Question

Why does new File(path) doesn’t work when I run my application from jar? How should I change this? Now I’m receiving FileNotFound Exception when my application tries to load a file.

final File file = new File("src/main/resources/maps/ParcelsCountyRDMFinal5.shp");

Answer 1

If jar created properly, say using Maven, the resources files goes next to class files. It looks something like this:

myapp.jar
 |
 +--- com
 |     +---mycompany
 |            +-- FileOpsClass
 |
 +--- maps
        +-- fileToRead

you can either walk up in directory and access fileToRead, like this for above structure:

  final File file = new File("../../maps/ParcelsCountyRDMFinal5.shp");

or as suggested

  final File file = new File(getClass().getResource("/maps/ParcelsCountyRDMFinal5.shp"));