--- 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)) {