Based on this thread Jmeter - Use Loop controller based on array (created from from multiple variables) I managed to use Loop controller based on the array.
Now I need to pass the each value from the array into JDBC, so I can perform select statement based on every single member of the array. What I try is:
But I got error as:
When I try the same statement with Dammy sampler is working fine.
How to pass member from the array into JDBC inside the loop controller?
JMeter log file explicitly states Cannot invoke method length() on null object
The only place where you're invoking length() function is vars.get('array').length() which means that your ${array} variable is null (not defined), you can double check it using Debug Sampler and View Results Tree listener combination.
If the same statement works elsewhere - the only explanation I can think of is variable scope, see JMeter Scoping Rules user manual chapter for more details.
