java.lang.NullPointerException

whitestein.com | 1 month ago
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    Vaadin UI.access() throws ExecutionException

    Stack Overflow | 3 years ago | Nikolay Kuznetsov
    java.util.concurrent.ExecutionException: java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.whitestein.resdev.vaadin.util.Utils.log()
    2. com.whitestein.resdev
      LspsUI.error
      1. com.whitestein.resdev.vaadin.util.Utils.log(Utils.java:86)
      2. com.whitestein.resdev.vaadin.core.LspsUI.handleError(LspsUI.java:378)
      3. com.whitestein.resdev.vaadin.core.LspsUI.error(LspsUI.java:384)
      3 frames
    3. Vaadin
      UI$3.handleError
      1. com.vaadin.ui.UI$3.handleError(UI.java:1429)
      1 frame
    4. com.vaadin.server
      VaadinSession.access
      1. com.vaadin.server.VaadinSession$FutureAccess.handleError(VaadinSession.java:150)
      2. com.vaadin.server.VaadinService.runPendingAccessTasks(VaadinService.java:1821)
      3. com.vaadin.server.VaadinSession.unlock(VaadinSession.java:1019)
      4. com.vaadin.server.VaadinService.ensureAccessQueuePurged(VaadinService.java:1779)
      5. com.vaadin.server.VaadinService.accessSession(VaadinService.java:1745)
      6. com.vaadin.server.VaadinSession.access(VaadinSession.java:1409)
      6 frames
    5. Vaadin
      UI.access
      1. com.vaadin.ui.UI.access(UI.java:1405)
      1 frame
    6. org.vaadin.addon
      OAuthCallbackRequestHandler.handleRequest
      1. org.vaadin.addon.oauthpopup.OAuthPopupOpener.fireAuthSuccessful(OAuthPopupOpener.java:88)
      2. org.vaadin.addon.oauthpopup.OAuthPopupOpener.access$000(OAuthPopupOpener.java:12)
      3. org.vaadin.addon.oauthpopup.OAuthPopupOpener$1.authSuccessful(OAuthPopupOpener.java:46)
      4. org.vaadin.addon.oauthpopup.OAuthData.fireSuccess(OAuthData.java:213)
      5. org.vaadin.addon.oauthpopup.OAuthData.setVerifier(OAuthData.java:152)
      6. org.vaadin.addon.oauthpopup.OAuthCallbackRequestHandler.handleRequest(OAuthCallbackRequestHandler.java:53)
      6 frames
    7. com.vaadin.server
      VaadinServlet.service
      1. com.vaadin.server.communication.SessionRequestHandler.handleRequest(SessionRequestHandler.java:63)
      2. com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1408)
      3. com.vaadin.server.VaadinServlet.service(VaadinServlet.java:350)
      3 frames