Github user xuanyuanking commented on a diff in the pull request: https://github.com/apache/spark/pull/22989#discussion_r233432568 --- Diff: dev/checkstyle.xml --- @@ -180,5 +180,10 @@ <module name="UnusedImports"/> <module name="RedundantImport"/> <module name="RedundantModifier"/> + <module name="RegexpSinglelineJava"> + <property name="format" value="throw new \w+Error\("/> + <property name="message" value="Avoid throwing error in application code."/> --- End diff -- `application code` against JVM here, as Error subclasses generally represent internal JVM errors.
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