hg: jigsaw/jake/jdk: Fix javadoc warnings

[mandy . chung]

Changeset: 43aa40114786
Author:    mchung
Date:      2016-03-15 20:58 -0700
URL:       http://hg.openjdk.java.net/jigsaw/jake/jdk/rev/43aa40114786

Fix javadoc warnings

! src/jdk.jlink/share/classes/jdk/tools/jlink/plugin/Pool.java