I found where it came from : the css cache of mozilla.

It strangely keeps references to old images whose adress contains "4.5.0.CR1" which obviously doesn't exist anymore.

Don't forget to clear the cache by CTRL + F5 after migrating the RF jars !

Hello,

When switching the value of  javax.faces.PROJECT_STAGE from Development to Production in the web.xml, all Richfaces images are missing

For instance :

NetworkError: 500 Erreur Interne de Servlet - http://localhost:8080/myApp/org.richfaces.resources/rfRes/inputBackgroundImage.png?v=4.5.0.CR2&db=eAFjZL!AyMDN-P8!4!83X!4B6f!!GZgAYpAKwQ__&ln=org.richfaces.images

And i have got this java error :

java.lang.NoSuchMethodError: net.sf.ehcache.Element.<init>(Ljava/lang/Object;Ljava/lang/Object;II)V
    at org.richfaces.cache.EhCacheCache.put(EhCacheCache.java:73)
    at org.richfaces.application.CacheProvider.put(CacheProvider.java:66)
    at org.richfaces.resource.ResourceHandlerImpl.handleResourceRequest(ResourceHandlerImpl.java:143)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:190)
    at org.richfaces.webapp.ResourceServlet.httpService(ResourceServlet.java:129)
    at org.richfaces.webapp.ResourceServlet.service(ResourceServlet.java:123)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

What might the cause please ?

Adding the ehcache-2.8.3.jar to the project solve the exception. It occurs with the final version too.

But it seems weird that this error occurs only in Production mode and as far as i know ehcache is not a required lib for rifchfaces or it might have changed with the new version, did it ?