X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altoslib%2FAltosDebug.java;fp=altoslib%2FAltosDebug.java;h=e58fbaf2eafa12f5f1fd765dbc9ab1c0ddd18029;hp=6784f60abb3793c4de9df2aa07b2b89e3df12058;hb=76fd424e4624cb376ac2cf84b01b77599756680a;hpb=935f769fee351545622e223a283fca64608ca410

diff --git a/altoslib/AltosDebug.java b/altoslib/AltosDebug.java
index 6784f60a..e58fbaf2 100644
--- a/altoslib/AltosDebug.java
+++ b/altoslib/AltosDebug.java
@@ -52,7 +52,7 @@ public class AltosDebug {
 	public static final byte GET_CHIP_ID =		0x68;
 
 
-	AltosLink	link;
+	private AltosLink	link;
 
 	boolean	debug_mode;
 
@@ -112,7 +112,11 @@ public class AltosDebug {
 		int i = 0;
 		int start = 0;
 		while (i < length) {
-			String	line = link.get_reply().trim();
+			String	line = link.get_reply();
+			if (line == null)
+				throw new IOException("No reply");
+
+			line = line.trim();
 			if (!AltosLib.ishex(line) || line.length() % 2 != 0)
 				throw new IOException(
 					String.format
@@ -277,4 +281,4 @@ public class AltosDebug {
 	public AltosDebug (AltosLink link) {
 		this.link = link;
 	}
-}
\ No newline at end of file
+}