VLO web application cannot instantiate page

[keeloo]

Taken from the 09.08.2013 web application log file:

2013-08-09 00:46:48,291 ERROR [org.apache.wicket.RequestCycle#logRuntimeException:1521?] -
Can't instantiate page using constructor public eu.clarin.cmdi.vlo.pages.
ShowAllFacetValuesPage?(org.apache.wicket.PageParameters?) and
argument selectedFacet = "[subject]" facetMinOccurs = "[2]"
fq = "[organisation:Max Planck Institute for Psycholinguistics;
Volkswagen Foundation, collection:Endangered Languages]"

The log lists another Wicket related error:

2013-08-09 02:34:12,097 ERROR [org.apache.wicket.RequestCycle#logRuntimeException:1521?] -
Error attaching this container for rendering: [Page class =
eu.clarin.cmdi.vlo.pages.FacetedSearchPage?, id = 0, version = 0]
org.apache.wicket.WicketRuntimeException?: Error attaching this container for
rendering: [Page class = eu.clarin.cmdi.vlo.pages.FacetedSearchPage?, id = 0,
version = 0]

And there also was this:
<pre>
2013-08-09 13:59:23,564 ERROR [org.apache.wicket.RequestCycle#logRuntimeException:1521?] -
org.apache.wicket.WicketRuntimeException?: After 1 minute the Pagemap null is still locked by:
Thread[TP-Processor8,5,main], giving up trying to get the page for path:
6:resourceList:1:content:resourceLink:resourceImage
org.apache.wicket.protocol.http.request.InvalidUrlException?: org.apache.wicket.WicketRuntimeException?:
After 1 minute the Pagemap null is still locked by:
Thread[TP-Processor8,5,main], giving up trying to get the page for path:
6:resourceList:1:content:resourceLink:resourceImage
</pre>

After this error, the process caused an out of memory exception::

2013-08-09 13:59:59,188 ERROR [org.apache.wicket.RequestCycle#logRuntimeException:1521?] -
Can't instantiate page using constructor public
eu.clarin.cmdi.vlo.pages.ShowResultPage?(org.apache.wicket.PageParameters?) and
argument q = "[Bengali]" docId = "[hdl:1839/00-0000-0000-0017-
C42B-A@format%3Dcmdi]" fq = "[country:India]"
org.apache.wicket.WicketRuntimeException?:
Can't instantiate page using constructor public eu.clarin.cmdi.vlo.pages.ShowResultPage?(org.apache.wicket.PageParameters?) and
argument q = "[Bengali]"
docId = "[hdl:1839/00-0000-0000-0017-C42B-A@format%3Dcmdi]"
fq = "[country:India]"
.
.
.
Caused by: java.lang.OutOfMemoryError?: GC overhead limit exceeded

[twagoo]

Out of memory issue, already covered by #276