Exception org.apache.crimson.parser.XMLReaderImpl not found

Hello,
using the com.softwareag.cis.chart.CHARTInfo
I encountered the included exception.

CHARTInfo chart = new CHARTInfo();
...
chart.transformChartToGraphic(svg, CHARTInfo.CREATEJPEGIMAGE);

I´m using the following version of Application Designer CIS_V141_20051114
and Java SDK jdk1.5.0_06

When we were developing using Java 1.4 compilers the error did not occur. According to Sun there has been a change from Crimson to Xerces.
http://java.sun.com/j2se/1.5.0/compatibility.html
What do I need to do?

Thank you
Kai L