Uninformative exception when `head` called on empty list #46

schmmd · 2013-10-04T15:17:54Z

https://github.com/sbt/sbt-native-packager/blob/master/src/main/scala/com/typesafe/sbt/packager/universal/Archives.scala#L126

I'm not sure what the cause is. We probably want a .headOption.getOrElse(throw)

java.util.NoSuchElementException: next on empty iterator
    at scala.collection.Iterator$$anon$2.next(Iterator.scala:39)
    at scala.collection.Iterator$$anon$2.next(Iterator.scala:37)
    at scala.collection.IndexedSeqLike$Elements.next(IndexedSeqLike.scala:64)
    at scala.collection.IterableLike$class.head(IterableLike.scala:91)
    at scala.collection.mutable.ArrayOps$ofRef.scala$collection$IndexedSeqOptimized$$super$head(ArrayOps.scala:108)
    at scala.collection.IndexedSeqOptimized$class.head(IndexedSeqOptimized.scala:120)
    at scala.collection.mutable.ArrayOps$ofRef.head(ArrayOps.scala:108)
    at com.typesafe.sbt.packager.universal.Archives$$anonfun$makeTarball$1.apply(Archives.scala:126)
    at com.typesafe.sbt.packager.universal.Archives$$anonfun$makeTarball$1.apply(Archives.scala:116)
    at sbt.IO$.withTemporaryDirectory(IO.scala:285)
    at com.typesafe.sbt.packager.universal.Archives$.makeTarball(Archives.scala:116)
    at com.typesafe.sbt.packager.universal.Archives$$anonfun$10.apply(Archives.scala:109)
    at com.typesafe.sbt.packager.universal.Archives$$anonfun$10.apply(Archives.scala:109)
    at scala.Function3$$anonfun$tupled$1.apply(Function3.scala:35)
    at scala.Function3$$anonfun$tupled$1.apply(Function3.scala:34)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:42)
    at sbt.std.Transform$$anon$4.work(System.scala:64)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:237)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:237)
    at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:18)
    at sbt.Execute.work(Execute.scala:244)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:237)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:237)
    at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:160)
    at sbt.CompletionService$$anon$2.call(CompletionService.scala:30)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)
[error] (universal:packageZipTarball) java.util.NoSuchElementException: next on empty iterator

The text was updated successfully, but these errors were encountered:

jsuereth · 2013-10-07T21:13:34Z

BTW - I'm not 100% certain why you saw this. It means for some reason the tar file was not created, but the process returned success. After the next release of sbt-native-packager, I'd love to here feedback on what the new error message states.

schmmd · 2013-10-07T21:57:18Z

Sure. I'm not sure either. I was trying to create my first sbt packager package and I was having a lot of trouble. I was going to get it to work and improve the documentation, but then I ran into this.

jsuereth · 2013-10-07T21:59:17Z

Anything I can do to help, please let me know. Perhaps if you had an example project with the problem, so I can try it out?

schmmd · 2013-10-07T22:24:14Z

Josh, I can give you a GitHub url to sample projects. Beware it has a test case with significant memory resources (this is a pain point for me). I'm probably doing a lot wrong, but I spent some time earlier with the available documentation.

I found it difficult to figure out which command I needed to run to make a universal linux package. It would be nice for this to be in the README. Maybe I still have it wrong.
https://github.com/knowitall/openie/tree/package

> sbt clean compile
...
/home/michael/hack/github/knowitall/openie/build.sbt:78: error: not found: value archetypes
archetypes.java_application
^

If I remove the problematic line, the next error I get is:

> sbt clean compile
...
/home/michael/hack/github/knowitall/openie/build.sbt:49: error: not found: value packageSummary
packageSummary in Linux := "The name you want displayed in package summaries"
^
[error] Type error in expression

If I remove everything beneath packagerSettings, I get an exception like before. Note that this time I'm running this on an entirely different machine (personal machine at home vs work machine at work).

https://github.com/knowitall/openie/tree/package1

> sbt clean compile universal:package-zip-tarball
java.util.NoSuchElementException: next on empty iterator
    at scala.collection.Iterator$$anon$3.next(Iterator.scala:27)
    at scala.collection.Iterator$$anon$3.next(Iterator.scala:25)
    at scala.collection.IndexedSeqLike$Elements.next(IndexedSeqLike.scala:63)
    at scala.collection.IterableLike$class.head(IterableLike.scala:90)
    at scala.collection.mutable.ArrayOps.scala$collection$IndexedSeqOptimized$$super$head(ArrayOps.scala:38)
    at scala.collection.IndexedSeqOptimized$class.head(IndexedSeqOptimized.scala:121)
    at scala.collection.mutable.ArrayOps.head(ArrayOps.scala:38)
    at com.typesafe.sbt.packager.universal.Archives$$anonfun$makeTarball$1.apply(Archives.scala:126)
    at com.typesafe.sbt.packager.universal.Archives$$anonfun$makeTarball$1.apply(Archives.scala:116)
    at sbt.IO$.withTemporaryDirectory(IO.scala:262)
    at com.typesafe.sbt.packager.universal.Archives$.makeTarball(Archives.scala:116)
    at com.typesafe.sbt.packager.universal.Archives$$anonfun$10.apply(Archives.scala:109)
    at com.typesafe.sbt.packager.universal.Archives$$anonfun$10.apply(Archives.scala:109)
    at sbt.Scoped$$anonfun$hf3$1.apply(Structure.scala:579)
    at sbt.Scoped$$anonfun$hf3$1.apply(Structure.scala:579)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:49)
    at sbt.Scoped$Reduced$$anonfun$combine$1$$anonfun$apply$12.apply(Structure.scala:311)
    at sbt.Scoped$Reduced$$anonfun$combine$1$$anonfun$apply$12.apply(Structure.scala:311)
    at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:41)
    at sbt.std.Transform$$anon$5.work(System.scala:71)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:232)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:232)
    at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:18)
    at sbt.Execute.work(Execute.scala:238)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:232)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:232)
    at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
    at sbt.CompletionService$$anon$2.call(CompletionService.scala:30)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)
[error] (universal:package-zip-tarball) java.util.NoSuchElementException: next on empty iterator
[error] Total time: 0 s, completed Oct 7, 2013 3:15:52 PM

