spring-boot-admin Memory leak

Memory leak

Open Jolymmiles opened this issue 1 year ago • 1 comments
Spring Boot Admin Server information

Version: 2.7.18
Spring Boot version: 2.7.15
Configured Security: basic
Description

 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:23:51.670 SEVERE [http-nio-8081-exec-479] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@3f9046de]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@703b5cbc]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:23:51.670 SEVERE [http-nio-8081-exec-479] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@3f9046de]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@4bec4d53]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:24:03.206 INFO [Finalizer] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
	java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1440)
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1428)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1267)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1228)
		at io.netty.util.internal.shaded.org.jctools.queues.ConcurrentCircularArrayQueue.isEmpty(ConcurrentCircularArrayQueue.java:71)
		at io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueue.isEmpty(MpscArrayQueue.java:207)
		at io.netty.buffer.PoolThreadCache.checkCacheMayLeak(PoolThreadCache.java:243)
		at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:234)
		at io.netty.buffer.PoolThreadCache.finalize(PoolThreadCache.java:203)
		at java.lang.System$2.invokeFinalize(System.java:1273)
		at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:102)
		at java.lang.ref.Finalizer.access$100(Finalizer.java:34)
		at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:217)
13-Feb-2024 13:24:03.209 INFO [Finalizer] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
	java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1440)
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1428)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1267)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1228)
		at io.netty.util.internal.shaded.org.jctools.queues.ConcurrentCircularArrayQueue.isEmpty(ConcurrentCircularArrayQueue.java:71)
		at io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueue.isEmpty(MpscArrayQueue.java:207)
		at io.netty.buffer.PoolThreadCache.checkCacheMayLeak(PoolThreadCache.java:243)
		at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:234)
		at io.netty.buffer.PoolThreadCache.finalize(PoolThreadCache.java:203)
		at java.lang.System$2.invokeFinalize(System.java:1273)
		at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:102)
		at java.lang.ref.Finalizer.access$100(Finalizer.java:34)
		at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:217)
13-Feb-2024 13:24:04.500 INFO [http-nio-8081-exec-481] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
13-Feb-2024 13:27:35.315 WARNING [http-nio-8081-exec-485] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:27:35.316 WARNING [http-nio-8081-exec-485] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:27:35.317 WARNING [http-nio-8081-exec-485] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-3] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:27:35.319 WARNING [http-nio-8081-exec-485] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-4] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:27:35.321 SEVERE [http-nio-8081-exec-485] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@172a1d1b]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@39c2f9ac]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:27:35.321 SEVERE [http-nio-8081-exec-485] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@172a1d1b]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@1625c197]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:27:35.321 SEVERE [http-nio-8081-exec-485] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@172a1d1b]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@67934e4]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:27:41.862 INFO [Finalizer] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
	java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1440)
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1428)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1267)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1228)
		at io.netty.util.internal.shaded.org.jctools.queues.ConcurrentCircularArrayQueue.isEmpty(ConcurrentCircularArrayQueue.java:71)
		at io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueue.isEmpty(MpscArrayQueue.java:207)
		at io.netty.buffer.PoolThreadCache.checkCacheMayLeak(PoolThreadCache.java:243)
		at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:234)
		at io.netty.buffer.PoolThreadCache.finalize(PoolThreadCache.java:203)
		at java.lang.System$2.invokeFinalize(System.java:1273)
		at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:102)
		at java.lang.ref.Finalizer.access$100(Finalizer.java:34)
		at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:217)
13-Feb-2024 13:27:42.382 INFO [http-nio-8081-exec-494] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
13-Feb-2024 13:34:52.554 INFO [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.startup.HostConfig.undeploy Undeploying context [/kms-app-admin]
13-Feb-2024 13:34:56.690 WARNING [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:34:56.691 WARNING [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:34:56.693 WARNING [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-3] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:34:56.694 WARNING [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-4] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:34:56.695 SEVERE [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@4a0e19c5]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@3ac0268e]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:34:56.695 SEVERE [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@4a0e19c5]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@257738b9]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:34:56.695 SEVERE [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@4a0e19c5]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@703c29f0]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:34:56.729 INFO [localhost-startStop-16] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [/app/tomcat/tomcat-addons/webapps/kms-app-admin.war]
13-Feb-2024 13:34:56.887 WARNING [localhost-startStop-16] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:34:56.888 WARNING [localhost-startStop-16] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:34:58.735 INFO [Finalizer] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
	java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1440)
