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mkConsoleFrontEnd() leads to ClassNotFoundException: scala.tools.reflect #5893

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scabug opened this issue Jun 7, 2012 · 3 comments
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@scabug
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scabug commented Jun 7, 2012

based on kepler 1efe75070654860f83aaf7b254767b47a1864e5f .

Reproduce:
compile and run:

// toolboxbug.scala
object Test extends App{
    scala.tools.reflect.mkConsoleFrontEnd()
}

Expected result:
compiles and runs without error.

Actual result:

D:\playground>d:\work\kepler\build\pack\bin\scalac -cp d:\work\kepler\build\pack\lib\scala-compiler.jar;d:\work\kepler\build\pack\lib\scala-library.jar;. toolboxbug.scala

D:\playground>d:\work\kepler\build\pack\bin\scala -cp d:\work\kepler\build\pack\lib\scala-compiler.jar;d:\work\kepler\build\pack\lib\scala-library.jar;. Test
java.lang.ClassNotFoundException: scala.tools.reflect
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.scala$tools$nsc$util$ScalaClassLoader$$super$findClass(ScalaClassLoader.scala:162)
        at scala.tools.nsc.util.ScalaClassLoader$class.findClass(ScalaClassLoader.scala:60)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.findClass(ScalaClassLoader.scala:162)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.scala$tools$nsc$util$ScalaClassLoader$$super$loadClass(ScalaClassLoader.scala:162)
        at scala.tools.nsc.util.ScalaClassLoader$class.loadClass(ScalaClassLoader.scala:66)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.loadClass(ScalaClassLoader.scala:162)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
        at Test$delayedInit$body.apply(toolboxbug.scala:5)
        at scala.Function0$class.apply$mcV$sp(Function0.scala:40)
        at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
        at scala.App$$anonfun$main$1.apply(App.scala:61)
        at scala.App$$anonfun$main$1.apply(App.scala:61)
        at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
        at scala.collection.immutable.List.foreach(List.scala:77)
        at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
        at scala.collection.mutable.ListBuffer.foreach(ListBuffer.scala:45)
        at scala.App$class.main(App.scala:61)
        at Test$.main(toolboxbug.scala:1)
        at Test.main(toolboxbug.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at scala.tools.nsc.util.ScalaClassLoader$$anonfun$run$1.apply(ScalaClassLoader.scala:93)
        at scala.tools.nsc.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:41)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.asContext(ScalaClassLoader.scala:162)
        at scala.tools.nsc.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:93)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:162)
        at scala.tools.nsc.CommonRunner$class.run(ObjectRunner.scala:28)
        at scala.tools.nsc.ObjectRunner$.run(ObjectRunner.scala:45)
        at scala.tools.nsc.CommonRunner$class.runAndCatch(ObjectRunner.scala:35)
        at scala.tools.nsc.ObjectRunner$.runAndCatch(ObjectRunner.scala:45)
        at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:70)
        at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:92)
        at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:101)
        at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
@scabug
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scabug commented Jun 7, 2012

Imported From: https://issues.scala-lang.org/browse/SI-5893?orig=1
Reporter: @cvogt

@scabug
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scabug commented Jun 7, 2012

@xeno-by said:
Works if you write it like that:

object Test extends App{
  scala.tools.reflect.`package`.mkConsoleFrontEnd()
}

Please, use a workaround for now.

@scabug
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scabug commented Jan 15, 2013

@retronym said:

~/code/scala squala
Welcome to Scala version 2.11.0-20130108-142922-b0104d623c (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_27).
Type in expressions to have them evaluated.
Type :help for more information.

scala>     scala.tools.reflect.mkConsoleFrontEnd()

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