Kazuaki Ishizaki 79b05481a2 [SPARK-26508][CORE][SQL] Address warning messages in Java reported at lgtm.com ... ## What changes were proposed in this pull request? This PR addresses warning messages in Java files reported at [lgtm.com](https://lgtm.com). [lgtm.com](https://lgtm.com) provides automated code review of Java/Python/JavaScript files for OSS projects. [Here](https://lgtm.com/projects/g/apache/spark/alerts/?mode=list&severity=warning) are warning messages regarding Apache Spark project. This PR addresses the following warnings: - Result of multiplication cast to wider type - Implicit narrowing conversion in compound assignment - Boxed variable is never null - Useless null check NOTE: `Potential input resource leak` looks false positive for now. ## How was this patch tested? Existing UTs Closes #23420 from kiszk/SPARK-26508. Authored-by: Kazuaki Ishizaki <ishizaki@jp.ibm.com> Signed-off-by: Sean Owen <sean.owen@databricks.com>		2019-01-01 22:37:28 -06:00
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kvstore	[SPARK-26090][CORE][SQL][ML] Resolve most miscellaneous deprecation and build warnings for Spark 3	2018-11-19 09:16:42 -06:00
network-common	[SPARK-26508][CORE][SQL] Address warning messages in Java reported at lgtm.com	2019-01-01 22:37:28 -06:00
network-shuffle	[SPARK-25642][YARN] Adding two new metrics to record the number of registered connections as well as the number of active connections to YARN Shuffle Service	2018-12-21 11:28:33 -08:00
network-yarn	[SPARK-25642][YARN] Adding two new metrics to record the number of registered connections as well as the number of active connections to YARN Shuffle Service	2018-12-21 11:28:33 -08:00
sketch	[SPARK-25956] Make Scala 2.12 as default Scala version in Spark 3.0	2018-11-14 16:22:23 -08:00
tags	[SPARK-26026][BUILD] Published Scaladoc jars missing from Maven Central	2018-11-19 08:06:33 -06:00
unsafe	[SPARK-26021][SQL][FOLLOWUP] only deal with NaN and -0.0 in UnsafeWriter	2018-12-08 11:18:09 -08:00