diff --git a/dubbo-common/src/test/resources/META-INF/services/com.alibaba.dubbo.common.extensionloader.ext1.Ext1 b/dubbo-common/src/test/resources/META-INF/services/com.alibaba.dubbo.common.extensionloader.ext1.Ext1
index 7cfd4857232f294e4aff9bf149e3dfbcdf3712af..ab1a421025fab76eaf7eaf9b327cd08baab4f8d6 100644
--- a/dubbo-common/src/test/resources/META-INF/services/com.alibaba.dubbo.common.extensionloader.ext1.Ext1
+++ b/dubbo-common/src/test/resources/META-INF/services/com.alibaba.dubbo.common.extensionloader.ext1.Ext1
@@ -1,3 +1,3 @@
-com.alibaba.dubbo.common.extensionloader.ext1.impl.Ext1Impl1
-com.alibaba.dubbo.common.extensionloader.ext1.impl.Ext1Impl2
-com.alibaba.dubbo.common.extensionloader.ext1.impl.Ext1Impl3
\ No newline at end of file
+com.alibaba.dubbo.common.extensionloader.ext1.impl.Ext1Impl1#Hello World
+com.alibaba.dubbo.common.extensionloader.ext1.impl.Ext1Impl2  # Comment 2
+   com.alibaba.dubbo.common.extensionloader.ext1.impl.Ext1Impl3 # with head space
\ No newline at end of file