java.lang.reflect.InvocationTargetException on File Input

[mir-p]

For a reason unknown to me, an extension developed on the Starter project provided by LOEclipse returns an exception java.lang.reflect.InvocationTargetException when I try to enable it in LibreOffice after running. This seem to be correlated with any form of file input loading in the code. Is there any possiblity of loading external files in LOEclipse without this error?