javax.servlet.ServletException: /views/joborder-add.xhtml @37,117 value="#{jobOrderBean.joborder.company.name}": Target Unreachable, 'null' returned null code example

Example: javax.el.PropertyNotFoundException: Target Unreachable, 'null' returned null adf 12.2.1.4

Either #{userController} or #{userController.users} is null.

My cents that #{userController.users} is null. You aren't prepopulating it in your bean. The #{userController} is correctly declared and used as @ManagedBean.

You need to prepopulate it in the postconstruct of the bean:

@PostConstruct
public void init() {
    users = new Iuser();
}

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