When working on JDK-8029891, solutions were sought to avoid cluttering up the Properties JavaDoc with new overridden methods. The @hidden tag was considered, then later rejected, per [1]. Unfortunately, the @hidden tag on java.util.Properties.replace(Object, Object, Object) was not removed from the changes ([2], line 1331), and ended up in the source.

This unintentional @hidden tag should be removed.

1. http://mail.openjdk.java.net/pipermail/core-libs-dev/2016-May/041204.html
2. http://cr.openjdk.java.net/~bchristi/8029891/webrev.6/webrev/src/java.base/share/classes/java/util/Properties.java.sdiff.html