http://xml.apache.org/commons/components/external/: xml-commons provides an Apache-hosted set of DOM, SAX, and JAXP interfaces for use in other xml-based projects. Our hope is that we can standardize on both a common version and packaging scheme for these critical XML standards interfaces to make the lives of both our developers and users easier. The External Components portion of xml-commons contains interfaces that are defined by external standards organizations. For DOM, that's the W3C; for SAX it's David Megginson and sax.sourceforge.net; for JAXP it's Sun. 
package org.w3c.dom.svg;

public abstract class SVGException extends RuntimeException {
  public SVGException(short code, String message) {
    super(message);
    this.code = code;
  }
  public short code;
  // ExceptionCode
  public static final short SVG_WRONG_TYPE_ERR           = 0;
  public static final short SVG_INVALID_VALUE_ERR        = 1;
  public static final short SVG_MATRIX_NOT_INVERTABLE    = 2;
}