Error : Error getting access token for service account: Remote host terminated the handshake, iss:

[dineshsraman]

I'm using below Java snippet to get the Authentication token for Firebase Messaging. But its throwing error during refreshIfExpired method call.

private static String getAccessToken() throws IOException {
	String[] SCOPES = {"https://www.googleapis.com/auth/firebase.messaging"};
    
    GoogleCredentials googleCredentials = GoogleCredentials.fromStream(new FileInputStream("./src/service-account.json")).createScoped(Arrays.asList(SCOPES));
    //googleCredentials.refresh();
    try {
    	googleCredentials.getAuthenticationType();
    	googleCredentials.refreshIfExpired();
    } catch (IOException e) {
    	e.printStackTrace();
    }
    
    return googleCredentials.getAccessToken().getTokenValue();
    
	}

When i remove refreshIfExpired and call getAccessToken directly also same error is coming. Any suggestion. Are these related to jars? As i have uploaded certain jars downloaded from Maven as i do not find anything on google firebase link.

Error at refreshIfExpired step: Error getting access token for service account: Remote host terminated the handshake, iss: firebase-adminsdk-jnf15@***