[opencms-dev] Error with upgrade from 8.5.1 to 8.5.2

[Carlos Merino]

I have no error during upgrade but after restart my servlet container 
(Tomcat 7...) I have this error in the logs...

ERROR [.opencms.jsp.util.CmsErrorBean: 265] No se pudo cargar 
org/opencms/jsp/util/errorpage.properties
java.lang.NullPointerException
         at java.util.Properties$LineReader.readLine(Properties.java:418)
         at java.util.Properties.load0(Properties.java:337)
         at java.util.Properties.load(Properties.java:325)
         at org.opencms.jsp.util.CmsErrorBean.toHtml(CmsErrorBean.java:263)
         at 
org.opencms.main.OpenCmsCore.createErrorBox(OpenCmsCore.java:2035)
         at 
org.opencms.main.OpenCmsCore.errorHandling(OpenCmsCore.java:2110)
         at org.opencms.main.OpenCmsCore.showResource(OpenCmsCore.java:1686)
         at org.opencms.main.OpenCmsServlet.doGet(OpenCmsServlet.java:153)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
         at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
         at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
         at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
         at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
         at 
org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java:305)
         at 
org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:83)
         at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
         at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
         at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
         at 
org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200) at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
         at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) 
at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
         at java.lang.Thread.run(Thread.java:619)


but I have checked that errorpage.properties exists  :-((


any suggestion??