--- groovy-1.8.9/src/main/org/codehaus/groovy/runtime/MethodClosure.java~	2017-08-23 11:14:43.972873435 +0200

+++ groovy-1.8.9/src/main/org/codehaus/groovy/runtime/MethodClosure.java	2017-08-23 11:21:34.318169659 +0200

@@ -18,6 +18,7 @@

 import groovy.lang.Closure;

 import groovy.lang.MetaMethod;

+import java.io.IOException;

 import java.util.List;

@@ -30,8 +31,10 @@

  */

 public class MethodClosure extends Closure {

+    public static boolean ALLOW_RESOLVE = false;

+

     private String method;

-    

+

     public MethodClosure(Object owner, String method) {

         super(owner);

         this.method = method;

@@ -59,6 +62,20 @@

     protected Object doCall(Object arguments) {

         return InvokerHelper.invokeMethod(getOwner(), method, arguments);

     }

+

+    private Object readResolve() {

+        if (ALLOW_RESOLVE) {

+            return this;

+        }

+        throw new UnsupportedOperationException();

+    }

+

+    private void readObject(java.io.ObjectInputStream stream) throws IOException, ClassNotFoundException {

+        if (ALLOW_RESOLVE) {

+            stream.defaultReadObject();

+        }

+        throw new UnsupportedOperationException();

+    }

     public Object getProperty(String property) {

         if ("method".equals(property)) {