Diagnosing "Failed to compile Java source files"

Console log doesn't really give me any clues what to pursue. Is there any way of obtaining more detail about what went wrong?

[INFO] :   No aidl files to compile, continuing
[INFO] :   Generating i18n files
[INFO] :   Generating D:\Titanium_Studio_Workspace\E...
[INFO] :   Packaging application: C:\Users\Lee.ODP\Documents\Andro...
[INFO] :   Building Java source files: C:\Program Files\Java\jdk1.7.0_45\bin\javac.exe "-J-Xmx256M" ...
[ERROR] :  Failed to compile Java source files:
[ERROR] Application Installer abnormal process termination. Process exit value was 1

I suspect it has to do with adding a module I created/built/referenced to this Titanium Android app. It had been building prior to this change. Would be nice if there was more than a "failed" message, pointing to something that may give me a hint on what I did wrong. I am building on Windows 7 using the latest versions of Studio, SDK, etc.