CREAM should log just the problem and avoid to report the full exception trace because this consumes quickly the logfile "memory" and so implies the log rotation.

example:

01 Apr 2014 08:01:43,152 org.glite.ce.commonj.authz.gjaf.LocalUserPIP - glexec error: [gLExec]: LCMAPS failed. The reason can be found in the syslog.
01 Apr 2014 08:01:43,152 org.glite.ce.commonj.authz.gjaf.ServiceAuthorizationChain - Failed to get the local user id via glexec: glexec error: [gLExec]: LCMAPS failed. The reason can be found in the syslog.
org.glite.ce.commonj.authz.AuthorizationException: Failed to get the local user id via glexec: glexec error: [gLExec]: LCMAPS failed. The reason can be found in the syslog.
at org.glite.ce.commonj.authz.gjaf.LocalUserPIP.collectAttributes(LocalUserPIP.java:329)
at org.glite.ce.commonj.authz.gjaf.ServiceAuthorizationChain.isPermitted(ServiceAuthorizationChain.java:114)
at org.glite.ce.commonj.authz.axis2.AuthorizationHandler.invoke(AuthorizationHandler.java:141)
at org.apache.axis2.engine.Phase.invokeHandler(Phase.java:340)
at org.apache.axis2.engine.Phase.invoke(Phase.java:313)
at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:679)
01 Apr 2014 08:01:43,152 org.glite.ce.commonj.authz.axis2.AuthorizationHandler - Authorization error: Failed to get the local user id via glexec: glexec error: [gLExec]: LCMAPS failed. The reason can be found in th
org.glite.ce.commonj.authz.AuthorizationException: Authorization error: Failed to get the local user id via glexec: glexec error: [gLExec]: LCMAPS failed. The reason can be found in the syslog.
at org.glite.ce.commonj.authz.gjaf.ServiceAuthorizationChain.isPermitted(ServiceAuthorizationChain.java:136)
at org.glite.ce.commonj.authz.axis2.AuthorizationHandler.invoke(AuthorizationHandler.java:141)
at org.apache.axis2.engine.Phase.invokeHandler(Phase.java:340)
at org.apache.axis2.engine.Phase.invoke(Phase.java:313)
at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)