gistfile1.scala

scala>   val pid = java.lang.management.ManagementFactory.getRuntimeMXBean.getName.takeWhile(_ != '@')
pid: String = 59747

scala>   def runProcess(command:String) =
     |     io.Source.fromInputStream(Runtime.getRuntime.exec(command).getInputStream).getLines()
runProcess: (command: String)Iterator[String]

scala>   def findArraysIn_lsof = runProcess("lsof").filter(_.contains("array")).filter(_.contains(pid))
findArraysIn_lsof: Iterator[String]

scala> val hw1 = org.nlogo.headless.HeadlessWorkspace.newInstance
hw1: org.nlogo.headless.HeadlessWorkspace = org.nlogo.headless.HeadlessWorkspace@1d75249c

scala> val hw2 = org.nlogo.headless.HeadlessWorkspace.newInstance
hw2: org.nlogo.headless.HeadlessWorkspace = org.nlogo.headless.HeadlessWorkspace@e757105

scala> val hw3 = org.nlogo.headless.HeadlessWorkspace.newInstance
hw3: org.nlogo.headless.HeadlessWorkspace = org.nlogo.headless.HeadlessWorkspace@7e5f1c5e

scala> findArraysIn_lsof
res0: Iterator[String] = empty iterator

scala> hw1.getExtensionManager.importExtension("array", null)

scala> findArraysIn_lsof.size
res2: Int = 2

scala> hw2.getExtensionManager.importExtension("array", null)

scala> findArraysIn_lsof.size
res4: Int = 3

scala> hw3.getExtensionManager.importExtension("array", null)

scala> findArraysIn_lsof.size
res6: Int = 2

scala> hw3.getExtensionManager.importExtension("array", null)

scala> findArraysIn_lsof.size
res8: Int = 3

scala> hw3.getExtensionManager.re
readExtensionObject   readFromString        replaceIdentifier     reset                 resolvePath           
resolvePathAsURL      retrieveObject        

scala> hw3.getExtensionManager.res
reset              resolvePath        resolvePathAsURL   

scala> hw3.getExtensionManager.reset()

scala> findArraysIn_lsof.size
res10: Int = 2

scala> hw2.getExtensionManager.reset()

scala> findArraysIn_lsof.size
res12: Int = 2

scala> hw1.getExtensionManager.reset()

scala> findArraysIn_lsof.size
res14: Int = 2

scala> hw1.dispose(); hw2.dispose(); hw3.dispose();

scala> System.gc()

scala> findArraysIn_lsof.size
res17: Int = 2