Exception: org/postgresql/Driver : Unsupported major.minor version 52.0

change jdk version use openjdk-8


#update-alternatives –config java


Add new Discovery search filter & facet fields in dspace

1- add the field to indeing

edit the files dspace.cfg

The search commands are written as “search.index.# = [name]:[schema].[element].[qualifier]”

add the field in this section

changing these will change your search results

search.index.6 = abstract:dc.description.abstract


2- add the field text in

    <message key=”xmlui.ArtifactBrowser.AdvancedSearch.type_abstract”>abstract</message>
    <message key=”xmlui.ArtifactBrowser.SimpleSearch.filter.abstract”>abstract</message>

3- Creating a new discovery bean

open the file


add the new fitler field to this section

for facet add it in this section
<property name=”sidebarFacets”>
<ref bean=”searchFilterAuthor” />
<ref bean=”searchFilterSubject” />
<ref bean=”searchFilterPublisher” />
<ref bean=”searchFilterIssued” />
<ref bean=”searchFilterAbstract” />


4- then create the field configuration beans
<!–Search filter configuration beans–>
<bean id=”searchFilterAbstract” class=”org.dspace.discovery.configuration.DiscoverySearchFilterFacet”>
<property name=”indexFieldName” value=”abstract”/>
<property name=”metadataFields”>
5- reindex discovery and restart tomcat
./dspace index-discovery -f
service tomcat7 restart