finally got my Post Vote to work without 500 error, the problem was inconsistent spelling of option and options

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

@@ -1,5 +1,6 @@
 package io.zipcoder.tc_spring_poll_application.controller;
 
+import io.zipcoder.tc_spring_poll_application.domain.Option;
 import io.zipcoder.tc_spring_poll_application.domain.Poll;
 import io.zipcoder.tc_spring_poll_application.repositories.PollRepository;
 import org.springframework.http.HttpHeaders;
@@ -34,7 +35,14 @@ public class PollController {
                 .buildAndExpand(poll.getId())
                 .toUri();
         responseHeaders.setLocation(newPollUri);
+
+//        for (Option option: poll.getOption()){
+//            System.out.println(option.toString());
+//        }
+
         return new ResponseEntity<>(null,responseHeaders, HttpStatus.CREATED);
+
+
     }
 
     @RequestMapping(value="/polls/{pollId}", method=RequestMethod.PUT)
@@ -50,4 +58,10 @@ public class PollController {
         return new ResponseEntity<>(HttpStatus.OK);
     }
 
+    @RequestMapping(value="/polls/{pollId}", method=RequestMethod.GET)
+    public ResponseEntity<?> getPoll(@PathVariable Long pollId) {
+        Poll p = pollRepository.findOne(pollId);
+        return new ResponseEntity<> (p, HttpStatus.OK);
+    }
+
 }

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

@@ -0,0 +1,31 @@
+package io.zipcoder.tc_spring_poll_application.controller;
+
+import io.zipcoder.tc_spring_poll_application.domain.Vote;
+import io.zipcoder.tc_spring_poll_application.repositories.VoteRepository;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+
+import javax.inject.Inject;
+
+@RestController
+public class VoteController {
+
+        @Inject
+        private VoteRepository voteRepository;
+
+        @RequestMapping(value = "/polls/{pollId}/votes", method = RequestMethod.POST)
+        public ResponseEntity<?> createVote(@PathVariable Long pollId, @RequestBody Vote
+                vote) {
+            vote = voteRepository.save(vote);
+            // Set the headers for the newly created resource
+            HttpHeaders responseHeaders = new HttpHeaders();
+            responseHeaders.setLocation(ServletUriComponentsBuilder.
+                    fromCurrentRequest().path("/{id}").buildAndExpand(vote.getId()).toUri());
+            return new ResponseEntity<>(null, responseHeaders, HttpStatus.CREATED);
+        }
+    }
+
+

src/main/java/io/zipcoder/tc_spring_poll_application/domain/Option.java

@@ -10,17 +10,17 @@ public class Option {
     @Id
     @GeneratedValue
     @Column(name  = "OPTION_ID")
-            Long id;
+            private Long id;
 
     @Column(name = "OPTION_VALUE")
-            String value;
+           private String value;
 
 
     public Long getId() {
         return id;
     }
 
-    public void setId(long id) {
+    public void setId(Long id) {
         this.id = id;
     }
 

src/main/java/io/zipcoder/tc_spring_poll_application/domain/Poll.java

@@ -9,22 +9,22 @@ public class Poll {
         @Id
         @GeneratedValue
         @Column(name  = "POLL_ID")
-        long id;
+        private Long id;
 
         @Column(name = "QUESTION")
-        String question;
+        private String question;
 
 
         @OneToMany(cascade = CascadeType.ALL)
         @JoinColumn(name = "POLL_ID")
         @OrderBy
-        Set<Option> option;
+        private Set<Option> options;
 
     public long getId() {
         return id;
     }
 
-    public void setId(long id) {
+    public void setId(Long id) {
         this.id = id;
     }
 
@@ -37,11 +37,11 @@ public class Poll {
     }
 
     public Set<Option> getOption() {
-        return option;
+        return options;
     }
 
     public void setOption(Set<Option> option) {
-        this.option = option;
+        this.options = option;
     }
 }
 

src/main/java/io/zipcoder/tc_spring_poll_application/domain/Vote.java

@@ -9,11 +9,11 @@ public class Vote {
     @Id
     @GeneratedValue
     @Column(name = "VOTE_ID")
-    Long id;
+    private Long id;
 
     @ManyToOne
     @JoinColumn(name = "OPTION_ID")
-    Option option;
+    private Option option;
 
     public Long getId() {
         return id;