DataError class missing

[uparejiya]

Hi,

I have tried to use java implemetation of HAWK but when i run the code, getting below error. Please find below code snippet and error details:

Code:

import com.wealdtech.hawk.HawkClient;
import com.wealdtech.hawk.HawkCredentials;

public class HAWKTest {
	public static void main(String[] args) {
		HawkCredentials hawkCredentials = new HawkCredentials.Builder().keyId("7hdfdfnV2CmW5a")             .key("c3Lw6U837tmEFrlFdfsdfdsCbB5Tlhnka5g").algorithm(HawkCredentials.Algorithm.SHA256).build();
        HawkClient hawkClient = new HawkClient.Builder().credentials(hawkCredentials).build();
        System.out.println(hawkClient.generateAuthorizationHeader(new URI("demourl"), "POST", null,null, null, null));	
	}
}

Error:

Exception in thread "main" java.lang.NoClassDefFoundError: com/wealdtech/DataError$Bad
at HAWKTest.main(HAWKTest.java:8)
Caused by: java.lang.ClassNotFoundException: com.wealdtech.DataError$Bad
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more