bug# 31972

PropertyHelper data members should be protected, not private

-added protected accessors to the live data, so that we have more of a choke point on their use/abuse.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@348764 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/PropertyHelper.java

@@ -74,6 +74,9 @@ public class PropertyHelper {
     protected PropertyHelper() {
     }
 
+    //override facility for subclasses to put custom hashtables in
+
+
     // --------------------  Hook management  --------------------
 
     /**
@@ -481,6 +484,36 @@ public class PropertyHelper {
         return new Hashtable(userProperties);
     }
 
+    /**
+     * special back door for subclasses, internal access to
+     * the hashtables
+     * @return the live hashtable of all properties
+     */
+    protected Hashtable getInternalProperties() {
+        return properties;
+    }
+
+    /**
+     * special back door for subclasses, internal access to
+     * the hashtables
+     *
+     * @return the live hashtable of user properties
+     */
+    protected Hashtable getInternalUserProperties() {
+        return userProperties;
+    }
+
+    /**
+     * special back door for subclasses, internal access to
+     * the hashtables
+     *
+     * @return the live hashtable inherited properties
+     */
+    protected Hashtable getInternalInheritedProperties() {
+        return inheritedProperties;
+    }
+
+
     /**
      * Copies all user properties that have not been set on the
      * command line or a GUI tool from this instance to the Project