Overriding java method with arg of type java.util.Map[String, String] in scala class

Question

I have an abstract class, written in Java:

abstract class AbstractJavaClass {
  abstract public Map<String, String> method(Map<String, String> params);
}

I'm trying to extend this class in scala:

class ScalaConcreteClass extends AbstractJavaClass {
  override def method(params: ...): ...
}

First I've written type (...) in scala as Map[String, String] (just didn't know what to try else :)), but it says: (Note that java.util.Map[java.lang.String,java.lang.String] does not match Map[String,String])

How should I override that methods?

params: java.util.Map[String, String] does not work? BTW your AbstractJavaClass uses Scala syntax. — Tomasz Nurkiewicz
– Tomasz Nurkiewicz, Commented Sep 11, 2012 at 11:14

Community · Accepted Answer · 2017-05-23 12:12:14Z

4

See this question. I think you want to write Map[java.lang.String, java.lang.String](or even java.util.Map[java.lang.String, java.lang.String]) (as the compiler says, actually).

edited May 23, 2017 at 12:12

CommunityBot

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answered Sep 11, 2012 at 11:17

Frank Pavageau

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1 Comment

dmitry Over a year ago

Thanks, seems question is pretty lame, and solution is obvious, works in reduced form also: java.util.Map[String, String]

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