no need to check contents contains md because it is a set

blobstore/src/main/java/org/jclouds/blobstore/config/LocalBlobStore.java

@@ -364,10 +364,8 @@ public final class LocalBlobStore implements BlobStore {
             o = prefix + o;
          }
          md.setName(o + delimiter);
-         if (!contents.contains(md)) {
          contents.add(md);
       }
-      }
       return contents;
    }