InDesign Server sampleclient java (SDK) not working

When I try to create and build the project in IntelliJ or eclipse, I'm getting unresolved symbols for the following classes from the SampleClient.java file.

import localhost.Service_wsdl.Service;
import localhost.Service_wsdl.ServiceLocator;
import localhost.Service_wsdl.ServiceStub;


import com.adobe.ns.InDesign.soap.IDSPScriptArg;
import com.adobe.ns.InDesign.soap.RunScriptParameters;
import com.adobe.ns.InDesign.soap.holders.DataHolder;

I also tried to convert the IDSP.wsdl file into java code using "wsimport -keep" command but still did not get all the java files.

Please let me know in case I'm missing some steps. 

I'm able to test run the sampleclient.exe made in C++ language successfully.