hg: jdk/client: 5076761: JList.setSelectedValue(null, ...) doesn't do anything

[manajit.halder at oracle.com]

Changeset: cf931670015b
Author:    pbansal
Date:      2018-02-15 14:20 +0530
URL:       http://hg.openjdk.java.net/jdk/client/rev/cf931670015b

5076761: JList.setSelectedValue(null, ...) doesn't do anything
Reviewed-by: serb, ssadetsky, psadhukhan

! src/java.desktop/share/classes/javax/swing/JList.java
+ test/jdk/javax/swing/JList/SetSelectedValueTest.java