jsuereth · 2013-10-15T16:06:52Z

Ah, so this is definitely a "documentation is poor" error. Specifically, here's a build.sbt that will work for you:

import AssemblyKeys._
import NativePackagerKeys._

assemblySettings

name := "openie"

organization := "edu.washington.cs.knowitall.openie"

version := "4.1.1-SNAPSHOT"

crossScalaVersions := Seq("2.10.2")

scalaVersion <<= crossScalaVersions { (vs: Seq[String]) => vs.head }

resolvers += "Sonatype SNAPSHOTS" at "https://oss.sonatype.org/content/repositories/snapshots/"

libraryDependencies ++= Seq(
  // extractor components
  "edu.washington.cs.knowitall.srlie" %% "srlie" % "1.0.1",
  "edu.washington.cs.knowitall.chunkedextractor" %% "chunkedextractor" % "1.0.6",
  // for splitting sentences
  "edu.washington.cs.knowitall.nlptools" %% "nlptools-sentence-opennlp" % "2.4.3",
  // for remote components
  "net.databinder.dispatch" %% "dispatch-core" % "0.11.0",
  // resource management
  "com.jsuereth" %% "scala-arm" % "1.3",
  // logging
  "org.slf4j" % "slf4j-api" % "1.7.5",
  "ch.qos.logback" % "logback-core" % "1.0.13",
  "ch.qos.logback" % "logback-classic" % "1.0.13",
  "org.scalatest" % "scalatest_2.10" % "2.0.RC1" % "test")

mainClass in assembly := Some("edu.knowitall.openie.OpenIECli")

scalacOptions ++= Seq("-unchecked", "-deprecation")

// custom options for high memory usage

javaOptions += "-Xmx4G"

javaOptions += "-XX:+UseConcMarkSweepGC"

fork in run := true

fork in Test := true

connectInput in run := true // forward stdin/out to fork

licenses := Seq("Open IE Software License Agreement" -> url("https://raw.github.com/knowitall/openie/master/LICENSE"))

homepage := Some(url("https://github.com/knowitall/openie"))

publishMavenStyle := true

publishTo <<= version { (v: String) =>
  val nexus = "https://oss.sonatype.org/"
  if (v.trim.endsWith("SNAPSHOT"))
    Some("snapshots" at nexus + "content/repositories/snapshots")
  else
    Some("releases"  at nexus + "service/local/staging/deploy/maven2")
}

pomExtra := (
  <scm>
    <url>https://github.com/knowitall/openie</url>
    <connection>scm:git://github.com/knowitall/openie.git</connection>
    <developerConnection>scm:git:git@github.com:knowitall/openie.git</developerConnection>
    <tag>HEAD</tag>
  </scm>
  <developers>
   <developer>
      <name>Michael Schmitz</name>
    </developer>
  </developers>)

packageArchetype.java_application

packageSummary in Linux := "The name you want displayed in package summaries"

packageDescription := " A description of your project"

The changes are:

+import NativePackagerKeys._

- archetypes.java_application
+ packageArchetype.java_application

I'm updating the docs now!

schmmd · 2013-10-15T16:10:36Z

Cool. I saw both archetypes.java_application and packageArchetype.java_application in the docs--so clarifying will definitely help!

jsuereth · 2013-10-15T16:24:13Z

Yep. One is a carry-over from a rename. Updated the README.md with need-to-know info for now.

jsuereth closed this as completed in 6169f22 Oct 6, 2013

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uninformative exception when `head` called on empty list #46

Uninformative exception when `head` called on empty list #46

schmmd commented Oct 4, 2013

jsuereth commented Oct 7, 2013

schmmd commented Oct 7, 2013

jsuereth commented Oct 7, 2013

schmmd commented Oct 7, 2013

jsuereth commented Oct 15, 2013

schmmd commented Oct 15, 2013

jsuereth commented Oct 15, 2013

Uninformative exception when head called on empty list #46

Uninformative exception when head called on empty list #46

Comments

schmmd commented Oct 4, 2013

jsuereth commented Oct 7, 2013

schmmd commented Oct 7, 2013

jsuereth commented Oct 7, 2013

schmmd commented Oct 7, 2013

jsuereth commented Oct 15, 2013

schmmd commented Oct 15, 2013

jsuereth commented Oct 15, 2013

Uninformative exception when `head` called on empty list #46

Uninformative exception when `head` called on empty list #46