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Recording can help a lot for e.g. to understand what exactly is being POST-ed when you have complex form submissions etc. but described below is an approach using JMeter regular expression support to arrive at stable and repeatable test scripts for Wicket applications.

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Within JMeter, you can add a "Regular Expression Extractor" listener to any requested page in your test script like this. This is how the above regex will look like: (the regex in the screenshot is a bit different but does the same thing, for more information - look towards the end of this page)

The "$1$" refers to the content matched by the first regular expression that we have surrounded with brackets. In this case there is only one bracketed expression.

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