java.lang.IllegalArgumentException: no JSON input found while trying google calendar Api in java

Question

I downloaded google calendar api sample from http://code.google.com/p/google-api-java-client/source/browse/calendar-cmdline-sample/?repo=samples and created a project in eclipse. Now when i try to run the project am getting java.lang.IllegalArgumentException: no JSON input found at this line

 FileCredentialStore credentialStore = new FileCredentialStore(
        new File(System.getProperty("user.home"), ".credentials/calendar.json"), JSON_FACTORY);

Have any of you tried this example? what is wrong here?

Ashwani Gupta Ashwani Gupta · Accepted Answer · 2012-09-13T06:28:18

This error can be resolved by providing input to the .credentials/calendar.json file. If you manually provided the following entry in the calendar.json , it will work :

{
  "installed": {
    "client_id": "client_id",
    "client_secret": "client_secret"
  }
}

It seems to be the Windows problem which is not allowing to set writable permissions on calendar.json file . The method setWritable(boolean,boolean) is returning false and so is the cause of this problem. Still providing json input manually is not a perfect solutions but your application will work.

java.lang.IllegalArgumentException: no JSON input found while trying google calendar Api in java

3 Answers