#vulnerable code 
                                public Collection<StoredObject> list(String prefix, String marker, int pageSize) {
        ListInstructions listInstructions = new ListInstructions()
                .setPrefix(prefix)
                .setMarker(marker)
                .setLimit(pageSize);
        return new ListObjectsCommand(getAccount(), getClient(), getAccess(), this, listInstructions).call();
    } 
                            #location 6 
                            #vulnerability type RESOURCE_LEAK
#fixed code
                                public Collection<StoredObject> list(String prefix, String marker, int pageSize) {
        ListInstructions listInstructions = new ListInstructions()
                .setPrefix(prefix)
                .setMarker(marker)
                .setLimit(pageSize);
        return commandFactory.createListObjectsCommand(getAccount(), getClient(), getAccess(), this, listInstructions).call();
    }