From 85ebb8d24e77bb4994b6a273443807de408373fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Alcarraz?= <alcarraz@gmail.com>
Date: Thu, 17 Aug 2023 20:09:46 -0500
Subject: [PATCH] Implement property expansion for mux key.
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Signed-off-by: Andrés Alcarraz <alcarraz@gmail.com>
---
 jpos/src/main/java/org/jpos/q2/iso/QMUX.java | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/jpos/src/main/java/org/jpos/q2/iso/QMUX.java b/jpos/src/main/java/org/jpos/q2/iso/QMUX.java
index 0453a2061b..7e5b43ed2d 100644
--- a/jpos/src/main/java/org/jpos/q2/iso/QMUX.java
+++ b/jpos/src/main/java/org/jpos/q2/iso/QMUX.java
@@ -470,10 +470,9 @@ public void dump (PrintStream p, String indent) {
         metrics.dump (p, indent);
     }
     private String[] toStringArray(String s, String delimiter, String def) {
-        if (s == null)
-            s = def;
+        s = (s != null) ? Environment.get(s) : def; 
         String[] arr = null;
-        if (s != null && s.length() > 0) {
+        if (s != null && !s.isEmpty()) {
             StringTokenizer st;
             if (delimiter != null)
                 st = new StringTokenizer(s, delimiter);