rest - Glassfish and Java EE Webapp 500 error 4 out of 5 times -

i trying make rest service glassfish 4. have soap service , servlet working properly, cannot rest stuff work.

here simple dao:

@remote @webservice public interface ipersondao {      public void createandsave(string fn, string ln, string eid);     public void persist(person p);     public collection<person> getallpeople();     public person getperson(integer id);     public void delete(person p);     public void deletebyid(integer id); }     @stateless @remote(ipersondao.class) @named("memorypersondao") @webservice(endpointinterface = "dummy.server.ipersondao") public class persondao implements ipersondao {     map<integer, person> people;     int id_seq = 1;      /**      *       */     public persondao() {         people = new java.util.hashmap<integer, person>();         /*createandsave("mike", "jones", "2234");         createandsave("joe", "smith", "22314");*/     }      @postconstruct     public void postconstruct() {         createandsave("mike", "jones", "2234");         createandsave("joe", "smith", "22314");     }      private int nextid() {         return id_seq++;     }      /*      * (non-javadoc)      *       * @see dummy.server.ipersondao#createandsave(java.lang.string,      * java.lang.string, java.lang.string)      */     @override     public void createandsave(string fn, string ln, string eid) {         person p = new person();         p.setfirstname(fn);         p.setlastname(ln);         p.setemployeeid(eid);         p.setid(nextid());         persist(p);     }      @override     public person getperson(integer id) {         return people.get(id);     }      /*      * (non-javadoc)      *       * @see dummy.server.ipersondao#persist(dummy.server.person)      */     @override     public void persist(person p) {         if (p.getid() != null) {             p.setid(nextid());         }         people.put(p.getid(), p);     }      /*      * (non-javadoc)      *       * @see dummy.server.ipersondao#getallpeople()      */     @override     public collection<person> getallpeople() {         return people.values();     }      /* (non-javadoc)      * @see dummy.server.ipersondao#delete(dummy.server.person)      */     @override     public void delete(person p) {         deletebyid(p.getid());     }      /* (non-javadoc)      * @see dummy.server.ipersondao#deletebyid(java.lang.integer)      */     @override     public void deletebyid(integer id) {         people.remove(id);     } 

here's rest class

@applicationpath("api") public class personrestservice extends application {     @ejb     ipersondao persondao;      /**      *       */      @override     public set<class<?>> getclasses() {         final set<class<?>> classes = new hashset<class<?>>();         classes.add(personrestservice.class);         return classes;     }      public personrestservice() {     }      @get     @path("people")     public string test() {         return "test ok";     }      public collection<person> getpeople(){         system.err.println("getting people!");         return persondao.getallpeople();     } } 

i have servlet works , soap service works (i can see ?wsdl , ?tester pages). rest url? see in log:

2015-07-07t10:17:32.052-0400|info: registering jersey servlet application, named dummy.server.personrestservice, @ servlet mapping /api/*, application class of same name.

here web.xml (not needed due using annotations):

<?xml version="1.0" encoding="utf-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemalocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">   <display-name>gb</display-name>   <welcome-file-list>     <welcome-file>index.html</welcome-file>     <welcome-file>index.htm</welcome-file>     <welcome-file>index.jsp</welcome-file>     <welcome-file>default.html</welcome-file>     <welcome-file>default.htm</welcome-file>     <welcome-file>default.jsp</welcome-file>   </welcome-file-list> </web-app> 

here glassfish-web.xml

<!doctype glassfish-web-app public "-//glassfish.org//dtd glassfish application server 3.1 servlet 3.0//en" "http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd"> <glassfish-web-app>     <context-root>/gb</context-root> </glassfish-web-app> 

however, cannot figure out rest url. know gives here?