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https://issues.apache.org/jira/browse/SPARK-4557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14610334#comment-14610334
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somil deshmukh commented on SPARK-4557:
---------------------------------------

In  JavaDStreamLike.scala ,I have replace JFunction(R,Void) to 
JVoidFunction(R),I have complied the code with no error using  Java 7.

> Spark Streaming' foreachRDD method should accept a VoidFunction<...>, not a 
> Function<..., Void>
> -----------------------------------------------------------------------------------------------
>
>                 Key: SPARK-4557
>                 URL: https://issues.apache.org/jira/browse/SPARK-4557
>             Project: Spark
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 1.1.0
>            Reporter: Alexis Seigneurin
>            Priority: Minor
>              Labels: starter
>
> In *Java*, using Spark Streaming's foreachRDD function is quite verbose. You 
> have to write:
> {code:java}
>                 .foreachRDD(items -> {
>                     ...;
>                     return null;
>                 });
> {code}
> Instead of:
> {code:java}
>                 .foreachRDD(items -> ...);
> {code}
> This is because the foreachRDD method accepts a Function<JavaRDD<...>, Void> 
> instead of a VoidFunction<JavaRDD<...>>. This would make sense to change it 
> to a VoidFunction as, in Spark's API, the foreach method already accepts a 
> VoidFunction.



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