Looking at the source code of MacFontFinder, it seems that the call to getFontData() at line 74 contains a null string in the list it returns when it is towards the end of the list. From what I can tell, it seems to be due to a call to tScene during the app startup process. Ive attached the stack trace and the output with the bugfonts set to true. The following fonts are installed and enabled automatically by macOS Sierra. Hannotate SC Regular 12.0d2e2 Hannotate TC Bold 12.0d2e2. We got the customer to enable font debug by running bugfonts=true.Īdditional fonts are available for download or as needed by your document. One user resolved the issue by 'Restoring Standard Fonts' in the Font Book application. Interestingly both users seemed to have Microsoft Office fonts installed. The users have seen this issue when using both Mac OS X 10.10 and 10.9.5. This seems to occur on the Mac when they have updated to java 8u25 from java 7. Unfortunately we can't reproduce this bug locally but we have had various customer reports of our app not starting due to a NULL pointer exception in .MacFontFinder.populateFontFileNameMap(MacFontFinder.java:99).