STY: Style fixes

application/src/main/java/com/indiscale/fdo/manager/service/fdo/FDOApiImpl.java

@@ -13,6 +13,7 @@ import com.indiscale.fdo.manager.api.PidUnresolvableException;
 import com.indiscale.fdo.manager.api.RepositoryConnection;
 import com.indiscale.fdo.manager.api.TokenAuthenticationInfo;
 import com.indiscale.fdo.manager.api.UnknownRepositoryException;
+import com.indiscale.fdo.manager.api.UnsuccessfulOperationException;
 import com.indiscale.fdo.manager.api.ValidationException;
 import com.indiscale.fdo.manager.service.BaseController;
 import com.indiscale.fdo.manager.service.api.model.Links;
@@ -128,7 +129,8 @@ public class FDOApiImpl extends BaseController implements FdoApi {
         return ResponseEntity.noContent().build();
       } else {
         throw new ResponseStatusException(
-            HttpStatus.INTERNAL_SERVER_ERROR, "Could not delete PID " + pid + " due to inability to connect to repository.");
+            HttpStatus.INTERNAL_SERVER_ERROR,
+            "Could not delete PID " + pid + " due to inability to connect to repository.");
       }
     } catch (PidUnresolvableException e) {
       throw new ResponseStatusException(
@@ -155,7 +157,7 @@ public class FDOApiImpl extends BaseController implements FdoApi {
         return ResponseEntity.noContent().build();
       } else {
         throw new ResponseStatusException(
-            HttpStatus.INTERNAL_SERVER_ERROR, "Could not delete PID " + pid);
+            HttpStatus.INTERNAL_SERVER_ERROR, "Could not purge PID " + pid);
       }
     } catch (PidUnresolvableException e) {
       throw new ResponseStatusException(