Fernando Dominguez

It makes total sense.
Thanks a lot.

Hi there,

I'm having  memory issues  trying to deploy an application using a WAR with a lot of libraries in it.

My question is, does the server load each library when it needs it or are all libraries  loaded by default at the time of deployment?

btw, I'm using Jboss.

Thanks in advance.

Hi there,

I'm new to JSF and I'm trying to make my first example to work.
I'm using JSF 2.2. I'm deploying it on a wildfly 11 server using eclipse
It's just a simple bean but I get this error:

javax.servlet.ServletException: /index.xhtml @13,59 value="#{userBean.password}": Target Unreachable, identifier 'userBean' resolved to null
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:67)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction$$Lambda$311/510072597.call(Unknown Source)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1526)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction$$Lambda$312/1485449847.call(Unknown Source)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1526)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction$$Lambda$312/1485449847.call(Unknown Source)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:360)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1378)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.el.PropertyNotFoundException: /index.xhtml @13,59 value="#{userBean.password}": Target Unreachable, identifier 'userBean' resolved to null
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:100)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:95)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1046)
at javax.faces.component.UIInput.validate(UIInput.java:976)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1249)
at javax.faces.component.UIInput.processValidators(UIInput.java:712)
at javax.faces.component.UIForm.processValidators(UIForm.java:253)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1261)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1195)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
... 42 more
Caused by: javax.el.PropertyNotFoundException: Target Unreachable, identifier 'userBean' resolved to null
at com.sun.el.parser.AstValue.getTarget(AstValue.java:173)
at com.sun.el.parser.AstValue.getType(AstValue.java:85)
at com.sun.el.ValueExpressionImpl.getType(ValueExpressionImpl.java:201)
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:98)
... 54 more


Here is the code

package controller; import java.io.Serializable; import javax.faces.bean.ManagedBean; import javax.faces.bean.SessionScoped; @ManagedBean @SessionScoped public class UserBean implements Serializable{ private String password; public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }

faces-config.xml

<?xml version="1.0" encoding="UTF-8"?> <faces-config    xmlns="http://xmlns.jcp.org/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd"    version="2.2"> </faces-config>

web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">  <display-name>Faces4</display-name>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>  <servlet>    <servlet-name>Faces Servlet</servlet-name>    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>Faces Servlet</servlet-name>    <url-pattern>/faces/*</url-pattern>  </servlet-mapping> </web-app>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"      xmlns:ui="http://java.sun.com/jsf/facelets"      xmlns:f="http://java.sun.com/jsf/core"      xmlns:h="http://java.sun.com/jsf/html"> <h:head> <title>Prueba formulario</title> </h:head> <body> <h1>Prueba Formulario</h1> <h:form> Password: <h:inputSecret value="#{userBean.password}" /> <h:commandButton action="response" value="OK" /> </h:form> </body> </html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"      xmlns:ui="http://java.sun.com/jsf/facelets"      xmlns:f="http://java.sun.com/jsf/core"      xmlns:h="http://java.sun.com/jsf/html"> <h:head> <title>JSF</title> </h:head> <body> <h1>Texto introducido</h1> <h:outputText value="#{userBean.password}" /> </body> </html>

I have tryed to configure the proyect in several ways.

1- With the libraries provided by the run time
2 -Disabling library configuration and then adding theMojarra libs
3- As a user library
And I always get the same error mensage.

Any suggestions?
Thanks.

Yes, There is a typo there but that is not the problem.

Thanks.

Hello,

I'm writing this lines because I'm having problems trying to make a custom validator  work.

When I refer to the validator in the  line  
<f:validator validatorId="employeeTitleValidater"/>

I get an error message saying that the expression employeeTitleValidor has not been found.

