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PONucleusUserException when creating Google Calendar Request
 

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  1. PONucleusUserException when creating Google Calendar Request
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    <p>I am trying to get authorized requests to the Google Calendar API to work. I seem to get a credential and all is good, but when I try to use it, I'm told that I'm trying to persist an already persisted object.</p> <p>This is the code for the authorization servlet, where I'm authorizing the user, and performing the request (the callback was called once, subsequent requests don't require it).</p> <pre><code>protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { somethingTest(); response.getOutputStream().println("&lt;html&gt;&lt;head&gt;&lt;title&gt;Hello&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;p&gt;Hello world!&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;"); } void somethingTest(){ Event event = new Event(); event.setSummary("appointment"); event.setLocation("HQ"); ArrayList&lt;EventAttendee&gt; attendees = new ArrayList&lt;EventAttendee&gt;(); attendees.add(new EventAttendee().setEmail(OTHER_ATTENDEE)); event.setAttendees(attendees); DateTime start = DateTime.parseRfc3339("2012-06-05T10:00:00.000+01:00"); DateTime end = DateTime.parseRfc3339("2012-06-05T11:00:00.000+01:00"); event.setStart(new EventDateTime().setDateTime(start).setTimeZone("CEST")); event.setEnd(new EventDateTime().setDateTime(end).setTimeZone("CEST")); event.setRecurrence(Arrays.asList("RRULE:FREQ=WEEKLY;UNTIL=20120801T100000+01:00")); Calendar calendar = Calendar.builder(HTTP_TRANSPORT, JSON_FACTORY) .setApplicationName("CalendarSyncTest/1.0") .setHttpRequestInitializer(getCredential()).build(); try { // NEXT LINE THROWS EXCEPTION Event createdEvent = calendar.events().insert("primary", event).execute(); log.trace("Event created: " + createdEvent.getId()); } catch (IOException e) { log.warn("Exception caught mocking about", e); } } @Override protected String getRedirectUri(HttpServletRequest req) throws ServletException, IOException { log.trace("getRedirectUri()"); GenericUrl url = new GenericUrl(req.getRequestURL().toString()); url.setRawPath("/google-sync/Callback"); return url.build(); } @Override protected AuthorizationCodeFlow initializeFlow() throws ServletException, IOException { log.trace("InitializeFlow()"); javax.jdo.PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory("transactions-optional"); return new GoogleAuthorizationCodeFlow.Builder( HTTP_TRANSPORT, JSON_FACTORY, CLIENT_ID, CLIENT_SECRET, Collections.singleton(CalendarScopes.CALENDAR)).setCredentialStore(new JdoCredentialStore(pmf)) .build(); } @Override protected String getUserId(HttpServletRequest req) throws ServletException, IOException { return USER_EMAIL; } </code></pre> <p>And of course the exception:</p> <pre><code>org.datanucleus.exceptions.NucleusUserException: Object "com.google.api.client.extensions.jdo.auth.oauth2.JdoPersistedCredential@1abf87" being inserted has id [USER_EMAIL HERE] yet an object with this id already exists in the datastore! org.datanucleus.store.xml.XMLPersistenceHandler.insertObject(XMLPersistenceHandler.java:96) org.datanucleus.state.JDOStateManager.internalMakePersistent(JDOStateManager.java:2376) org.datanucleus.state.JDOStateManager.makePersistent(JDOStateManager.java:2352) org.datanucleus.ObjectManagerImpl.persistObjectInternal(ObjectManagerImpl.java:1840) org.datanucleus.ObjectManagerImpl.persistObjectWork(ObjectManagerImpl.java:1689) org.datanucleus.ObjectManagerImpl.persistObject(ObjectManagerImpl.java:1554) org.datanucleus.api.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:740) org.datanucleus.api.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:765) com.google.api.client.extensions.jdo.auth.oauth2.JdoCredentialStore.store(JdoCredentialStore.java:47) com.google.api.client.auth.oauth2.CredentialStoreRefreshListener.makePersistent(CredentialStoreRefreshListener.java:62) com.google.api.client.auth.oauth2.CredentialStoreRefreshListener.onTokenResponse(CredentialStoreRefreshListener.java:48) com.google.api.client.auth.oauth2.Credential.refreshToken(Credential.java:497) com.google.api.client.auth.oauth2.Credential.intercept(Credential.java:255) com.google.api.client.http.HttpRequest.execute(HttpRequest.java:746) com.google.api.client.googleapis.json.GoogleJsonResponseException.execute(GoogleJsonResponseException.java:182) com.google.api.client.googleapis.services.GoogleClient.executeUnparsed(GoogleClient.java:170) com.google.api.client.http.json.JsonHttpRequest.executeUnparsed(JsonHttpRequest.java:163) com.google.api.services.calendar.Calendar$Events$Insert.execute(Calendar.java:1810) com.zylinc.core.googleSync.Test.somethingTest(Test.java:78) com.zylinc.core.googleSync.Test.doGet(Test.java:56) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) com.google.api.client.extensions.servlet.auth.oauth2.AbstractAuthorizationCodeServlet.service(AbstractAuthorizationCodeServlet.java:129) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) </code></pre> <p>I find all this very confusing, especially because the Google documentation is a big mess of deprecated methods that don't quite match each other.</p>
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    1. USMark Gjøl
    1. USMark Gjøl
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    1. COTagging this question as "datanucleus" without the persistence code and class being persisted is kinda pointless. If Google have written calls in their code then the question is for their API, which I'd guess has a Google Group, that'd be the best place to ask
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      1. PONucleusUserException when creating Google Calendar Request
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    2. COThank you, this problem actually resolved itself after wiping all persistent data. However, I don't seem to be able to delete the question myself.
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      1. PONucleusUserException when creating Google Calendar Request
      1. USMark Gjøl
 

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