Yes, the Interleave controller in 1.6.1 is broken in this way. You can
download the nightly tar and it should be fixed there. You'll have to do a
build after downloading to generate a new ApacheJMeter.jar file.
-Mike
> -----Original Message-----
> From: Jonathan O'Keeffe [mailto:[EMAIL PROTECTED]]
> Sent: Monday, August 27, 2001 10:20 PM
> To: [EMAIL PROTECTED]
> Subject: Problem with InterleaveController?
>
>
> Does anyone know of any problems using the InterleaveController?
>
> I am using JMeter 1.6.1 (first time using post-1.6 release,
> have previously
> used older versions). In trying to use an InterleaveController, I am
> having the following problem:
>
> I have a ThreadGroup with the following setup:
>
> --- "Web Testing" with a child URL Sample to request page A
> --- "Interleave Logic", with a child "Web Testing", with
> several children
> URL Samples to request pages B, C, D, E, etc.
> --- "Web Testing" with a child URL Sample to request page Z
> --- Uniform Random Timer (default settings)
> --- Graph Results
>
> What I am expecting is to sequence through the pages like this:
> A, B, Z; A, C, Z; A, D, Z; A, E, Z; etc...
>
> Instead, JMeter requests page A, page B, and then throws a
> NullPointerException in InterleaveController:
>
> java.lang.NullPointerException
> at
> org.apache.jmeter.control.GenericController.endEntryCycle(Gene
> ricController
> .java:311)
> at
> org.apache.jmeter.control.InterleaveControl.nextEntry(Interlea
> veControl.jav
> a:116)
> at
> org.apache.jmeter.control.GenericController.nextEntry(GenericC
> ontroller.jav
> a:225)
> at
> org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:116)
> at java.lang.Thread.run(Thread.java:484)
>
> (The line numbers may be a bit off because I've been messing
> with adding
> debugging statements in the source. Line 311 in
> GenericController.endEntryCycle is the first line of the
> method, which says
>
> if(controlIt.hasNext())
>
> I've verified that controlIt is null at this point, which is why it is
> throwing the NullPointerException.
>
> It seems to me that after the InterleaveControl requests its
> first sample,
> the next call to nextEntry() calls init(). At this point,
> controlIt.hasNext() == false, which ends up causing controlIt
> to be set to
> null. Later on, endEntryCycle gets called, which assumes
> that controlIt is
> valid and fails.
>
> Is there a problem here, or do I have something configured wrong?
>
> Thanks in advance for any assistance.
>
> - Jonathan O'Keeffe
>
>
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