[jboss-user] [JBoss jBPM] - Error in variables list intaskform.xhtml

I am trying to list the controller variables. They are showed ok, but when I try to submit the form, clicking in save button, I got this error. If I delete de inputText line, the controller variables works fine, but I can delete because I need the input in the form. the error says that variableInstances is null, but they are listed ok when enter in the page. Some ideas to solve this problem ? <c:forEach var="variableInstance" items="#{taskBean.taskInstance.variableInstances}" > | <h:outputText value="#{variableInstance.name}"/> | <h:outputText value="#{variableInstance.value}"/> | <h:inputText id="#{variableInstance.nameWithoutBlank}" value="#{variableInstance.value}" alt="#{variableInstance.name}" /> | | </c:forEach> anonymous wrote : 15:34:33,825 ERROR [STDERR] 04/01/2008 15:34:33 com.sun.faces.lifecycle.ProcessValidationsPhase execute | WARNING: /common/taskform.xhtml @33,132 value="#{variableInstance.value}": Target Unreachable, identifier 'variableInstance' resolved to null | javax.el.PropertyNotFoundException: /common/taskform.xhtml @33,132 value="#{variableInstance.value}": Target Unreachable, identifier 'variableInstance' resolved to null | at com.sun.facelets.el.TagValueExpression.getType(TagValueExpression.java:62) | at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:129) | at javax.faces.component.UIInput.getConvertedValue(UIInput.java:936) | at javax.faces.component.UIInput.validate(UIInput.java:861) | at javax.faces.component.UIInput.executeValidate(UIInput.java:1071) | at javax.faces.component.UIInput.processValidators(UIInput.java:663) | at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1040) | at javax.faces.component.UIForm.processValidators(UIForm.java:229) | at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1040) | at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:667) | at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:100) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:244) | at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:113) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) | at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) | at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) | at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) | at java.lang.Thread.run(Thread.java:619) | 15:34:33,826 ERROR [STDERR] 04/01/2008 15:34:33 com.sun.faces.lifecycle.LifecycleImpl phase | WARNING: executePhase(PROCESS_VALIDATIONS 3,com.sun.faces.context.FacesContextImpl@eaaa40) threw exception | javax.faces.FacesException: /common/taskform.xhtml @33,132 value="#{variableInstance.value}": Target Unreachable, identifier 'variableInstance' resolved to null | at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:108) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:244) | at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:113) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) | at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) | at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) | at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) | at java.lang.Thread.run(Thread.java:619) | Caused by: javax.el.PropertyNotFoundException: /common/taskform.xhtml @33,132 value="#{variableInstance.value}": Target Unreachable, identifier 'variableInstance' resolved to null | at com.sun.facelets.el.TagValueExpression.getType(TagValueExpression.java:62) | at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:129) | at javax.faces.component.UIInput.getConvertedValue(UIInput.java:936) | at javax.faces.component.UIInput.validate(UIInput.java:861) | at javax.faces.component.UIInput.executeValidate(UIInput.java:1071) | at javax.faces.component.UIInput.processValidators(UIInput.java:663) | at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1040) | at javax.faces.component.UIForm.processValidators(UIForm.java:229) | at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1040) | at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:667) | at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:100) | ... 25 more | 15:34:33,827 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet threw exception | javax.el.PropertyNotFoundException: /common/taskform.xhtml @33,132 value="#{variableInstance.value}": Target Unreachable, identifier 'variableInstance' resolved to null | at com.sun.facelets.el.TagValueExpression.getType(TagValueExpression.java:62) | at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:129) | at javax.faces.component.UIInput.getConvertedValue(UIInput.java:936) | at javax.faces.component.UIInput.validate(UIInput.java:861) | at javax.faces.component.UIInput.executeValidate(UIInput.java:1071) | at javax.faces.component.UIInput.processValidators(UIInput.java:663) | at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1040) | at javax.faces.component.UIForm.processValidators(UIForm.java:229) | at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1040) | at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:667) | at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:100) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:244) | at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:113) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) | at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) | at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) | at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) | at java.lang.Thread.run(Thread.java:619) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117154#... 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