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1428)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1267)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1228)
		at io.netty.util.internal.shaded.org.jctools.queues.ConcurrentCircularArrayQueue.isEmpty(ConcurrentCircularArrayQueue.java:71)
		at io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueue.isEmpty(MpscArrayQueue.java:207)
		at io.netty.buffer.PoolThreadCache.checkCacheMayLeak(PoolThreadCache.java:243)
		at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:234)
		at io.netty.buffer.PoolThreadCache.finalize(PoolThreadCache.java:203)
		at java.lang.System$2.invokeFinalize(System.java:1273)
		at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:102)
		at java.lang.ref.Finalizer.access$100(Finalizer.java:34)
		at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:217)
13-Feb-2024 13:34:58.764 INFO [localhost-startStop-16] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
13-Feb-2024 13:35:05.767 INFO [localhost-startStop-16] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/app/tomcat/tomcat-addons/webapps/kms-app-admin.war] has finished in [9,037] ms
13-Feb-2024 13:35:06.224 INFO [http-nio-8081-exec-500] org.apache.catalina.core.StandardWrapper.unload Waiting for [2] instance(s) to be deallocated for Servlet [dispatcherServlet]
13-Feb-2024 13:35:08.427 WARNING [http-nio-8081-exec-500] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:35:08.428 WARNING [http-nio-8081-exec-500] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:35:08.429 SEVERE [http-nio-8081-exec-500] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@7a5c736d]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@3683405]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:35:12.327 WARNING [http-nio-8081-exec-504] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:35:12.329 WARNING [http-nio-8081-exec-504] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:35:13.920 INFO [http-nio-8081-exec-504] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
13-Feb-2024 13:36:42.921 WARNING [http-nio-8081-exec-513] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:36:42.923 WARNING [http-nio-8081-exec-513] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:36:45.891 WARNING [http-nio-8081-exec-520] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:36:45.892 WARNING [http-nio-8081-exec-520] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:36:47.450 INFO [http-nio-8081-exec-520] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
13-Feb-2024 13:41:25.893 INFO [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.startup.HostConfig.undeploy Undeploying context [/kms-app-admin]
13-Feb-2024 13:41:27.999 WARNING [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:41:28.000 WARNING [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:41:28.024 INFO [localhost-startStop-17] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [/app/tomcat/tomcat-addons/webapps/kms-app-admin.war]
13-Feb-2024 13:41:28.160 WARNING [localhost-startStop-17] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:41:28.162 WARNING [localhost-startStop-17] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:41:29.733 INFO [localhost-startStop-17] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
13-Feb-2024 13:41:36.450 INFO [localhost-startStop-17] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/app/tomcat/tomcat-addons/webapps/kms-app-admin.war] has finished in [8,426] ms
13-Feb-2024 13:41:38.770 INFO [http-nio-8081-exec-532] org.apache.catalina.core.StandardWrapper.unload Waiting for [1] instance(s) to be deallocated for Servlet [dispatcherServlet]
13-Feb-2024 13:41:41.490 WARNING [http-nio-8081-exec-532] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:41:41.491 WARNING [http-nio-8081-exec-532] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:41:41.493 WARNING [http-nio-8081-exec-532] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-3] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:41:41.494 WARNING [http-nio-8081-exec-532] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [kms-app-admin] appears to have started a thread named [parallel-4] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:750)
13-Feb-2024 13:41:41.495 SEVERE [http-nio-8081-exec-532] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@5da1eaf8]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@5faf219c]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:41:41.495 SEVERE [http-nio-8081-exec-532] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [kms-app-admin] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@5da1eaf8]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@30ac0574]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
13-Feb-2024 13:41:46.703 WARNING [http-nio-8081-exec-537] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:41:46.705 WARNING [http-nio-8081-exec-537] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
13-Feb-2024 13:41:48.349 INFO [http-nio-8081-exec-537] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
13-Feb-2024 13:41:55.315 INFO [Finalizer] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
	java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1440)
		at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1428)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1267)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1228)
		at io.netty.util.internal.shaded.org.jctools.queues.ConcurrentCircularArrayQueue.isEmpty(ConcurrentCircularArrayQueue.java:71)
		at io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueue.isEmpty(MpscArrayQueue.java:207)
		at io.netty.buffer.PoolThreadCache.checkCacheMayLeak(PoolThreadCache.java:243)
		at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:234)
		at io.netty.buffer.PoolThreadCache$FreeOnFinalize.finalize(PoolThreadCache.java:507)
		at java.lang.System$2.invokeFinalize(System.java:1273)
		at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:102)
		at java.lang.ref.Finalizer.access$100(Finalizer.java:34)
		at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:217)```
Feb 13 '24 13:02 Jolymmiles
Hi @Jolymmiles ,
we cannot see a direct connection to Spring Boot Admin in the stacktrace.
it seems you are starting Threads somewhere (through a ThreadPoolExecutor)
are you creating/storing ThreadLocals on your own?
does this happen only on application shutdown or also when the application is running?
Feb 16 '24 08:02 erikpetzold
We're closing this issue due to missing feedback. If you're still facing problems, please feel free to open up a new issue.
Regards, Uli
Mar 08 '24 07:03 ulischulte
spring-boot-admin spring-boot-admin copied to clipboard

Memory leak

Spring Boot Admin Server information

Description

spring-boot-admin
spring-boot-admin copied to clipboard
