SAXUtil throws inconsistent exceptions when it encounters wrong formats

SAXUtil throws SAXException when formats are wrong. For example, a method is as follows:

public static int parseInt(String i, int def) throws SAXException{ if (i == null) return def; else{ try { return Integer.parseInt(i); } catch (NumberFormatException ex){ throw new SAXException("Expected an integer, got '"+i+"'"); } } }

The other classes throw IOException. For example, DOMInputCapsule.java has the following code:

public int readInt(String name, int defVal) throws IOException { String tmpString = currentElem.getAttribute(name); if (tmpString == null || tmpString.length() < 1) return defVal; try { return Integer.parseInt(tmpString); } catch (NumberFormatException nfe) { IOException io = new IOException(nfe.toString()); io.initCause(nfe); throw io; } catch (DOMException de) { IOException io = new IOException(de.toString()); io.initCause(de); throw io; } }

I assume that all wrong formats will throw IOException. As a result, my code fails to catch the exceptions thrown by SAXException.

Can jmonkeyengine fix the problem?

Start with SAXUtil.parseInt and DOMInputCapsule.readInt, then inspect the related format-parsing methods and their callers. Decide and apply a consistent exception contract for invalid formats, and verify that affected callers can catch the documented exception.