Question

I have 2 beans, one request scoped and 1 session scoped. I’m trying to access the session scoped bean in the request bean by creating a managed-property, but i keep receiving the error:

com.sun.faces.mgbean.ManagedBeanCreationException: Unable to create managed bean tableBacking.  The following problems were found:
     - Property resultsBacking for managed bean tableBacking does not exist.

Here’s my request scoped bean:

public class TableLookupBacking {

    private ResultsBacking resultsBacking;

    public void setResultsBacking(ResultsBacking resultsBacking) {
            this.resultsBacking = resultsBacking;
    }
}

Here’s my session scoped bean:

public class ResultsBacking {
    // mainly strings and ints stored in here with getters/setters
}

Here’s my faces-config.xml

<managed-bean>
    <managed-bean-name>tableBacking</managed-bean-name>
    <managed-bean-class>backing.TableLookupBacking</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
    <managed-property>
        <property-name>resultsBacking</property-name>
        <value>#{resultsBacking}</value>
    </managed-property>
</managed-bean>

<managed-bean>
    <managed-bean-name>resultsBacking</managed-bean-name>
    <managed-bean-class>backing.ResultsBacking</managed-bean-class>
    <managed-bean-scope>session</managed-bean-scope>
</managed-bean>

Answer 1

Sometimes JSF gives up recognizing some properties in our backing beans or bean names theirselves, that’s related to IDE/server/tooling specific problems. When that happens and you have already tried redeploying and cleaning the project many times it can be a trick to rename classes/properties names. After that everything should work again.