This is the code, everything is locate in the same package:

<?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html"> <h:head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /> <title>Validating Data</title> </h:head> <h:body> <h:form id="employeeForm"> <h1>Java Developer Employee Information</h1> <br/> <h:messages globalOnly="true" errorStyle="color: red" infoStyle="color: green"/> <br/> <h:dataTable id="empTable" var="emp" border="1" value="#{employeeController.employeeList}" renderer="#{employeeController.employeeList.size() > 0}"> <f:facet name="header">Current Employees</f:facet> <h:column id="empNameCol"> <f:facet name="header">Employee</f:facet> <h:outputText id="empName" value="#{emp.employeeFirst} #{emp.employeeLast}"/> </h:column> <h:column id="titleCol"> <f:facet name="header">Title</f:facet> <h:outputText id="title" value="#{emp.employeeTitle}"/> </h:column> </h:dataTable> <p>Please use the form bellow to insert employee information.</p> <h:panelGrid columns="3"> <h:outputLabel for="employeeFirst" value="First:"/> <h:inputText id="employeeFirst" value="#{employeeController.employeeFirst}"> <f:validateLength minimun="3" maximun="30"/> </h:inputText> <h:message for="employeeFirst" errorStyle="color:red"/> <h:outputLabel for="employeeLast" value="last: "/> <h:inputText id="employeeLast" value="#{employeeController.employeeLast}"> <f:validateLength minimun="3" maximun="30"/> </h:inputText> <h:message for="employeelast" errorStyle="color:red"/> <h:outputLabel for="employeeTitle" value="Title (Must ba a Java Position): "/> <h:inputText id="employeeTitle" value="#{employeeController.employeeTitle}"> <f:validator validatorId="employeeTitleValidater"/> </h:inputText> <h:message for="employeeTitle" errorStyle="color:red"/> </h:panelGrid> <h:commandButton id="employeeInsert" action="#{employeeController.insertEmployee}" value="Insert Employee"/> </h:form> </h:body> </html> public class Employee implements Serializable{ private String employeeFirst; private String employeeLast; private String employeeTitle; public Employee(){ employeeFirst = null; employeeLast = null; employeeTitle = null; } public Employee(String first, String last, String title){ employeeFirst = first; employeeLast = last; employeeTitle = title; } public String getEmployeeFirst() { return employeeFirst; } public void setEmployeeFirst(String employeeFirst) { this.employeeFirst = employeeFirst; } public String getEmployeeLast() { return employeeLast; } public void setEmployeeLast(String employeeLast) { this.employeeLast = employeeLast; } public String getEmployeeTitle() { return employeeTitle; } public void setEmployeeTitle(String employeeTitle) { this.employeeTitle = employeeTitle; } } @SessionScoped @ManagedBean(name = "employeeController") public class EmployeeController implements Serializable{ private String employeeFirst; private String employeeLast; private String employeeTitle; private List <Employee> employeeList; public EmployeeController() { employeeFirst = null; employeeLast  = null; employeeTitle = null; employeeList = new ArrayList<>(); } public void insertEmployee(){ Employee emp = new Employee(employeeFirst, employeeLast, employeeTitle); employeeList.add(emp); FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_INFO, "Employee Successfully Added", null); FacesContext.getCurrentInstance().addMessage(null, facesMsg); } } @FacesValidator("employeeTitleValidate") public class EmployeeTitleValidate implements Validator{ @Override public void validate(FacesContext facesContext, UIComponent uiComponent, Object value) throws ValidatorException{ checkTitle(value); } private void checkTitle(Object value){ String title = value.toString(); if (!title.contains("Java")){ String messageText = "Title does not include the word Java"; throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_ERROR, messageText, messageText)); } } }

I'm using wildFly 10 and its libraries.

thanks in advance.

Thanks a lot to both of you for the quick reply.

Hi there,
My reason for writing here is to find out if there is a way to tell a JComboBox to display one property of the bean it is holding.

My JComboBox holds a List of the Bean <Producto> . It is currently displaying the whole properties of the Bean on the screen

This way

codigo=1;descripcion=A;categoria=y;
codigo=2;descripción=B;categoria=z

and so on
is there any any way to tell the JComboBox to display one property only.
I mean, for example description

