From 536a373dea65667acef5c142f5ed4bc6dc6ea1e1 Mon Sep 17 00:00:00 2001
From: Matthew Jason Benson <mbenson@apache.org>
Date: Tue, 27 Dec 2005 16:07:24 +0000
Subject: [PATCH] add clear()

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@359225 13f79535-47bb-0310-9956-ffa450edef68
---
 .../resources/BaseResourceCollectionContainer.java | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/main/org/apache/tools/ant/types/resources/BaseResourceCollectionContainer.java b/src/main/org/apache/tools/ant/types/resources/BaseResourceCollectionContainer.java
index 0f3b666e5..9b14632d3 100755
--- a/src/main/org/apache/tools/ant/types/resources/BaseResourceCollectionContainer.java
+++ b/src/main/org/apache/tools/ant/types/resources/BaseResourceCollectionContainer.java
@@ -55,6 +55,20 @@ public abstract class BaseResourceCollectionContainer
         return cache;
     }
 
+    /**
+     * Clear the container.
+     * @throws BuildException on error.
+     */
+    public synchronized void clear() throws BuildException {
+        if (isReference()) {
+            throw noChildrenAllowed();
+        }
+        rc.clear();
+        FailFast.invalidate(this);
+        coll = null;
+        setChecked(false);
+    }
+
     /**
      * Add a ResourceCollection to the container.
      * @param c the ResourceCollection to add.