Why does this Java code generate a NumberFormatException?

[RemonL]

The following Java program:

import com.constantcontact.components.contacts.Contact;
import com.constantcontact.components.generic.response.ResultSet;
import com.constantcontact.exceptions.service.ConstantContactServiceException;
import com.constantcontact.services.contacts.ContactService;

public class Foo
{
	public static void main (String[] args) throws ConstantContactServiceException
	{
		ContactService cs = new ContactService (args [0], args [1]);
		ResultSet c = cs.getContactByEmail (args [2]);
		System.out.println (c.size ());
	}
}

results in a NumberFormatException:

Exception in thread "main" com.constantcontact.exceptions.service.ConstantContactServiceException: java.lang.NumberFormatException: null
	at com.constantcontact.services.contacts.ContactService.getContactByEmail(ContactService.java:172)
	at com.fmb.constantcontact.Foo.main(Foo.java:13)
Caused by: java.lang.NumberFormatException: null
	at java.lang.Integer.parseInt(Integer.java:417)
	at java.lang.Integer.parseInt(Integer.java:499)
	at com.constantcontact.util.Config.loadProperties(Config.java:148)
	at com.constantcontact.util.Config.(Config.java:23)
	at com.constantcontact.util.Config.instance(Config.java:36)
	at com.constantcontact.services.contacts.ContactService.getContactByEmail(ContactService.java:159)
	... 1 more

This doesn't give me the vaguest clue as to what might be wrong with the code.

The API tester gives me the response I expected.

Can anyone point me in the right direction?

Thanks,

Remon

[Elijah_G · Accepted solution]

Hi Remon,

The error you're seeing is the code having an issue with loading some of the properties that are defined for the SDK that it needs to function. The specific file that's causing the problem is

src/main/resources/ctct_api.properties

and the specific property is

constantcontact.api.httpcodes.emailcampaignschedulecreated=201

The error that you are seeing is stating that the value of that property cannot be parsed as an int, which would lead me to believe that it has been moved, changed, removed, or become corrupted. Are you including the SDK as source files for your project, or are you using a compiled JAR?

Sincerely,

[RemonL]

I downloaded the source fro github but I missed the .properties file. Thanks for setting me on the right track!

PS: Where can I download the compiled jarfile from?

[Elijah_G]

We've recently gotten the lastest version of our Java SDK up on Maven Central so that you can easily include it in projects as a dependency. You can find info here: https://search.maven.org/#artifactdetails%7Ccom.constantcontact%7Cconstantcontact%7C4.2.0%7Cjar

Sincerely,