If a file is defined without the ``++USROPN++`` statement then the natural RPG logic will deal with opening and closing it. However, files defined with ``++USROPN++``, must be both explicitly ``++OPEN++``ed and ``++CLOSE++``d.
== Noncompliant Code Example
----
FEWPCCR1 O E PRINTER USROPN
F INFDS(WSFD01)
F INFSR(*PSSR)
C OPEN EWPCCR1
C CLOSE *ALL
/free
open EWPCCR1;
close *ALL;
/end-free
== Compliant Solution
C CLOSE EWPCCR1
close EWPCCR1;
== See
* http://cwe.mitre.org/data/definitions/459.html[MITRE, CWE-459] - Incomplete Cleanup
