Make sure parmv is not an ArgList and parms always is

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1736048 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/gogo/runtime/src/main/java/org/apache/felix/gogo/runtime/Closure.java b/gogo/runtime/src/main/java/org/apache/felix/gogo/runtime/Closure.java
index b787103..34f70a0 100644
--- a/gogo/runtime/src/main/java/org/apache/felix/gogo/runtime/Closure.java
+++ b/gogo/runtime/src/main/java/org/apache/felix/gogo/runtime/Closure.java
@@ -167,14 +167,14 @@
     {
         if (null != values)
         {
-            parmv = values;
+            parmv = new ArrayList<>(values);
             parms = new ArgList(parmv);
         }
         else if (null != parent)
         {
             // inherit parent closure parameters
-            parms = parent.parms;
-            parmv = parent.parmv;
+            parmv = parent.parmv != null ? new ArrayList<>(parent.parmv) : null;
+            parms = parmv != null ? new ArgList(parmv) : null;
         }
         else
         {
@@ -182,7 +182,7 @@
             Object args = session.get("args");
             if (null != args && args instanceof List<?>)
             {
-                parmv = (List<Object>) args;
+                parmv = new ArrayList<>((List<Object>) args);
                 parms = new ArgList(parmv);
             }
         }