geoserver 2.9RC1 does not start with imagemap extension installed

Description

Geoserver does not start when using the extension imagemap (geoserver-2.9-RC1-imagemap-plugin.zip). Works fine in 2.9beta1, does not work in 2.9beta2 and 2.9rc1. Tested in Linux and Windows.

An error occurred in the file applicationContext.xml :

Attribute "singleton" must be declared for element type "bean"

Environment

Tested in Linux and Windows.

Status

Assignee

Unassigned

Reporter

Cristiane Andrioli

Triage

None

Fix versions

Affects versions

Components

Priority

Highest
Configure