This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
The correct answer in the WhizLab dump is
Value obtained manually = value1=500&value2=600&AddButton=Submit+Query Value obtained again manually = null Value obtained again = null Value obtained again = null.
Can anyone of you help me to understand, what is this error "Reader already obtained" explains?