From 44b170125dfa5ee3189c220a433f2c48a4338727 Mon Sep 17 00:00:00 2001
From: Erik Hatcher <ehatcher@apache.org>
Date: Wed, 6 Feb 2002 21:47:00 +0000
Subject: [PATCH] Fix for #6288 NullPointerException if no environment
 variables found

Patch supplied by jimbuuck@netscape.net


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271191 13f79535-47bb-0310-9956-ffa450edef68
---
 src/main/org/apache/tools/ant/taskdefs/Execute.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/org/apache/tools/ant/taskdefs/Execute.java b/src/main/org/apache/tools/ant/taskdefs/Execute.java
index f50d62461..50f32ffe6 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Execute.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Execute.java
@@ -209,7 +209,9 @@ public class Execute {
                 }
             }
             // Since we "look ahead" before adding, there's one last env var.
-            procEnvironment.addElement(var);
+            if (var != null) {
+                procEnvironment.addElement(var);
+            }
         }
         catch (java.io.IOException exc) {
             exc.printStackTrace();