**BUG REPORT** 1. Please describe the issue you observed:
IOUtils.close() only accepts Closeable as a vararg which results in unnecessary Object[] created if only one Closeable passed there 100% of close() usage is with only one Closeable. While it is not very often used (log rotation, shutdown etc) we can still avoid this extra allocation. [ Full content available at: https://github.com/apache/bookkeeper/issues/1740 ] This message was relayed via gitbox.apache.org for devnull@infra.apache.org
