Adding .jar's to classpath (Scala)
classpath, jar, jvm, scala
Solution
You need to pass both classpath paths as a single argument.
Try this:
$ scalac -classpath "*.jar:dependencies/*.jar" PageRank.scala
$ scala -classpath "*.jar:dependencies/*.jar" PageRank
PageRankVertex(id=2, state=0.9999999999999997)
PageRankVertex(id=1, state=0.9999999999999997)
It worked for me.
Problem
So I've been trying to work with the signal-collect framework and I downloaded the `.jar` files and extracted it into a folder. Currently the folder structure looks like: ``` LICENSE.txt PageRank.scala core-1.1.1-sources.jar dependencies/ javaapi-1.1.1-sources.jar NOTICE.txt README.txt core-1.1.1.jar javaapi-1.1.1-javadoc.jar javaapi-1.1.1.jar ``` Where `PageRank.scala` is the Scala test code they provide, which is: ``` import com.signalcollect._ object PageRank extends App { val graph = GraphBuilder.build graph.addVertex(new PageRankVertex(id=1)) graph.addVertex(new PageRankVertex(id=2)) graph.addEdge(new PageRankEdge(sourceId=1, targetId=2)) graph.addEdge(new PageRankEdge(sourceId=2, targetId=1)) graph.execute graph.foreachVertex(println(_)) graph.shutdown } class PageRankVertex(id: Any, dampingFactor: Double=0.85) extends DataGraphVertex(id=id, state=1-dampingFactor) { type Signal = Double def collect(oldState: Double, mostRecentSignals: Iterable[Double]): Double = { 1 - dampingFactor + dampingFactor * mostRecentSignals.sum } } class PageRankEdge(sourceId: Any, targetId: Any) extends DefaultEdge(sourceId, targetId) { type SourceVertex = PageRankVertex def signal(sourceVertex: PageRankVertex) = { sourceVertex.state * weight / sourceVertex.sumOfOutWeights } } ``` I am a newbie when it comes to the JVM/Java/Scala, and this was my attempt at adding the `.jar's` to the classpath for compiling `PageRank.scala`: ``` $ scalac -classpath *.jar dependencies/*.jar PageRank.scala error: IO error while decoding core-1.1.1.jar with UTF-8 Please try specifying another one using the -encoding option error: IO error while decoding javaapi-1.1.1-javadoc.jar with UTF-8 Please try specifying another one using the -encoding option error: IO error while decoding javaapi-1.1.1-sources.jar with UTF-8 Please try specifying another one using the -encoding option error: IO error while decoding javaapi-1.1.1.jar with UTF-8 Please try specifying another one using the -encoding option error: IO error while decoding dependencies/je-3.2.76.jar with UTF-8 Please try specifying another one using the -encoding option error: IO error while decoding dependencies/scala-library-2.9.1.jar with UTF-8 Please try specifying another one using the -encoding option 6 errors found ``` I cannot figure out what is going wrong... what's happening? Thanks! Regards, -kstruct