import java.io.*;
import java.util.*;
import java.util.regex.*;

File mainClass = new File( basedir, "target/classes/MyClass.class" );
if ( !mainClass.isFile() )
{
    throw new FileNotFoundException( "Main class not existent: " + mainClass );
}

File testClass = new File( basedir, "target/test-classes/MyTest.class" );
if ( !testClass.isFile() )
{
    throw new FileNotFoundException( "Test class not existent: " + testClass );
}