public class Producto extends Observable{ private String codigo; private String descripcion; private String cotegoria; public String getCotegoria() { return cotegoria; } public void setCotegoria(String cotegoria) { this.cotegoria = cotegoria; } private double precio; private double iva; private long stock; private Date fechaAlta; private Date fechaModificacion; public Date getFechaAlta() { return fechaAlta; } public void setFechaAlta(Date fechaAlta) { this.fechaAlta = fechaAlta; } public Date getFechaModificacion() { return fechaModificacion; } public void setFechaModificacion(Date fechaModificacion) { this.fechaModificacion = fechaModificacion; } public String getCodigo() { return codigo; } public void setCodigo(String codigo) { this.codigo = codigo; } public String getDescripcion() { return descripcion; } public void setDescripcion(String descripcion) { this.descripcion = descripcion; } public double getPrecio() { return precio; } public void setPrecio(double precio) { this.precio = precio; } public double getIva() { return iva; } public void setIva(double iva) { this.iva = iva; } public long getStock() { return stock; } public void setStock(long stock) { this.stock = stock; } JComboBox<Producto> cProducto; Object ops[] = { unidadesTxt, cProducto, "OK", "Cancel"}; int response = JOptionPane.showOptionDialog(this, "Details", "Enter data" , JOptionPane.YES_NO_CANCEL_OPTION, 3, null, ops, "OK");

Thanks in advance

Thank you for your quick reply!

For whatever reason there were any problems creating any pdf I would have to delete all of them.

So, I think is better to make sure that everything goes well before writting to disk.

Thanks.

Hi there,
I’m having a little issue creating PDFS using the itext lib.
import com.itextpdf.text.*; import com.itextpdf.text.pdf.PdfPCell; import com.itextpdf.text.pdf.PdfWriter; import com.itextpdf.text.pdf.PdfPTable; private String archivo = “C:/”; private PdfWriter writer = null; public void createPDF(MyClass arg) throws Exception{ Document documento = new Document(PageSize.LETTER, 80, 80, 75, 75); writer = PdfWriter.getInstance(documento, new FileOutputStream(archivo)); documento.open(); documento.add(createTable(arg)); documento.close(); writer.close(); }

This code creates pdfs in the file system one by one.

Everytime I create one I need to get an instance of new FileOutputStream(archivo).

I would like to create PDFs in memory (object), and after having created all of them, write to disk

Is it possible using this lib without making too many changes?

Thanks

I am really grateful for your interest but have dediced to get rid of that code, I'm going to usue jquery instead.

Thank you.

I tried to run that code in IE 11.

Hello.

I would like to know why IE takes takes such amount of time when there are a lot options to populate the select but firefox do it very fast.

Thanks in advanced.

function mostrarEmisores(){ var aplicacion=document.getElementById("aplicacion"); var url='<%=request.getContextPath()%>/xml/generate_ajaxr?APLICACION='+aplicacion.value; if (window.XMLHttpRequest) req = new XMLHttpRequest(); else if (window.ActiveXObject) req = new ActiveXObject("Microsoft.XMLHTTP"); req.onreadystatechange = processRequest; req.open("GET", url, true); req.send(); } function processRequest(){ if (req.readyState==4){ if (req.status==200) parseMessages(); else alert("no se pudo obtener los datos"); } } function parseMessages(){ var response=req.responseXML; var cboEmisor=document.getElementById("emisor"); cboEmisor.disabled=false; var emisores=response.getElementsByTagName("emisor"); for(i=0;i<emisores.length;i++){ var emisor=emisores[i]; var optionEmisor = document.createElement('OPTION'); optionEmisor.value=emisor.getAttribute("codigo"); optionEmisor.text=emisor.getAttribute("descripcion"); cboEmisor.options[i].innerHTML=optionEmisor.innerHTML; } var cboReceptor=document.getElementById("receptor"); cboReceptor.disabled=false; var receptores=response.getElementsByTagName("receptor"); var selectReceptor = document.createElement('SELECT'); for(i=0;i<receptores.length;i++){ var receptor=receptores[i]; var optionReceptor = document.createElement('OPTION'); optionReceptor.value=receptor.getAttribute("codigo"); optionReceptor.text=receptor.getAttribute("descripcion"); cboReceptor.options[i].innerHTML=optionReceptor.innerHTML; } }

Hello Rakesh.
I few words, window.name is a property of the window object that I used to manage using javascript, but now I'd like manage it using java if it was possible.
I thank you for the attention you paid, but I'm afraid there's not way of getting that property using java.
Thanks.

I'll take your advice, I'll try to find an easier way.

Thanks.

Hello.

I'd like to retrieve window.name in a servlet.

Is it possible?

Thanks.