I changed the path to use / but got the same error.
java -Xmx6g -ea -Djava.awt.headless=true -Dfile.encoding=UTF-8 -server -classpath .\src\main\resources:.\target\classes:.\target\factorie_2.12-1.3-SNAPSHOT-nlp-jar-with-dependencies.jar cc.factorie.app.nlp.NLP --wsj-forward-pos --conll-chain-ner
Error: Could not find or load main class cc.factorie.app.nlp.NLP
Running the tutorial example, I am seeing warning messages about "multiple versions of scala libraries detected". Maybe that's the problem the main class can't be loaded?
$ mvn scala:run -DmainClass=cc.factorie.tutorial.Grid
[INFO] --- scala-maven-plugin:3.3.1:run (default-cli) @ factorie_2.12 ---
[WARNING] Expected all dependencies to require Scala version: 2.12.4
[WARNING] cc.factorie:factorie_2.12:1.3-SNAPSHOT requires scala version: 2.12.4
[WARNING] cc.factorie:factorie_2.12:1.3-SNAPSHOT requires scala version: 2.12.4
[WARNING] org.scala-lang:scala-compiler:2.12.4 requires scala version: 2.12.4
[WARNING] org.scala-lang:scala-reflect:2.12.4 requires scala version: 2.12.4
[WARNING] org.scala-lang.modules:scala-xml_2.12:1.0.6 requires scala version: 2.12.0
[WARNING] Multiple versions of scala libraries detected!
[WARNING] Not mainClass or valid launcher found/define
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS