Re: Strange problem with Scala 2.10

Hi Oliver,

I think the heuristic is that the REPL puts quotes around strings if they
start or end with whitespace.

Cheers,
Jon

On Fri, 27 Feb 2015 at 02:31 Oliver Ruebenacker <[email protected]> wrote:

>
>      Hello,
>
>   Normally, REPL does not put quotations around Strings, or does it? So
> the quotation marks are part of the Strings, then, right? Try:
>
>
> c.asInstanceOf[Map[String, Any]].apply("\"features\"")
>
>   If it's not that, I would try println(c.getClass) and println(c).
>
>   And:
>
>   val map = c.asInstanceOf[Map[String, Any]]
>   map(map.keys.head)
>
>      Best, Oliver
>
>
>
> On Thu, Feb 26, 2015 at 6:54 PM, Jiakui Wang <[email protected]> wrote:
>
>> I got the variable c from previous code, and it behaves very strangely:
>>
>> scala> c.asInstanceOf[Map[String, Any]].keys
>> res24: Iterable[String] = *Set("label", "features")*
>>
>> scala> c.asInstanceOf[Map[String, Any]].apply("features")
>> *java.util.NoSuchElementException: key not found: features*
>> at scala.collection.MapLike$class.default(MapLike.scala:228)
>> at scala.collection.AbstractMap.default(Map.scala:58)
>> at scala.collection.MapLike$class.apply(MapLike.scala:141)
>> at scala.collection.AbstractMap.apply(Map.scala:58)
>> at .<init>(<console>:14)
>> at .<clinit>(<console>)
>> at .<init>(<console>:7)
>> at .<clinit>(<console>)
>> at $print(<console>)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>> at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> at java.lang.reflect.Method.invoke(Method.java:483)
>> at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:734)
>> at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:983)
>> at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:573)
>> at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:604)
>> at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:568)
>> at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:760)
>> at
>> scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:805)
>> at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:717)
>> at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:581)
>> at scala.tools.nsc.interpreter.ILoop.innerLoop$1(ILoop.scala:588)
>> at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:591)
>> at
>> scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:882)
>> at
>> scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:837)
>> at
>> scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:837)
>> at
>> scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
>> at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:837)
>> at scala.tools.nsc.interpreter.ILoop.main(ILoop.scala:904)
>> at xsbt.ConsoleInterface.run(ConsoleInterface.scala:69)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>> at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> at java.lang.reflect.Method.invoke(Method.java:483)
>> at sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:102)
>> at sbt.compiler.AnalyzingCompiler.console(AnalyzingCompiler.scala:77)
>> at sbt.Console.sbt$Console$$console0$1(Console.scala:23)
>> at
>> sbt.Console$$anonfun$apply$2$$anonfun$apply$1.apply$mcV$sp(Console.scala:24)
>> at sbt.TrapExit$.sbt$TrapExit$$executeMain$1(TrapExit.scala:33)
>> at sbt.TrapExit$$anon$1.run(TrapExit.scala:42)
>>
>>
>> Any idea about the problem?
>>
>> Thanks
>>
>>
>>
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>
>
>
> --
> Oliver Ruebenacker
> Solutions Architect at Altisource Labs <http://www.altisourcelabs.com/>
> Be always grateful, but never satisfied.
>
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