Scala "constructor Stopwatch cannot be accessed in class Main" -

summary on resolution, thought dealing scala problem turns out stopwatch , scala logging have private constructors, , not calling proper public methods instantiate them. gzm0's answer below points out.

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trying use guava stopwatch , scala logging, no matter whether create new stopwatch() or new logger() in main or in instantiated class error gradle run:

constructor logger in class logger cannot accessed in class redblacktree4150 var loggerinst = new logger() constructor stopwatch in class stopwatch cannot accessed in class redblacktree4150 var stopwatchinst = new stopwatch() 

if duplicate of this or this question don't know enough realize it. looked @ this question doesn't have accepted answer, , tried (just fun) take parens off constructor calls no avail.

writing first gradle/scala project analysis of algorithms assignment. think if in java asking static vs. non-static, not sure if that's type of issue dealing with. scala not part of assignment not using homework tag.

here's how calling them , first part of program, the full .scala file , build.gradle on github

import com.google.common.base.stopwatch import com.typesafe.scalalogging.slf4j.logger import scala.collection.immutable.treemap import java.util.concurrent.timeunit  object main extends app {   // var rbtree = new redblacktree4150(logger, stopwatch)   var rbtree = new redblacktree4150() } // class redblacktree4150 (var loggerinst: logger, var stopwatchinst: stopwatch) { class redblacktree4150() {   var loggerinst = new logger()   var stopwatchinst = new stopwatch() 

as can see have tried simplifying making 1 object, , instantiating logger , stopwatch in main , passing them class (bad idea know) none of works. simple scala thing missing here? thanks.

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otherwise believe have dependencies in project properly, , same error on command line.

i have 1 more error i posted separate question here, in case it's relevant, error is:

/home/jim/workspace/scala/redblacktree4150/src/main/scala/main.scala:36: value map not member of double   timingsmap = (i <- powerslist; j <- runtest(i)) yield -> j 

the constructors of both stopwatch , logger private. need use factory methods instantiate them.

in case of stopwatch, use createunstarted() method:

val stopwatch = stopwatch.createunstarted() 

in case of logger, must use apply method. however, requires underlying slf4j logger. can create 1 through slf4j's loggerfactory:

import org.slf4j.loggerfactory val logger = logger(loggerfactory.getlogger(getclass))