make SolrJ-testcases stable (#3627)

test/plugin/containers/jvm-container/docker/run.sh

@@ -72,7 +72,10 @@ export agent_opts="-javaagent:${SCENARIO_HOME}/agent/skywalking-agent.jar
     -Dskywalking.logging.dir=/usr/local/skywalking/scenario/logs
     -Xms256m -Xmx256m ${agent_opts}"
 exec /var/run/${SCENARIO_NAME}/${SCENARIO_START_SCRIPT} 1>/dev/null &
-healthCheck ${SCENARIO_HEALTH_CHECK_URL}
+for HEALTH_CHECK_URL in ${SCENARIO_HEALTH_CHECK_URL};
+do
+    healthCheck $HEALTH_CHECK_URL
+done
 
 echo "To visit entry service"
 curl -s ${SCENARIO_ENTRY_SERVICE}

test/plugin/scenarios/solrj-7.x-scenario/configuration.yml

@@ -15,7 +15,7 @@
 
 type: jvm
 entryService: http://localhost:8080/solrj-scenario/case/solrj
-healthCheck: http://localhost:8080/solrj-scenario/case/healthcheck
+healthCheck: "http://solr-server:8983/solr/mycore/select http://localhost:8080/solrj-scenario/case/healthcheck"
 startScript: ./bin/startup.sh
 framework: solrj
 environment: