Migrated from http://lampsvn.epfl.ch/trac/scala/ticket/1776
Reporter imaier
I still get ConcurrentModificationExceptions from time to time while entering text into the editor. Through a different code path than last time though:

java.util.ConcurrentModificationException
at java.util.LinkedHashMap$LinkedHashIterator.nextEntry(LinkedHashMap.java:365)
at java.util.LinkedHashMap$KeyIterator.next(LinkedHashMap.java:376)
at scala.collection.jcl.MutableIterator$Wrapper.next(MutableIterator.scala:16)
at scala.Iterator$class.foreach(Iterator.scala:414)
at scala.collection.jcl.MutableIterator$Wrapper.foreach(MutableIterator.scala:14)
at scala.Iterable$class.foreach(Iterable.scala:256)
at scala.collection.jcl.LinkedHashSet.foreach(LinkedHashSet.scala:18)
at scala.tools.editor.Typers$class.flushTyper(Typers.scala:296)
at scala.tools.eclipse.ScalaPlugin$Project.flushTyper(ScalaPlugin.scala:260)
at scala.tools.editor.Typers$class.afterParsing(Typers.scala:254)
at scala.tools.eclipse.ScalaPlugin$Project.afterParsing(ScalaPlugin.scala:260)
at lampion.presentation.Presentations$ProjectImpl$class.protected$afterParsing(Presentations.scala:239)
at scala.tools.eclipse.ScalaPlugin$Project.protected$afterParsing(ScalaPlugin.scala:260)
at lampion.presentation.Presentations$ProjectImpl$Job.run(Presentations.scala:239)

Running on latest nightly (March 7).