Reamer commented on a change in pull request #4173:
URL: https://github.com/apache/zeppelin/pull/4173#discussion_r681461670
##########
File path:
zeppelin-zengine/src/main/java/org/apache/zeppelin/interpreter/launcher/SparkInterpreterLauncher.java
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@@ -106,7 +106,7 @@ public SparkInterpreterLauncher(ZeppelinConfiguration
zConf, RecoveryStorage rec
" to false if you want to use other modes.");
}
- StringBuilder sparkConfBuilder = new StringBuilder();
+ List<String> sparkConfList = new ArrayList<>();
Review comment:
A StringJoiner is more elegant
https://docs.oracle.com/javase/8/docs/api/java/util/StringJoiner.html
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