Ireport Java Issue

== Ireport Issue: Showing Null Value at the time of Preview ==

Solution - Upgrade JDK to JDK-7

OS - Ubuntu 13.04

Login As root

add-apt-repository ppa:openjdk/ppa
apt-get update
apt-get install openjdk-7-jdk
/usr/sbin/update-alternatives --config java
/usr/sbin/update-alternatives --config javac
/usr/sbin/update-alternatives --config javaws

Ireport was running and preview was showing properly and was confirmed by Java team