Bugfix in logging

src/main/java/no/nibio/vips/coremanager/service/ManagerResourceImpl.java

@@ -379,7 +379,8 @@ public class ManagerResourceImpl implements ManagerResource{
                 // Deserialize the exception into string
                 String res = resp.readEntity(String.class);
                 // Log it
-                log.setMessage(res.substring(0,2047));
+                Integer substrEnd = Math.min(2047, res.length());
+                log.setMessage(res.substring(0,substrEnd));
                 ControllerGetter.getUserController().storeModelUsageLog(log);
                 // Send exception
                 throw new WebApplicationException(Response.status(resp.getStatus()).entity(res).build());