TestNG - Running same class with multiple threads in parallel - multithreading

Question

Is there a way to run same class in parallel with multiple threads, like
<suite name="myTestSuite" verbose="1">
<test name="myTest" parallel="classes" thread-count="5">
<classes>
<class name="myPackage.Test" />
</classes>
</test>
</suite>
I want to the class 'myPackage.Test' to be invoked in 5 parallel threads.I know that it works if I want to executed different classes in parallel, like
<suite name="myTestSuite" verbose="1">
<test name="myTest" parallel="classes" thread-count="5">
<classes>
<class name="myPackage.Test1" />
<class name="myPackage.Test2" />
<class name="myPackage.Test3" />
<class name="myPackage.Test4" />
<class name="myPackage.Test5" />
</classes>
</test>
</suite>

Answer 1

As an alternate to the Factory pattern, you could create a <test> node for each time you want to run the class, then parallelize by test. You'd also want to move your parallelization attributes to the <suite> node. For example:
<suite name="mySuite" parallel="tests" thread-count="5">
<test name="myTest1">
<classes>
<class name="myPackage.Test" />
</classes>
</test>
<!-- Repeat the '<test>' node as many times as you wish to run the class -->
</suite>
You'll have to name each <test> uniquely, but this is decently simple way to run the same class many times and in parallel.

Answer 2

What you can do is using a Factory to create 5 instances of your test class.
public class TestFactory {
#Factory
public Object[] createInstances() {
Object[] result = new Object[5];
for (int i = 0; i < 5; i++) {
result[i] = new Test();
}
return result;
}
}
Then, you can use parallel="instances".
<suite name="myTestSuite" verbose="1">
<test name="myTest" parallel="instances" thread-count="5">
<classes>
<class name="myPackage.TestFactory"/>
</classes>
</test>
</suite>