I have seen Identifying and solving javax.el.PropertyNotFoundException: Target Unreachable
I have followed the steps mentioned there for the use case:
- @Named annotation, using Java EE 6
and everything that is specified there is as it is in my project.
xhtml file; please note I have checked the syntax value="#{course.credits}"
<html xmlns="http://www.w3.org/1999/xhtml" mlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html">
<head><title>Add Course</title></head>
<body>
<h2>Course Details</h2>
<h:form>
<table>
<tr>
<td>Name:</td>
<td><h:inputText id="course_name" value="#{course.name}"/></td>
</tr>
<tr>
<td>Credits:</td>
<td>
<h:inputText id="course_credits"
value="#{course.credits}"/>
</td>
</tr>
<tr>
<td colspan="2"><h:commandButton value="Submit" action="#{course.addCourse}"/></td>
</tr>
</table>
</h:form>
</body>
The @Named("course") bean; please note I have checked the imports:
package packt.jee.eclipse.jms.jsf_bean;
import java.io.Serializable;
import javax.enterprise.context.RequestScoped;
import javax.inject.Inject;
import javax.inject.Named;
import packt.jee.eclipse.jms.dto.CourseDTO;
@Named("course")
@RequestScoped
public class CourseJSFBean implements Serializable {
public static final long serialVersionUID = 2L;
private CourseDTO courseDTO = new CourseDTO();
@Inject
private CourseManagedMsgSenderBean courseMessageSender;
public String getName() {
return this.courseDTO.getName();
}
public void setName(String name) {
this.courseDTO.setName(name);
}
public int getCredits() {
return this.courseDTO.getCredits();
}
public void setCredits(int credits) {
this.courseDTO.setCredits(credits);
}
public void addCourse() throws Exception {
courseMessageSender.addCourse(courseDTO);
}
}
The beans.xml in META-INF/beans.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">
</beans>
I have restarted Eclipse, cleaned the project, restarted the server, but I am still getting this error. Just for the avoidance of doubt the error message is
javax.el.PropertyNotFoundException: Target Unreachable, identifier 'course' resolved to null
Clearly I am making a mistake but I can't see what.
I am using Glassfish 5 with eclipse 4.8 and jdk 8.
Only other thing I can think of is that there is no war file - stuff I've read about solving this error has mentioned stuff like "make sure your war file is in xxx directory" but I have no war file. I'm just adding to the server and right-clicking on the xhtml file and selecting run on server.
Any assistance is appreciated.
EDIT: My 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_4_0.xsd" version="4.0">
<display-name>CourseManagementJMSWeb</display-name>
<welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list>
<servlet>
<servlet-name>JSFServlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>JSFServlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
</web-app>
I have no faces-config.xml.
There are class files in the project directory in glassfish:
I have tried changing the annotation @RequestScoped to @ViewScoped but it did not make any difference.
EDIT 2: My book states that beans.xml goes in WebContent/META-INF:
In any case I already looked to this as a possible cause so I put an identical beans.xml in both META-INF and WEB-INF, but it made no difference:
There is nothing in my book that says anything about deploying any jar, war, or ear file. I have mentioned this already in my question. I am entirely new to this so I do not know whether this is odd or not.
EDIT 3: I have created a small basic test class and xhtml file in the same project and I am getting the same error:
test.TestJSFBean.java:
package test;
import java.io.Serializable;
import javax.enterprise.context.RequestScoped;
import javax.inject.Named;
@Named
@RequestScoped
public class TestJSFBean implements Serializable {
private String name;
public String getName() {
return this.name;
}
public void setName(String name) {
this.name=name;
}
public void add() throws Exception {
System.out.println("TestJSFBean.add");
}
}
test.xhtml:
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html">
<head>
<title>TEST</title>
</head>
<body>
<h2>TEST</h2>
<h:form>
<table>
<tr>
<td>Name:</td><td><h:inputText id="name" value="#{TestJSFBean.name}"/></td>
</tr>
<tr>
<td colspan="2"><h:commandButton value="Submit" action="#{TestJSFBean.add}"/></td>
</tr>
</table>
</h:form>
</body>
</html>
Error:
/test.xhtml @16,65 value="#{TestJSFBean.name}": Target Unreachable, identifier 'TestJSFBean' resolved to null
javax.el.PropertyNotFoundException: /test.xhtml @16,65 value="#{TestJSFBean.name}": Target Unreachable, identifier 'TestJSFBean' resolved to null
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:106)
Edit 4: I have tried
<td>Name:</td><td><h:inputText id="name" value="#{testJSFBean.name}"/></td>
(i.e. rather than "#{TestJSFBean.name}") and that didn't work either:
javax.servlet.ServletException: /test.xhtml @10,79 value="#{testJSFBean.name}": Target Unreachable, identifier 'testJSFBean' resolved to null
