Concurrency issue of JRuby ScriptingContainer (LocalContextScope.CONCURRENT)

JRuby ScriptingContainer CONCURRENT issue

/**
 * This will prove the concurrency issue of ScriptingContainer(JRuby) if 
 * more than 1 thread trying to construct ScriptingContainer instance
 * 
 * Require jruby jar to run this.
 * 
 * @author btran
 *
 */

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import org.jruby.embed.LocalContextScope;
import org.jruby.embed.LocalVariableBehavior;
import org.jruby.embed.ScriptingContainer;

public class JRubyConcurrencyFailureTest {
    public static void main(String[] args) {
        ExecutorService executor = Executors.newFixedThreadPool(100);
        for(int i=0; i < 2; i++) {
            executor.execute(new Runnable() {
                @Override
                public void run() {
                    //Will throw NullPointerException if 2 threads construct at the same time...
                    new ScriptingContainer(LocalContextScope.CONCURRENT, LocalVariableBehavior.TRANSIENT, false);
                }
            });
        }
    }
}