java.lang.NullPointerException: No authentication header information

Stack Overflow | Manikandan G | 2 years ago
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    java.lang.NullPointerException: No authentication header information

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No authentication header information

      at com.google.gdata.util.AuthenticationException.initFromAuthHeader()
    2. Google Data
      Service.getFeed
      1. com.google.gdata.util.AuthenticationException.initFromAuthHeader(AuthenticationException.java:96)
      2. com.google.gdata.util.AuthenticationException.<init>(AuthenticationException.java:67)
      3. com.google.gdata.client.http.HttpGDataRequest.handleErrorResponse(HttpGDataRequest.java:608)
      4. com.google.gdata.client.http.GoogleGDataRequest.handleErrorResponse(GoogleGDataRequest.java:564)
      5. com.google.gdata.client.http.HttpGDataRequest.checkResponse(HttpGDataRequest.java:560)
      6. com.google.gdata.client.http.HttpGDataRequest.execute(HttpGDataRequest.java:538)
      7. com.google.gdata.client.http.GoogleGDataRequest.execute(GoogleGDataRequest.java:536)
      8. com.google.gdata.client.Service.getFeed(Service.java:1135)
      9. com.google.gdata.client.Service.getFeed(Service.java:1077)
      10. com.google.gdata.client.GoogleService.getFeed(GoogleService.java:676)
      11. com.google.gdata.client.Service.getFeed(Service.java:1034)
      11 frames
    3. com.cohere.getcontacts
      GoogleContactsAccess.main
      1. com.cohere.getcontacts.GoogleContactsAccess.printAllContacts(GoogleContactsAccess.java:59)
      2. com.cohere.getcontacts.GoogleContactsAccess.main(GoogleContactsAccess.java:197)
      2 frames