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From Lokesh Rajaram <rajaram.lok...@gmail.com>
Subject Re: Hello Everyone
Date Sun, 10 May 2015 04:47:46 GMT
Thank you for the reference links. Which approach should I take, casting or
use scala methods.
If it's the latter option will the JIRA ticket FLINK-1711
<https://issues.apache.org/jira/browse/FLINK-1711> be updated to reflect it?

Thanks,
Lokesh

On Sat, May 9, 2015 at 8:16 PM, Chiwan Park <chiwanpark@icloud.com> wrote:

> Hi. There is some problems using Guava’s check method in Scala. (
> https://groups.google.com/forum/#!topic/guava-discuss/juwovq26R3k <
> https://groups.google.com/forum/#!topic/guava-discuss/juwovq26R3k>) You
> can solve this error simply with casting last argument to java.lang.Object.
> But I think we’d better use `require`, `assume`, `assert` method provided
> by Scala. (
> http://daily-scala.blogspot.kr/2010/03/assert-require-assume.html <
> http://daily-scala.blogspot.kr/2010/03/assert-require-assume.html>)
> Because this changes affects many other codes, so we should discuss about
> changing Guava's method to Scala’s method.
>
> Regards.
> Chiwan Park (Sent with iPhone)
>
>
>
> > On May 10, 2015, at 11:49 AM, Lokesh Rajaram <rajaram.lokesh@gmail.com>
> wrote:
> >
> > Hello All,
> >
> > I am new to Flink community and am very excited about the project and
> work
> > you all have been doing. Kudos!!
> >
> > I was looking to pickup some starter task. Robert recommended to pick up
> > https://issues.apache.org/jira/browse/FLINK-1711. Thanks Robert for your
> > guidance.
> >
> > Sorry for a dumb question. I am done with code changes but my "mvn
> verify"
> > failing only for the scala module as follows
> >
> >
> flink/flink-scala/src/main/scala/org/apache/flink/api/scala/joinDataSet.scala:77:
> > error: ambiguous reference to overloaded definition,
> > [ERROR] both method checkNotNull in object Preconditions of type [T](x$1:
> > T, x$2: String, x$3: <repeated...>[Object])T
> > [ERROR] and  method checkNotNull in object Preconditions of type [T](x$1:
> > T, x$2: Any)T
> > [ERROR] match argument types ((L, R) => O,String)
> > [ERROR]     Preconditions.checkNotNull(fun, "Join function must not be
> > null.")
> >
> > Same error I see for all of the Scala classes I changed. Any pointers
> here
> > will be very helpful for me to proceed further. Please let me know if you
> > need more information.
> >
> > Thanks in advance for your help and support.
> >
> > Thanks,
> > Lokesh
>
>

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