diff --git a/test/org/apache/catalina/servlets/TestDefaultServletRfc9110Section14.java b/test/org/apache/catalina/servlets/TestDefaultServletRfc9110Section14.java
index b5eada90373f..5a6d469be7a1 100644
--- a/test/org/apache/catalina/servlets/TestDefaultServletRfc9110Section14.java
+++ b/test/org/apache/catalina/servlets/TestDefaultServletRfc9110Section14.java
@@ -55,7 +55,7 @@ public void testRangeHandlingDefinedMethods() throws Exception {
         String rangeHeader = "bytes=0-10";
         // Get and Head
 
-        requestHeaders.computeIfAbsent("Range", (k) -> List.of(rangeHeader));
+        requestHeaders.put("Range",List.of(rangeHeader));
         int rc = getUrl(path, responseBody, requestHeaders, responseHeaders);
         Assert.assertEquals("Range requests is turn on, SC_PARTIAL_CONTENT of GET is expected",
                 HttpServletResponse.SC_PARTIAL_CONTENT, rc);
@@ -90,7 +90,7 @@ public void testUnsupportedRangeUnit() throws Exception {
         String rangeHeader = "Chars=0-10";
         // Get and Head
 
-        requestHeaders.computeIfAbsent("Range", (k) -> List.of(rangeHeader));
+        requestHeaders.put("Range",List.of(rangeHeader));
         int rc = getUrl(path, responseBody, requestHeaders, responseHeaders);
         Assert.assertEquals(
                 "RFC 9110 - 14.2: An origin server MUST ignore a Range header field that contains a range unit it does not understand. `Chars` is not a understandable RangeUnit, SC_OK is expected",