengine and following jar not loaded?

INFO: Deploying web application directory C:\Program Files\Knowage-Server-CE\webapps\knowagegeoreportengine
Jan 01, 2019 1:51:36 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(C:\Program Files\Knowage-Server-CE\webapps\knowagegeoreportengine\WEB-INF\lib\jsp-api-2.1.jar) - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending class: javax/el/Expression.class

thank you for any advise

Env. is Knowage CE 6.2.1, JDK 8.192, Windows Server 2016 Datacenter