Scala IDE for Eclipse

There are some points to bear in mind due to the bootstrapping issues alluded to earlier. The Scala IDE you have installed in the Eclipse instance you are working in is not affected by any changes you make to the sources of the compiler, standard libraries or Scala IDE in your workspace. This means that it isn't possible to directly make changes which require an updated compiler or libraries. It is possible to make changes to the compiler and libraries which will be reflected in a runtime workspace, but only if those changes can themselves be compiled by the installed compiler against the installed libraries.