fix url joiner

service/src/main/java/com/telephoners/krakyournet/ctf/beans/tasks/WebTask.java

@@ -21,7 +21,7 @@ import java.util.List;
 public class WebTask extends Task
 {
     private String url;
-    private final Joiner urlJoiner = Joiner.on("/");
+    private static final Joiner URL_JOINER = Joiner.on("/");
 
     public WebTask(String name, int level, List<Flag> flags, String url)
     {
@@ -35,7 +35,7 @@ public class WebTask extends Task
 
     public String getTextForUser(User user, String path) throws IOException
     {
-        String url = urlJoiner.join(getUrl(), path);
+        String url = URL_JOINER.join(getUrl(), path);
         return StreamUtils.readStream(proxyRequest(url, user));
     }
 

service/src/main/java/com/telephoners/krakyournet/ctf/resources/SolutionsResource.java

@@ -70,7 +70,7 @@ public class SolutionsResource
                 .stream()
                 .collect(Collectors.toMap(
                         Team::getName,
-                        team -> solutionsRepository.getCompletedTasks(team)
+                        solutionsRepository::getCompletedTasks
                 ));
     }
 
@@ -82,7 +82,7 @@ public class SolutionsResource
                 .stream()
                 .collect(Collectors.toMap(
                         Team::getName,
-                        team -> solutionsRepository.getTeamSolutions(team)
+                        solutionsRepository::getTeamSolutions
                 ));
     }
 

service/src/main/java/com/telephoners/krakyournet/ctf/resources/TaskResource.java

 package com.telephoners.krakyournet.ctf.resources;
 
-import com.google.common.base.Joiner;
 import com.telephoners.krakyournet.ctf.beans.User;
 import com.telephoners.krakyournet.ctf.beans.tasks.Task;
 import com.telephoners.krakyournet.ctf.repositories.TasksRepository;