java.lang.NullPointerException

Stack Overflow | why_vincent | 4 months ago
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  1. 0

    AbstractAppEngineAuthorizationCodeServlet.getUserId(...) throws nullpointer

    Google Groups | 4 months ago | why_vincent via StackOverflow
    java.lang.NullPointerException
  2. 0

    URL not found when running sample code

    Google Groups | 4 months ago | why_vincent via StackOverflow
    java.lang.NullPointerException
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  4. 0

    Service account on Google appengine (java)

    Stack Overflow | 3 years ago | Niek
    java.lang.IllegalArgumentException: URI is not hierarchical at java.io.File.<init>(File.java:418)
  5. 0

    Authentication Failure in /list

    GitHub | 3 years ago | regdoug
    com.google.api.client.googleapis.json.GoogleJsonResponseException: 401 { "code" : 401, "errors" : [ { "domain" : "global", "location" : "Authorization", "locationType" : "header", "message" : "Invalid Credentials", "reason" : "authError" } ], "message" : "Invalid Credentials" }

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.google.api.client.extensions.appengine.auth.oauth2.AbstractAppEngineAuthorizationCodeServlet.getUserId()
    2. com.google.api
      AbstractAuthorizationCodeServlet.service
      1. com.google.api.client.extensions.appengine.auth.oauth2.AbstractAppEngineAuthorizationCodeServlet.getUserId(AbstractAppEngineAuthorizationCodeServlet.java:92)
      2. com.google.api.client.extensions.servlet.auth.oauth2.AbstractAuthorizationCodeServlet.service(AbstractAuthorizationCodeServlet.java:122)
      2 frames
    3. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
      1 frame
    4. Jetty Server
      ServletHolder.handle
      1. org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
      1 frame