How can I disable auto convertion for request parameters that are of type Integer? I'm not sure but it looks like that Seam perform the conversion during the render response phase. In my component I have this: | @RequestParameter("pn") | @Out(value="pn", required=false) | private Integer pageNumber = -1; | | 17:27:58,181 ERROR [STDERR] Aug 4, 2006 5:27:58 PM com.sun.faces.lifecycle.LifecycleImpl phase | WARNING: phase(RENDER_RESPONSE 6,com.sun.faces.context.FacesContextImpl@a303147) threw exception: javax.faces.el.EvaluationException: javax.faces.convert.ConverterException: j_id0: '-' must be a number consisting of one or more digits. javax.faces.convert.ConverterException: j_id0: '-' must be a number consisting of one or more digits. | com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:91) | org.jboss.seam.core.Pages.callAction(Pages.java:161) | org.jboss.seam.core.Pages.callAction(Pages.java:143) | org.jboss.seam.jsf.AbstractSeamPhaseListener.callPageActions(AbstractSeamPhaseListener.java:128) | org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:98) | org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:50) | org.jboss.seam.jsf.SeamExtendedManagedPersistencePhaseListener.beforePhase(SeamExtendedManagedPersistencePhaseListener.java:38) | com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:249) | com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:159) | javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) | org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) | org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45) | org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:30) | org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) | org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) | org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) | org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) | org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) | org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) | org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) | org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) | org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) | org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) | org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) | org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) | org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) | org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) | java.lang.Thread.run(Thread.java:595) | If that is not possible then I will have to change it to String, parse to int and catch any number format exception. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3963214#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...