Caused by: java.io.UTFDataFormatException: Invalid UTF8 encoding in Oracle Reports

Usually we are facing the issue, while generating XML Tags, the issue is Caused by: java.io.UTFDataFormatException: Invalid UTF8 encoding.  This is Caused because of the version of Oracle Reports or Language we need to set in NLS_LANG.

For a Time Being we can go for a below step, we need to change the XML Prolog Value in Oracle Reports Builder.

 XML Prolog Value: xml version="1.0" encoding="iso-8859-1"

This will help in the short term but in my experience it will come back and bite you. you might get lucky but remember what you have done if you hit another problem with your XML in the future.

You are now treating a single report - Oracle support can help you address all of them at once :).

Thanks
Amar Alam.