diff --git a/test/hotspot/jtreg/runtime/Vitals/VitalsUtils.java b/test/hotspot/jtreg/runtime/Vitals/VitalsUtils.java
index 9723ddc8cf8..620a3e41620 100644
--- a/test/hotspot/jtreg/runtime/Vitals/VitalsUtils.java
+++ b/test/hotspot/jtreg/runtime/Vitals/VitalsUtils.java
@@ -73,7 +73,8 @@ static int matchPatterns(String[] lines, int startAtLine, String[] regexes) {
             nLine ++;
         }
         if (nextToMatch < regexes.length) {
-            throw new RuntimeException("Not all matches found. First missing pattern " + nextToMatch + ":" + regexes[nextToMatch]);
+            throw new RuntimeException("Not all matches found. First missing pattern " + nextToMatch + ":" + regexes[nextToMatch] +
+			               "\nOutput: " + String.join("\n", lines));
         }
         return nLine;
     }