The DCPv1 search service is being phased out in favor of DCPv2. The JBoss Help feature needs to migrate to v2 as well.

• the search url needs to be changed to http://dcp2.jboss.org/v2/rest/search?size=100&query= {expression}

  &sys_type=blogpost&sys_type=article&sys_type=solution&sys_type=webpage in org.jboss.tools.central/plugin.xml

• The JSON Parser needs to be updated to the new result format (fields are returned as arrays, we need to get the 1st element now). See https://github.com/jbosstools/jbosstools-base/blob/e0b10e225f070bc11aa1bfba7b8a8712a9c864bb/foundation/plugins/org.jboss.tools.foundation.help.ui/src/org/jboss/tools/foundation/help/ui/internal/search/SearchiskoResultBuilder.java

Bad news is JBDS 9/ JBT 4.3 help search will break as soon as DCPv1 is decommissioned, since the search URL is hard coded in the plugin.xml