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Apache Spark commented on SPARK-13702: -------------------------------------- User 'dongjoon-hyun' has created a pull request for this issue: https://github.com/apache/spark/pull/11541 > Use diamond operator for generic instance creation in Java code > --------------------------------------------------------------- > > Key: SPARK-13702 > URL: https://issues.apache.org/jira/browse/SPARK-13702 > Project: Spark > Issue Type: Improvement > Reporter: Dongjoon Hyun > Priority: Trivial > > Java 7 or higher supports `diamond` operator which replaces the type > arguments required to invoke the constructor of a generic class with an empty > set of type parameters (<>). Currently, Spark Java code use mixed usage of > this. This issue replaces existing codes to use `diamond` operator and add > Checkstyle rule. > {code} > -List<JavaPairDStream<String, String>> kafkaStreams = new > ArrayList<JavaPairDStream<String, String>>(numStreams); > +List<JavaPairDStream<String, String>> kafkaStreams = new > ArrayList<>(numStreams); > {code} > {code} > -Set<Tuple2<Integer, Integer>> edges = new HashSet<Tuple2<Integer, > Integer>>(numEdges); > +Set<Tuple2<Integer, Integer>> edges = new HashSet<>(numEdges); > {code} > *Reference* > https://docs.oracle.com/javase/8/docs/technotes/guides/language/type-inference-generic-instance-creation.html -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org