findepi commented on a change in pull request #407: URL: https://github.com/apache/maven-surefire/pull/407#discussion_r783424283
########## File path: surefire-providers/surefire-testng/src/main/java/org/apache/maven/surefire/testng/TestNGExecutor.java ########## @@ -137,6 +152,31 @@ static void run( Iterable<Class<?>> testClasses, String testSourceDirectory, testng.run(); } + private static void addXmlClass( List<XmlClass> xmlClasses, String testClassName ) + { + XmlClass xmlClass = new XmlClass( testClassName ); + if ( XML_CLASS_SET_INDEX != null ) + { + try + { + // In case of parallel test execution with parallel="methods", TestNG orders test execution + // by XmlClass.m_index field. When unset (equal for all XmlClass instances), TestNG can + // invoke `@BeforeClass` setup methods on many instances, without invoking `@AfterClass` + // tearDown methods, thus leading to high resource consumptions when test instances + // allocate resources. + // With index set, order of setup, test and tearDown methods is reasonable, with approximately + // #thread-count many test classes being initialized at given point in time. + // Note: XmlClass.m_index field is set automatically by TestNG when it reads a suite file. + XML_CLASS_SET_INDEX.invoke( xmlClass, xmlClasses.size() ); + } + catch ( ReflectiveOperationException e ) + { + throw new RuntimeException( e ); + } + } Review comment: @Tibor17 it's possible to select and invoke one of the constructors, but i don't think the added complexity is worth the effort (i am mostly concerned about future code readability and maintainability). Note that after all, we're solving a problem that exists in TestNG >= 6.3, and TestNG 5.x is not going to change. The m_index field is used in TestNG 5.x when `preserve-order` is set, but it's not possible to set it when invoking tests via surefire. More precisely, `preserve-order` seems to require a suite file, but then TestNG will populate the m_index, not us. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@maven.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org