Package org.infinispan.commons.test

Class ThreadLeakChecker

java.lang.Object
org.infinispan.commons.test.ThreadLeakChecker
public class ThreadLeakChecker extends Object
Check for leaked threads in the test suite.

Every second record new threads and the tests that might have started them. After the last test, log the threads that are still running and the source tests.

Strategies for debugging test suite thread leaks:

  • Use -Dinfinispan.test.parallel.threads=3 (or even less) to narrow down source tests
  • Set a conditional breakpoint in Thread.start with the name of the leaked thread
  • If the thread has the pattern of a particular component, set a conditional breakpoint in that component
Since:
10.0
Author:
Dan Berindei

  • Constructor Details

    • ThreadLeakChecker

      public ThreadLeakChecker()

  • Method Details

    • testStarted

      public static void testStarted(String testName)
      A test class has started, and we should consider it as a potential owner for new threads.

    • saveInitialThreads

      public static void saveInitialThreads()
      Save the system threads in order to ignore them

    • testFinished

      public static void testFinished(String testName)
      A test class has finished, and we should not consider it a potential owner for new threads any more.

    • checkForLeaks

      public static void checkForLeaks(String lastTestName)
      Check for leaked threads. Assumes that no tests are running.

    • ignoreThreadsMatching

      public static void ignoreThreadsMatching(Predicate<Thread> filter)
      Ignore threads matching a predicate.

    • ignoreThread

      public static void ignoreThread(Thread thread)
      Ignore a running thread.

    • ignoreThreadsContaining

      public static void ignoreThreadsContaining(String threadNameRegex)
      Ignore threads containing a regex.