From dc49725d6570e95196bd97a0494381ca4192d1f4 Mon Sep 17 00:00:00 2001
From: idgay <idgay>
Date: Fri, 2 May 2008 21:14:16 +0000
Subject: [PATCH] warn about bad message classes

---
 support/sdk/java/net/tinyos/tools/MsgReader.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/support/sdk/java/net/tinyos/tools/MsgReader.java b/support/sdk/java/net/tinyos/tools/MsgReader.java
index 885ee3ee..7c74e0a5 100644
--- a/support/sdk/java/net/tinyos/tools/MsgReader.java
+++ b/support/sdk/java/net/tinyos/tools/MsgReader.java
@@ -93,7 +93,12 @@ public class MsgReader implements net.tinyos.message.MessageListener {
 	    Class c = Class.forName(className);
 	    Object packet = c.newInstance();
 	    Message msg = (Message)packet;
-	    v.addElement(msg);
+	    if (msg.amType() < 0) {
+		System.err.println(className + " does not have an AM type - ignored");
+	    }
+	    else {
+		v.addElement(msg);
+	    }
 	  }
 	  catch (Exception e) {
 	    System.err.println(e);
-- 
2.39.2