Hi, I've submitted a pull request for several formatting changes that I've made:
- Reformatted the classes in the "storage/sis-storage/src/main/java/org/apache/sis/index/tree/" directory by changing the 2-space indentations to 4-space indentations. - In QuadTreeWriter: Removed the System.out.println statements. Removed the catch (IOException) statement and added a throws IOException in method signature instead. Here is the link to my repository: https://github.com/kelseaflores/sis. Best, Kelsea
