Can't start a JUnit test in debug mode

[Arnaud]

hi

I have a strange error. I can start a JUnit test in normal mode but not in debug mode.

I use "Scala JUnit 4" launcher.

java.lang.ClassCastException: java.lang.String cannot be cast to [Ljava.lang.String;

at org.scalaide.core.internal.launching.ClasspathGetterForLaunchDelegate$$anonfun$1.apply(ClasspathGetterForLaunchDelegate.scala:28)

at scala.collection.generic.GenericTraversableTemplate$$anonfun$flatten$1.apply(GenericTraversableTemplate.scala:172)

at scala.collection.generic.GenericTraversableTemplate$$anonfun$flatten$1.apply(GenericTraversableTemplate.scala:171)

at scala.collection.Iterator$class.foreach(Iterator.scala:893)

at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)

at scala.collection.MapLike$DefaultValuesIterable.foreach(MapLike.scala:206)

at scala.collection.generic.GenericTraversableTemplate$class.flatten(GenericTraversableTemplate.scala:171)

at scala.collection.AbstractTraversable.flatten(Traversable.scala:104)

at org.scalaide.core.internal.launching.ClasspathGetterForLaunchDelegate$class.toInclude(ClasspathGetterForLaunchDelegate.scala:28)

at org.scalaide.core.internal.launching.ClasspathGetterForLaunchDelegate$class.scalaClasspath(ClasspathGetterForLaunchDelegate.scala:23)

at org.scalaide.core.internal.launching.ClasspathGetterForLaunchDelegate$class.getClasspath(ClasspathGetterForLaunchDelegate.scala:16)

at org.scalaide.debug.internal.launching.ScalaJUnitLaunchConfigurationDelegate.getClasspath(ScalaJUnitLaunchConfigurationDelegate.scala:7)

at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate.launch(JUnitLaunchConfigurationDelegate.java:147)

at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:885)

at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:739)

at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1039)

at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1256)

at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Any idea?

thanks

Arnaud

[wpopie...@virtuslab.com]

Could you look at launch configuration and share it with me? Looks like some value of it is list of strings and just string is requested.

W.

[Arnaud]

I can't reproduce the bug anymore! I don't know why....

My test has @RunWith(classOf[Parameterized]), not sure if it's related.

[Simon Schäfer]

---- On Wed, 22 Jun 2016 18:30:49 +0200 Arnaud <ama...@gmail.com>wrote ----

I can't reproduce the bug anymore! I don't know why....

Good for us, then we don't have to fix anything. Just by looking at our code I don't even know how that class cast exception can happen in the first place. I hope you don't have to see it again.

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