diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/selector/ContextJNDISelector.java b/logback-classic/src/main/java/ch/qos/logback/classic/selector/ContextJNDISelector.java
index 546074e..aa1cce1 100644
--- a/logback-classic/src/main/java/ch/qos/logback/classic/selector/ContextJNDISelector.java
+++ b/logback-classic/src/main/java/ch/qos/logback/classic/selector/ContextJNDISelector.java
@@ -27,10 +27,14 @@ import javax.naming.Context;
 import javax.naming.NamingException;
 
 import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.classic.gaffer.GafferConfigurator;
+import ch.qos.logback.classic.gaffer.GafferUtil;
 import ch.qos.logback.classic.joran.JoranConfigurator;
 import ch.qos.logback.classic.util.ContextInitializer;
+import ch.qos.logback.classic.util.EnvUtil;
 import ch.qos.logback.classic.util.JNDIUtil;
 import ch.qos.logback.core.joran.spi.JoranException;
+import ch.qos.logback.core.status.ErrorStatus;
 import ch.qos.logback.core.status.InfoStatus;
 import ch.qos.logback.core.status.StatusManager;
 import ch.qos.logback.core.status.WarnStatus;
@@ -154,12 +158,25 @@ public class ContextJNDISelector implements ContextSelector {
   }
 
   private void configureLoggerContextByURL(LoggerContext context, URL url) {
+    if (url.toString().endsWith("groovy")) {
+      if (EnvUtil.isGroovyAvailable()) {
+        // avoid directly referring to GafferConfigurator so as to avoid
+        // loading  groovy.lang.GroovyObject . See also http://jira.qos.ch/browse/LBCLASSIC-214
+        GafferUtil.runGafferConfiguratorOn(context, this, url);
+      } else {
+        StatusManager sm = context.getStatusManager();
+        sm.add(new ErrorStatus("Groovy classes are not available on the class path. ABORTING INITIALIZATION.",
+                context));
+      }
+    }
+    if (url.toString().endsWith("xml")) {
     try {
       JoranConfigurator configurator = new JoranConfigurator();
       context.reset();
       configurator.setContext(context);
       configurator.doConfigure(url);
     } catch (JoranException e) {
+      }
     }
     StatusPrinter.printInCaseOfErrorsOrWarnings(context);
   }