Backport: Exception stacktrace logged when accessing the testsuite-site

When building and starting the 1.06.xx testsuite, opening the site ( http://localhost:8080/site ) logs the following exception stacktrace:

[INFO] [talledLocalContainer] 2015-01-23 22:08:42,466 WARN [http-bio-8080-exec-3] [freemarker.log.Log4JLoggerFactory$Log4JLogger.warn():116] Failed creating a
publicly-accessible property descriptor for org.hippoecm.hst.core.component.HstResponseImpl property response, read method public javax.servlet.ServletResponse
javax.servlet.ServletResponseWrapper.getResponse(), write method public void org.hippoecm.hst.core.component.HstResponseImpl.setResponse(javax.servlet.http.Http
ServletResponse)
[INFO] [talledLocalContainer] java.beans.IntrospectionException: type mismatch between read and write methods
[INFO] [talledLocalContainer] at java.beans.PropertyDescriptor.findPropertyType(PropertyDescriptor.java:659)
[INFO] [talledLocalContainer] at java.beans.PropertyDescriptor.setWriteMethod(PropertyDescriptor.java:326)
[INFO] [talledLocalContainer] at java.beans.PropertyDescriptor.<init>(PropertyDescriptor.java:138)
[INFO] [talledLocalContainer] at freemarker.ext.beans.BeansWrapper.populateClassMapWithPropertyDescriptor(BeansWrapper.java:1255)