unable to access java class in groovy script with in soap ui

I am not familiar with groovy script and SOAP UI, this is the reason I am looking for help here for this issue. I have a java class which will send an email, groovy script within SOAP UI has to use this method. I have placed the jar file in the bin/ext folder. Please advise how can rectify this issue. Thanks!

Below is my groovy script

import com.test.email.SendEmail;
String allPorts = testRunner.testCase.testSteps["Properties"].getPropertyValue("all_ports");
log.info(" all ports "+allPorts);
String[] ports = allPorts.split(",");
String placeHolderUrl = "https://test.com:port/ServiceAssuranceService/15.09?wsdl";
String url;
String[] apis = "queryProblem,getProblem".split(",");
String[] scenarios = "EROne,CRTicket".split(",");
for(String port : ports) {
url = placeHolderUrl.replace("port",port);
//log.info(" url "+url);
for(String api : apis){
for(String scenario : scenarios) {
    testRunner.testCase.getTestStepByName(api+" - "+scenario).getHttpRequest().setEndpoint(url);
    try {
        testRunner.runTestStepByName(api+" - "+scenario);
    } catch (Exception e){
        e.printStackTrace();
        log.error(" Failed : "+api+" - "+scenario+" : "+url);
    }
}
 }


SendEmail mail = new SendEmail();

try{
mail.send("test","abc","abc.txt");
 }
 catch(Exception e){
log.error(e);
}
}

my java class

package com.test.email;
public class SendEmail {

private Log log = LogFactory.getLog(SendEmail.class);

@Value("${mailHost}")
private String mailHost;

@Value("${mailAuth}")
private String mailAuth;

@Value("${smtpAuth}")
private String smtpAuth;

@Value("${mailPort}")
private String mailPort;

@Value("${mailFallBack}")
private String mailFallBack;

@Value("${commaDelimitedRecepients}")
private String commaDelimitedRecepients;


public void send(String subject,String body,String fileName) {
        String from = "ops@test.com";

        Properties properties = new Properties();
        properties.put("mail.smtp.host",mailHost);
        properties.put("mail.smtp.auth", mailAuth);
        properties.put("mail.smtp.socketFactory.port", mailPort);
        properties.put("mail.smtp.socketFactory.fallback", mailFallBack);

        Session session = Session.getDefaultInstance(properties);

        try {
            InternetAddress fromAddress = new InternetAddress(from);

            MimeMessage message = new MimeMessage(session);
            message.setFrom(fromAddress);
            message.setSubject(subject);

            String[] recepients = commaDelimitedRecepients.split(",");

            for(String recepient : recepients){
                message.addRecipients(RecipientType.TO,recepient);
            }

            Multipart multiPart = new MimeMultipart();
            MimeBodyPart attachment = new MimeBodyPart();

            if(fileName!=null) {
                DataSource source = new FileDataSource(fileName);
                attachment.setDataHandler(new DataHandler(source));
                attachment.setFileName("EolSync.log");
                multiPart.addBodyPart(attachment);
            }

            if(body!=null){
                    MimeBodyPart content = new MimeBodyPart();
                    content.setContent(body,"text/html");
                    multiPart.addBodyPart(content);
            }
            message.setContent(multiPart);

            message.setRecipients(RecipientType.TO, message.getAllRecipients());
            Transport transport = session.getTransport("smtp");
            transport.connect();
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();
        } catch (Exception e) {
            log.error(" unable to send mailer ",e);         
        }
}


public static void main(String[] args){

    String[] recepients = "ia".split(",");

    for(String recepient : recepients){
        System.out.println(" recepient "+recepient);
    }
}

}

below is the error message

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: Script4.groovy: 1: unable to resolve class com.test.SendEmail @ line 1, column 1. import com.test.SendEmail; ^ org.codehaus.groovy.syntax.SyntaxException: unable to resolve class com.test.SendEmail @ line 1, column 1. at org.codehaus.groovy.ast.ClassCodeVisitorSupport.addError(ClassCodeVisitorSupport.java:146) at org.codehaus.groovy.control.ResolveVisitor.visitClass(ResolveVisitor.java:1145) at org.codehaus.groovy.control.ResolveVisitor.startResolving(ResolveVisitor.java:141) at org.codehaus.groovy.control.CompilationUnit$10.call(CompilationUnit.java:632) at org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:912) at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:574) at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:523) at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:279) at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:258) at groovy.lang.GroovyShell.parseClass(GroovyShell.java:613) at groovy.lang.GroovyShell.parse(GroovyShell.java:625) at groovy.lang.GroovyShell.parse(GroovyShell.java:652) at groovy.lang.GroovyShell.parse(GroovyShell.java:643) at com.eviware.soapui.support.scripting.groovy.SoapUIGroovyScriptEngine.compile(SoapUIGroovyScriptEngine.java:138) at com.eviware.soapui.support.scripting.groovy.SoapUIGroovyScriptEngine.run(SoapUIGroovyScriptEngine.java:89) at com.eviware.soapui.impl.wsdl.teststeps.WsdlGroovyScriptTestStep.run(WsdlGroovyScriptTestStep.java:141) at com.eviware.soapui.impl.wsdl.panels.teststeps.GroovyScriptStepDesktopPanel$RunAction$1.run(GroovyScriptStepDesktopPanel.java:250) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) 1 error