handle situation where there is problem with dapi properly

CHANGELOG

+minerva (15.0.1) stable; urgency=medium
+  * Bug fix: when there was problem with DAPI minerva threw unexpected error
+    (#1316) 
+
+ -- Piotr Gawron <piotr.gawron@uni.lu>  Fri, 26 Jun 2020 11:00:00 +0200
+
 minerva (15.0.0) stable; urgency=medium
   * Backward incompatible: old connection to CTD is removed and replaced with
     new Data-API interface that closely check license compliance

annotation/src/main/java/lcsb/mapviewer/annotation/services/dapi/DapiConnectorImpl.java

@@ -220,6 +220,7 @@ public class DapiConnectorImpl extends CachableInterface implements DapiConnecto
       List<String> result = new ArrayList<>();
       String url = DAPI_BASE_URL + "database/";
       String content = getWebPageDownloader().getFromNetwork(url);
+      logger.debug(content);
       JsonArray array = new JsonParser()
           .parse(content)
           .getAsJsonObject()
@@ -230,7 +231,7 @@ public class DapiConnectorImpl extends CachableInterface implements DapiConnecto
         result.add(array.get(i).getAsJsonObject().get("name").getAsString());
       }
       return result;
-    } catch (IOException e) {
+    } catch (Exception e) {
       throw new DapiConnectionException("Problem with accessing dapi", e);
     }
   }