Patch that solves this issue for me. Please consider merging it
GO Contact Sync Mod can't find Outlook contacts and calendar folders, even default ones
Create directories recursively
Not sure about the reason of your problem, but maybe try IntelliJ IDEA? It compiles 1.5.24 for me without any problems.
IllegalStateException with keywordslowercase argument and type or constant in package
Windows plsdoc.bat doesn't correctly handle enquoted arguments with spaces