Set up sbt build

.gitignore

@@ -1,2 +1,7 @@
 classes
-arduino.jar*
+/project/project
+/project/target
+/arduino.jar*
+/arduino.zip*
+/jss*.jar
+/target

build.sbt

@@ -0,0 +1,36 @@
+scalaVersion := "2.11.7"
+
+enablePlugins(org.nlogo.build.NetLogoExtension)
+
+javaSource in Compile := baseDirectory.value / "src"
+
+name := "arduino"
+
+scalacOptions ++= Seq("-deprecation", "-unchecked", "-Xlint", "-Xfatal-warnings",
+  "-encoding", "us-ascii")
+
+javacOptions ++= Seq("-g", "-deprecation", "-Xlint:all", "-Xlint:-serial", "-Xlint:-path",
+  "-encoding", "us-ascii")
+
+netLogoZipSources   := false
+
+val netLogoJarOrDependency =
+  Option(System.getProperty("netlogo.jar.url"))
+    .orElse(Some("http://ccl.northwestern.edu/devel/NetLogo-5.3-LevelSpace-3a6b9b4.jar"))
+    .map { url =>
+      import java.io.File
+      import java.net.URI
+      if (url.startsWith("file:"))
+        (Seq(new File(new URI(url))), Seq())
+      else
+        (Seq(), Seq("org.nlogo" % "NetLogo" % "5.3.0-SNAPSHOT" from url))
+    }.get
+
+unmanagedJars in Compile ++= netLogoJarOrDependency._1
+
+libraryDependencies      ++= netLogoJarOrDependency._2
+
+netLogoClassManager := "arduino.ArduinoExtension"
+
+netLogoTarget :=
+  org.nlogo.build.NetLogoExtension.directoryTarget(baseDirectory.value)

project/build.properties

@@ -0,0 +1 @@
+sbt.version=0.13.9

project/plugins.sbt

@@ -0,0 +1,2 @@
+addSbtPlugin("org.nlogo" % "netlogo-extension-plugin" % "2.4_5.3-M1" from
+  "https://github.com/NetLogo/NetLogo-Extension-Plugin/releases/download/v2.4-M1_5.3.x/netlogo-extension-plugin-2.4-M1_5.3.x.jar")

src/arduino/ArduinoExtension.java

@@ -276,9 +276,9 @@ public void unload( ExtensionManager em) {
 			field.setAccessible(true);
 			@SuppressWarnings("unchecked")
 			Vector<Object> libs = (Vector<Object>) (field.get(classLoader)) ;
-			for ( Object o : libs ) 
+			for ( Object o : libs )
 			{
-				java.lang.reflect.Method finalize = o.getClass().getDeclaredMethod( "finalize" , new Class[0] ) ;
+				java.lang.reflect.Method finalize = o.getClass().getDeclaredMethod( "finalize" , new Class<?>[0] ) ;
 				finalize.setAccessible( true ) ;
 				finalize.invoke( o , new Object[0] ) ;
 			}
@@ -288,6 +288,5 @@ public void unload( ExtensionManager em) {
 			System.err.println( e.getMessage() ) ;
 		}
 	}
-
 
 }