Incremental compilation on Windows - new .class files added

[Yevgeniy Mordovkin]

Hi there. We compile using SBT, used Maven before and in both cases we ran into "Enclosing method not found" error while running code that was build after a few incremental builds. Upon investigation I found that the broken incremental jars contain some internal classes that do not exist for a clean compilation, that fall in Class.java on attempt to find the enclosing method. Did someone run into a similar issue?