diff --git a/core/src/main/java/hudson/Util.java b/core/src/main/java/hudson/Util.java
index 531a764d0322d7b12f3e129341d3fde39ce69fca..213e37276b84fcce94043d1ca619458dbd1c751c 100644
--- a/core/src/main/java/hudson/Util.java
+++ b/core/src/main/java/hudson/Util.java
@@ -243,6 +243,11 @@ public class Util {
         return v;
     }
 
+    public static String removeTrailingSlash(String s) {
+        if(s.endsWith("/")) return s.substring(0,s.length()-1);
+        else                return s;
+    }
+
     /**
      * Write-only buffer.
      */