I'm trying to migrate my JAVA 6 project to JAVA 8 but I was wondering if the jasper 3.1 lib is compatible with JAVA 6 and if not, which is the lowest version running JAVA 8.
The current Version of JasperReport is V6 which support Java 6 and Higher:
JasperReports® Library v6 Requirements
JRE
Java Runtime Environment 6.0 or higher
https://community.jaspersoft.com/wiki/jasperreports-library-v6-requirements
== Edited ==
Java 8 released March 18, 2014
JasperReports 3.1 released September 17, 2008
JasperReports 3.1
will not support Java 8
.