static int readInt(Object input) throws NumberFormatException {
		try {
			return Integer.parseInt(input.toString());
		} catch (NullPointerException ex) {
			throw new NumberFormatException("input was null");
		} catch (NumberFormatException ex) {
			throw ex;
		}
	}
Dummy class to test exceptions / catch blocks.
recaf-core/src/testFixtures/java/software/coley/recaf/test/dummy/ClassWithExceptions.java