P3
- Remove unused imports
- Remove unused variable in instanceof
- Use constants instead Integer.valueOf(-1) and Long.valueOf(0L)
- Add final where missing
- Prefer package protected classes over public classes
- Use try-with-resources
- Use Arrays.toString(...) instead of Arrays.asList(...).toString();
- Remove unused variable in instanceof
- Use constants instead Integer.valueOf(-1) and Long.valueOf(0L)
- Add final where missing
- Prefer package protected classes over public classes
- Use try-with-resources
- Use Arrays.toString(...) instead of Arrays.asList(...).toString();
