How to send a SOAP UI request from Java code

build.gradle

apply plugin: 'java'

...

dependencies {
    testCompile "com.smartbear.soapui:soapui:5.4.0"
}

...

repositories {
    maven {
        url 'http://www.soapui.org/repository/maven2/'
        artifactUrls 'http://repo1.maven.org/maven2'
    }
    mavenCentral()
}

...

Sample.java

package utils;

import com.eviware.soapui.impl.wsdl.WsdlProject;
import com.eviware.soapui.impl.wsdl.WsdlSubmitContext;
import com.eviware.soapui.model.iface.*;

public class SoapUIRequestSender {

    private WsdlProject _project;

    public SoapUIRequestSender() {
        try {
            _project = new WsdlProject("path-to/soapui-project.xml");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public Response sendRequest(String requestName) throws Exception {
        Interface soapUIInterface = _project.getInterfaceByName("Interface Name");
        Operation operation = soapUIInterface.getOperationByName("Operation Name");
        Request request = operation.getRequestByName("Request Name");
        Submit submit = request.submit(new WsdlSubmitContext(request), false);
        return submit.getResponse();
    }

}