Bug 19634

The org.apache.poi.hssf.record.UnicodeString class doesn't compile under JDK 
1.3 because it is calling new RuntimeException(Exception) this constructor was 
introduced in JDK 1.4

The offending code is in the method fillFields(byte[] , short) and the snippet 
below shows the problem.


            try {
                field_3_string = new String(data, 3, getCharCount(), 
                                        StringUtil.getPreferredEncoding());
            } catch (UnsupportedEncodingException e) {
                throw new RuntimeException(e);
            }