I've run into a problem when trying to inject a session-scoped bean into a request-scoped bean. I've included a MWE at the end of this post and tried to pinpoint the exact situation in which the module stops working.
The first time I deploy the module (which is actually a Liferay portlet) with the injected session-scoped bean, everything works as expected. I can redeploy as much as I like, and it seems to keep on working until I actually let the container create the beans and session. From then on, every time I redeploy I get the following exception:
Caused by: java.lang.IllegalArgumentException: Can not set com.test.sessionscope.TestSessionBean field com.test.sessionscope.TestBean.bean to com.test.sessionscope.TestSessionBean
Injection and scoping is accomplished using Spring, and the used servlet container is Tomcat.
A minimal (not always) working example:
TestSessionBean @Named
@Scope("session")
public class TestSessionBean implements Serializable {
}
TestBean @Named
@Scope("request")
public class TestBean implements Serializable {
@Inject private TestSessionBean bean;
private String name;
@PostConstruct
public void init() {
name = "session test";
}
public String getName() {
return name;
}
}
XHTML <f:view 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>
</h:head>
<h:body>
#{testBean.name}
</h:body>
</f:view>
