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These are described in the solution to this issue: https://opensource.ncsa.illinois.edu/jira/browse/DFDL-81. See the comments at the bottom for the settings. Basically, you have to install the Microsoft Japanese Language Pack.
Intellij Setup
Intellij comes ready-equipped to support Daffodil with only a few changed required to add the plugins for Scala and SBT support. In the Intellij UI, open File->Settings and in the left pane scroll down to the section labeled Plugins (this is below the middle divider). In plugins select "Browse repositories,,," and from this list select "Scala" and "SBT" (use the search feature to help find them). Then click the Download and install icon (the disk with the arrow toolbar button or via context menu). When the two plugins are loaded, close Intellij and restart.
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