Value of a ThreadLocal get is always null inside a ITestListener when run through testng.xml with parallel enabled
prvn
public class CoreClass {
private static ThreadLocal<String> threadLocalString = new ThreadLocal<String>();
public static String getThreadLocalString() {
return threadLocalString.get();
}
public static void setThreadLocalString(String value) {
threadLocalString.set(value);
}
}
@Listeners(com.java.testng.play.TestListener.class)
public class TestClass {
@Test
public void testClassMethod() {
CoreClass.setThreadLocalString("newTest....");
System.out.println(CoreClass.getThreadLocalString());
}
}
public class TestListener implements ITestListener {
public void onTestStart(ITestResult result) {
// TODO Auto-generated method stub
}
public void onTestSuccess(ITestResult result) {
// TODO Auto-generated method stub
}
public void onTestFailure(ITestResult result) {
// TODO Auto-generated method stub
}
public void onTestSkipped(ITestResult result) {
// TODO Auto-generated method stub
}
public void onTestFailedButWithinSuccessPercentage(ITestResult result) {
// TODO Auto-generated method stub
}
public void onStart(ITestContext context) {
// TODO Auto-generated method stub
}
public void onFinish(ITestContext context) {
System.out.println("Value:::: " + CoreClass.getThreadLocalString());
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite thread-count="2" name="Suite" parallel="classes">
<test name="Test">
<classes>
<class name="com.java.testng.play.TestClass"/>
</classes>
</test> <!-- Test -->
</suite> <!-- Suite -->
Now if I run this testng.xml everything works fine except the "onFinish" method. The system out always returns null. But when I run the test individually without testng.xml or when I don't run tests in parallel by enabling it in testng.xml it works fine. The system.out results value normally. Why is this happening?