From 933c7fa836db9e0280ed53769342680dce7cb061 Mon Sep 17 00:00:00 2001
From: Andrea Marziali <andrea.marziali@datadoghq.com>
Date: Thu, 12 Dec 2024 13:54:48 +0100
Subject: [PATCH] enforce checks

---
 .../trace/instrumentation/liberty20/BundleNameHelper.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dd-java-agent/instrumentation/liberty-20/src/main/java/datadog/trace/instrumentation/liberty20/BundleNameHelper.java b/dd-java-agent/instrumentation/liberty-20/src/main/java/datadog/trace/instrumentation/liberty20/BundleNameHelper.java
index f00e285cc54..6acbed6647b 100644
--- a/dd-java-agent/instrumentation/liberty-20/src/main/java/datadog/trace/instrumentation/liberty20/BundleNameHelper.java
+++ b/dd-java-agent/instrumentation/liberty-20/src/main/java/datadog/trace/instrumentation/liberty20/BundleNameHelper.java
@@ -13,7 +13,7 @@ public static String extractDeploymentName(final ThreadContextClassLoader classL
       return null;
     }
     final int tail = id.lastIndexOf('#');
-    if (tail < 0) {
+    if (tail <= head) {
       return null;
     }
     return id.substring(head + 1, tail);