diff --git a/components/sbm-core/src/test/java/org/springframework/sbm/project/TestDummyResource.java b/components/sbm-core/src/test/java/org/springframework/sbm/project/TestDummyResource.java
index ff0e60835..fadcad3a9 100644
--- a/components/sbm-core/src/test/java/org/springframework/sbm/project/TestDummyResource.java
+++ b/components/sbm-core/src/test/java/org/springframework/sbm/project/TestDummyResource.java
@@ -62,7 +62,7 @@ private File getFile(TestDummyResource testDummyResource) {
 
     @Override
     public long contentLength() {
-        throw new UnsupportedOperationException();
+        return content.length();
     }
 
     @Override