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I would like to invoke a constructor with a calculated array of parameters

val params=Array[Object]("abc") // Calculate the array of parameters
// java.lang.IllegalArgumentException: argument type mismatch
classOf[String].getConstructor(classOf[String]).newInstance(params)

It's because the method newInstance is a vararg method. How I can invoke this method with a classical array with Scala ?

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newInstance(params: _*)  // turn collection into argument list
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