fix: check size of chained exception list in getTraceMessage

atsign-foundation · Sep 27, 2022 · 7b9cafa · 7b9cafa
1 parent cfda88a
commit 7b9cafa
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/at_commons/CHANGELOG.md b/at_commons/CHANGELOG.md
@@ -1,5 +1,6 @@
 ## 3.0.26
 * feat: Introduce notifyFetch verb
+* fix: bug in at_exception_stack.dart
 ## 3.0.25
 * fix: update regex to correctly parse negative values in ttl and ttb
 * feat: add clientConfig to from verb syntax

diff --git a/at_commons/lib/src/exception/at_exception_stack.dart b/at_commons/lib/src/exception/at_exception_stack.dart
@@ -17,8 +17,10 @@ class AtExceptionStack implements Comparable<AtChainedException> {
   String getTraceMessage() {
     var size = _exceptionList.length;
     String fullMessage = '';
-    fullMessage =
-        '${getIntentMessage(_exceptionList.first.intent)} caused by\n';
+    if (size > 0) {
+      fullMessage =
+          '${getIntentMessage(_exceptionList.first.intent)} caused by\n';
+    }
     for (AtChainedException element in _exceptionList) {
       size--;
       fullMessage += element.message;