Parallel classes runs methods from one class in different threads, interleaves two classes in one thread

[markdbullock]

I have a TestNG suite which runs classes in parallel.
I have encountered failures because test methods which have dependencies ran in different threads.
I created a minimum reproduceable test case.
My Test classes extend an abstract test class. I don't know if this is related to the problem.
I attached a zip file with the Java source, Test.xml and pom.xml
parallelClasses.zip

EXPECTED:
FirstTest.testTwo should run in thread 11. I expect all test methods from one class to run in the same thread.
ThirdTest.test3a should run after SecondTest class finishes. I expect all test methods in a class to run before another class starts running in the same thread.

ACTUAL:
`[TestNG] Running:
C:\Users\mbullock\workspace\Test\Test.xml

thread 11 STARTING METHOD=FirstTest.testOne
thread 12 STARTING METHOD=SecondTest.test2a
thread 12 STARTING METHOD=ThirdTest.test3a
thread 12 STARTING METHOD=SecondTest.test2b
thread 11 STARTING METHOD=ThirdTest.test3b
thread 12 STARTING METHOD=FirstTest.testTwo

Critical
Total tests run: 6, Failures: 0, Skips: 0
===============================================`

[aksharpanchal]

+1

[dr29bart]

There is a Test annotation parameter : singleThreaded
http://testng.org/doc/documentation-main.html#annotations

Will it solve the issue?

[markdbullock]

Added the following annotation to all three classes plus the abstract class.
@test(singleThreaded=true)
It doesn't solve the problem.

[markdbullock]

I also tested making the base class concrete and making the Test classes not extend a class.
The problem still exists in both cases.

[juherr]

Looks similar to #89

[krmahadevan]

Fixed by #1783.