After installing UVWC we can spot warning messages in Tomcat log:
WARNING [https-jsse-nio-8443-exec-7] org.apache.catalina.webresources.Cache.getResource Unable to add the resource at [/jars/xmlgraphics-commons.jar] to the cache for web application [/uvwc] because there was insufficient free space available after evicting expired cache entries - consider increasing the maximum size of the cache
Release : 6.x, 7.x
Component : UVWC (Tomcat)
By default Tomcat cacheMaxSize is 10240, you can increase it by adding/modifying the conf/context.xml configuration Tomcat file by adding a block before </Context>:
<Resources cacheMaxSize="51200" cachingAllowed="true"/>
Details extracted from:
https://stackoverflow.com/questions/26893297/tomcat-8-throwing-org-apache-catalina-webresources-cache-getresource-unable-to