Testsuite: org.apache.catalina.loader.TestWebappClassLoaderExecutorMemoryLeak
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.292 sec
------------- Standard Output ---------------
class java.lang.Thread [pool-1-thread-5] EXITING
class java.lang.Thread [pool-1-thread-3] EXITING
class java.lang.Thread [pool-1-thread-2] EXITING
class java.lang.Thread [pool-1-thread-1] EXITING
class java.lang.Thread [pool-1-thread-4] EXITING
------------- ---------------- ---------------
------------- Standard Error -----------------
31-Oct-2023 14:31:56.468 INFO [main] org.apache.catalina.startup.LoggingBaseTest.setUp Starting test case [testTimerThreadLeak]
31-Oct-2023 14:31:56.682 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded Apache Tomcat Native library [1.2.38] using APR version [1.6.5].
31-Oct-2023 14:31:56.683 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true], UDS [true].
31-Oct-2023 14:31:56.683 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
31-Oct-2023 14:31:56.686 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 1.1.1f  31 Mar 2020]
31-Oct-2023 14:31:57.206 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-apr-127.0.0.1-auto-1"]
31-Oct-2023 14:31:57.231 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Tomcat]
31-Oct-2023 14:31:57.232 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet engine: [Apache Tomcat/9.0.83-dev]
31-Oct-2023 14:31:57.374 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-apr-127.0.0.1-auto-1-35585"]
31-Oct-2023 14:31:57.513 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [pool-1-thread-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.base@17.0.7/java.lang.Thread.sleep(Native Method)
 app//org.apache.catalina.loader.TestWebappClassLoaderExecutorMemoryLeak$ExecutorServlet$Task.run(TestWebappClassLoaderExecutorMemoryLeak.java:120)
 java.base@17.0.7/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
 java.base@17.0.7/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
 java.base@17.0.7/java.lang.Thread.run(Thread.java:833)
31-Oct-2023 14:31:57.515 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [pool-1-thread-3] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.base@17.0.7/jdk.internal.misc.Unsafe.park(Native Method)
 java.base@17.0.7/java.util.concurrent.locks.LockSupport.park(LockSupport.java:211)
 java.base@17.0.7/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:715)
 java.base@17.0.7/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:938)
 java.base@17.0.7/java.util.concurrent.locks.ReentrantLock$Sync.lock(ReentrantLock.java:153)
 java.base@17.0.7/java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:322)
 java.base@17.0.7/java.util.concurrent.ThreadPoolExecutor.processWorkerExit(ThreadPoolExecutor.java:994)
 java.base@17.0.7/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1150)
 java.base@17.0.7/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
 java.base@17.0.7/java.lang.Thread.run(Thread.java:833)
31-Oct-2023 14:31:57.521 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-apr-127.0.0.1-auto-1-35585"]
31-Oct-2023 14:31:57.531 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service [Tomcat]
31-Oct-2023 14:31:57.532 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-apr-127.0.0.1-auto-1-35585"]
31-Oct-2023 14:31:57.540 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-apr-127.0.0.1-auto-1-35585"]
------------- ---------------- ---------------

Testcase: testTimerThreadLeak took 1.242 sec