src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ResourcePoolManager.java

@@ -81,12 +81,12 @@
         @Override
         public Optional<ResourcePoolEntry> findEntry(String path) {
             if (!path.startsWith("/")) {
                 path = "/" + path;
             }
-            if (!path.startsWith("/" + name)) {
-                path = "/" + name + path;
+            if (!path.startsWith("/" + name + "/")) {
+                path = "/" + name + path; // path already starts with '/'
             }
             return Optional.ofNullable(moduleContent.get(path));
         }
 
         @Override