working on 4.3

src/main/java/io/zipcoder/tc_spring_poll_application/controller/ComputeResultController.java

 package io.zipcoder.tc_spring_poll_application.controller;
 
 import io.zipcoder.tc_spring_poll_application.domain.Vote;
+import io.zipcoder.tc_spring_poll_application.dtos.VoteResult;
 import io.zipcoder.tc_spring_poll_application.repositories.VoteRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
         //TODO: Implement algorithm to count votes
         return new ResponseEntity<VoteResult>(voteResult, HttpStatus.OK);
 
+    }
 }

src/main/java/io/zipcoder/tc_spring_poll_application/controller/PollController.java

 package io.zipcoder.tc_spring_poll_application.controller;
 
 import io.zipcoder.tc_spring_poll_application.domain.Poll;
+import io.zipcoder.tc_spring_poll_application.exception.ResourceNotFoundException;
 import io.zipcoder.tc_spring_poll_application.repositories.PollRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpHeaders;
         return new ResponseEntity<>(HttpStatus.OK);
     }
 
+
+    @RequestMapping(method = RequestMethod.GET)
+    public void verifyPoll(Poll poll) throws ResourceNotFoundException {
+        if (pollRepository.findOne(poll.getId()) == null) {
+            throw new ResourceNotFoundException();
+        }
+    }
+
 }

src/main/java/io/zipcoder/tc_spring_poll_application/exception/ResourceNotFoundException.java

+package io.zipcoder.tc_spring_poll_application.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(HttpStatus.NOT_FOUND)
+public class ResourceNotFoundException extends RuntimeException {
+
+    public ResourceNotFoundException() {
+    }
+
+    public ResourceNotFoundException(String message) {
+        super(message);
+    }
+
+    public ResourceNotFoundException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}