[jira] [Created] (HBASE-8499) Cell BaseDecoder may be using inputstream incorrectly

["Sergey Shelukhin (JIRA)" <ji...@apache.org>]

Sergey Shelukhin created HBASE-8499:
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             Summary: Cell BaseDecoder may be using inputstream incorrectly
                 Key: HBASE-8499
                 URL: https://issues.apache.org/jira/browse/HBASE-8499
             Project: HBase
          Issue Type: Bug
            Reporter: Sergey Shelukhin
            Priority: Minor


{code}
    if (this.in.available() <= 0) {
      this.hasNext = false;
      return this.hasNext;
    }
{code}

Javadoc for available:
{quote}
Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream. The next invocation might be the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.

Note that while some implementations of InputStream will return the total number of bytes in the stream, many will not.
{quote}

Not a big deal if we always use it with correct streams now, but rather dangerous.

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