[HIVE-20158] Do Not Print StackTraces to STDERR in Base64TextOutputFormat

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 3.0.0, 4.0.0
• Fix Version/s: 3.2.0, 4.0.0-alpha-1
• Component/s: Contrib
• Labels: newbie noob
• Assignee: Andrew Sherman
• Reporter: David Mollitor
• Created: 12/Jul/18 22:25
• Updated: 17/Nov/22 08:54
• Resolved: 26/Jul/18 22:27

Description

https://github.com/apache/hive/blob/6d890faf22fd1ede3658a5eed097476eab3c67e9/contrib/src/java/org/apache/hadoop/hive/contrib/fileformat/base64/Base64TextOutputFormat.java

      try {
        String signatureString = job.get("base64.text.output.format.signature");
        if (signatureString != null) {
          signature = signatureString.getBytes("UTF-8");
        } else {
          signature = new byte[0];
        }
      } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
      }

The UnsupportedEncodingException is coming from the getBytes method call. Instead, use the CharSet version of the method and it doesn't throw this explicit exception so the 'try' block can simply be removed. Every JVM will support UTF-8.

https://docs.oracle.com/javase/7/docs/api/java/lang/String.html#getBytes(java.nio.charset.Charset)
https://docs.oracle.com/javase/7/docs/api/java/nio/charset/StandardCharsets.html#UTF_8