Getting null pointer exception and access_token not found when running Java quick start example

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Prashant

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Mar 15, 2016, 12:10:46 PM3/15/16

to Google Identity Toolkit

Hi,

I have followed steps mentioned at - https://developers.google.com/identity/toolkit/web/quickstart/java.

I am getting below error -

Mar 15, 2016 7:16:59 PM com.google.identitytoolkit.GitkitVerifierManager initVerifiers

WARNING: unable to find token verifier: org.json.JSONException: JSONObject["access_token"] not found.

java.io.IOException: org.json.JSONException: JSONObject["access_token"] not found.

at com.google.identitytoolkit.RpcHelper.downloadCerts(RpcHelper.java:246)

at com.google.identitytoolkit.GitkitVerifierManager.initVerifiers(GitkitVerifierManager.java:75)

at com.google.identitytoolkit.GitkitVerifierManager.findVerifier(GitkitVerifierManager.java:65)

at net.oauth.jsontoken.JsonTokenParser.provideVerifiers(JsonTokenParser.java:230)

at net.oauth.jsontoken.JsonTokenParser.verify(JsonTokenParser.java:102)

at net.oauth.jsontoken.JsonTokenParser.verifyAndDeserialize(JsonTokenParser.java:116)

at com.google.identitytoolkit.JsonTokenHelper.verifyAndDeserialize(JsonTokenHelper.java:54)

at com.google.identitytoolkit.GitkitClient.validateTokenToJson(GitkitClient.java:170)

at com.google.identitytoolkit.GitkitClient.validateToken(GitkitClient.java:184)

at com.google.identitytoolkit.GitkitClient.validateTokenInRequest(GitkitClient.java:218)

at com.google.gitkit.samples.GitkitExample$LoginServlet.doGet(GitkitExample.java:76)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)

at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)

at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)

at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

at org.mortbay.jetty.Server.handle(Server.java:326)

at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)

at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)

at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)

at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)

at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)

at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)

at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Caused by: org.json.JSONException: JSONObject["access_token"] not found.

at org.json.JSONObject.get(JSONObject.java:473)

at org.json.JSONObject.getString(JSONObject.java:654)

at com.google.identitytoolkit.RpcHelper.getAccessToken(RpcHelper.java:275)

at com.google.identitytoolkit.RpcHelper.downloadCerts(RpcHelper.java:242)

... 24 more

2016-03-15 19:16:59.329:WARN::/

java.lang.NullPointerException

at net.oauth.jsontoken.crypto.AsciiStringVerifier.verifySignature(AsciiStringVerifier.java:47)

at net.oauth.jsontoken.JsonTokenParser.signatureIsValid(JsonTokenParser.java:177)

at net.oauth.jsontoken.JsonTokenParser.verify(JsonTokenParser.java:130)

at net.oauth.jsontoken.JsonTokenParser.verify(JsonTokenParser.java:103)