Rainer,

On 7/22/2017 2:37 PM, Rainer Jung wrote:
> Am 22.07.2017 um 22:48 schrieb Mark Eggers:
>> On 7/22/2017 12:50 AM, Aurélien Terrestris wrote:
>>> Hello,
>>>
>>> I'm trying the latest Tomcat (9.0.0.M22) with all the default
>>> settings and
>>> applications. When shutting down, it doesn't stop and I'm staying with a
>>> java process which cannot handle any request.
>>> When setting the CATALINA_PID and trying a shutdown -force, it ends in
>>> killing the process.
>>>
>>>
>>>
>>> Here is the catalina.out, with a thread-dump done 20 minutes after the
>>> shutdown :
>>>
>>> 18-Jul-2017 08:49:50.110 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Server
>>> version:        Apache Tomcat/9.0.0.M22
>>> 18-Jul-2017 08:49:50.112 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Server
>>> built:          Jun 21 2017 09:44:18 UTC
>>> 18-Jul-2017 08:49:50.112 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Server
>>> number:         9.0.0.0
>>> 18-Jul-2017 08:49:50.112 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log OS
>>> Name:               Linux
>>> 18-Jul-2017 08:49:50.112 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log OS
>>> Version:            3.10.0-514.el7.x86_64
>>> 18-Jul-2017 08:49:50.112 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log
>>> Architecture:          amd64
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Java
>>> Home:
>>> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.131-3.b12.el7_3.x86_64/jre
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log JVM
>>> Version:           1.8.0_131-b12
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log JVM
>>> Vendor:            Oracle Corporation
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log
>>> CATALINA_BASE:         /home/testusr/cluster/apache-tomcat-9.0.0.M22
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log
>>> CATALINA_HOME:         /home/testusr/cluster/apache-tomcat-9.0.0.M22
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument:
>>> -Djava.util.logging.config.file=/home/testusr/cluster/9/conf/logging.properties
>>>
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument:
>>> -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Djdk.tls.ephemeralDHKeySize=2048
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
>>> 18-Jul-2017 08:49:50.113 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Dcatalina.base=/home/testusr/cluster/9
>>> 18-Jul-2017 08:49:50.114 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Dcatalina.home=/home/testusr/cluster/9
>>> 18-Jul-2017 08:49:50.114 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Djava.io.tmpdir=/home/testusr/cluster/9/temp
>>> 18-Jul-2017 08:49:50.114 INFO [main]
>>> org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR
>>> based
>>> Apache Tomcat Native library which allows optimal performance in
>>> production
>>> environments was not found on the java.library.path:
>>> [/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib]
>>> 18-Jul-2017 08:49:50.191 INFO [main]
>>> org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 08:49:50.210 INFO [main]
>>> org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a
>>> shared
>>> selector for servlet write/read
>>> 18-Jul-2017 08:49:50.213 INFO [main]
>>> org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 08:49:50.215 INFO [main]
>>> org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a
>>> shared
>>> selector for servlet write/read
>>> 18-Jul-2017 08:49:50.218 INFO [main]
>>> org.apache.catalina.startup.Catalina.load Initialization processed in
>>> 495 ms
>>> 18-Jul-2017 08:49:50.239 INFO [main]
>>> org.apache.catalina.core.StandardService.startInternal Starting service
>>> [Catalina]
>>> 18-Jul-2017 08:49:50.239 INFO [main]
>>> org.apache.catalina.core.StandardEngine.startInternal Starting Servlet
>>> Engine: Apache Tomcat/9.0.0.M22
>>> 18-Jul-2017 08:49:50.248 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/ROOT]
>>> 18-Jul-2017 08:52:23.690 WARNING [main]
>>> org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom
>>> Creation
>>> of SecureRandom instance for session ID generation using [SHA1PRNG] took
>>> [153,172] milliseconds.
>>> 18-Jul-2017 08:52:23.705 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/ROOT] has
>>> finished
>>> in [153,457] ms
>>> 18-Jul-2017 08:52:23.705 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/docs]
>>> 18-Jul-2017 08:52:23.717 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/docs] has
>>> finished
>>> in [12] ms
>>> 18-Jul-2017 08:52:23.718 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/examples]
>>> 18-Jul-2017 08:52:23.937 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/examples] has
>>> finished in [219] ms
>>> 18-Jul-2017 08:52:23.938 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/host-manager]
>>> 18-Jul-2017 08:52:23.968 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/host-manager] has
>>> finished in [31] ms
>>> 18-Jul-2017 08:52:23.968 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/manager]
>>> 18-Jul-2017 08:52:23.995 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/manager] has
>>> finished in [27] ms
>>> 18-Jul-2017 08:52:24.000 INFO [main]
>>> org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 08:52:24.012 INFO [main]
>>> org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 08:52:24.059 INFO [main]
>>> org.apache.catalina.startup.Catalina.start Server startup in 153840 ms
>>> 18-Jul-2017 08:53:56.136 INFO [main]
>>> org.apache.catalina.core.StandardServer.await A valid shutdown
>>> command was
>>> received via the shutdown port. Stopping the Server instance.
>>> 18-Jul-2017 08:53:56.137 INFO [main]
>>> org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 08:53:56.189 INFO [main]
>>> org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 08:53:56.240 INFO [main]
>>> org.apache.catalina.core.StandardService.stopInternal Stopping service
>>> [Catalina]
>>> 18-Jul-2017 08:53:56.274 INFO [main]
>>> org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 08:53:56.283 INFO [main]
>>> org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 08:53:56.288 INFO [main]
>>> org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 08:53:56.289 INFO [main]
>>> org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 09:06:40.979 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Server
>>> version:        Apache Tomcat/9.0.0.M22
>>> 18-Jul-2017 09:06:40.981 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Server
>>> built:          Jun 21 2017 09:44:18 UTC
>>> 18-Jul-2017 09:06:40.981 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Server
>>> number:         9.0.0.0
>>> 18-Jul-2017 09:06:40.981 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log OS
>>> Name:               Linux
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log OS
>>> Version:            3.10.0-514.el7.x86_64
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log
>>> Architecture:          amd64
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Java
>>> Home:
>>> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.131-3.b12.el7_3.x86_64/jre
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log JVM
>>> Version:           1.8.0_131-b12
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log JVM
>>> Vendor:            Oracle Corporation
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log
>>> CATALINA_BASE:         /home/testusr/cluster/apache-tomcat-9.0.0.M22
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log
>>> CATALINA_HOME:         /home/testusr/cluster/apache-tomcat-9.0.0.M22
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument:
>>> -Djava.util.logging.config.file=/home/testusr/cluster/apache-tomcat-9.0.0.M22/conf/logging.properties
>>>
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument:
>>> -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Djdk.tls.ephemeralDHKeySize=2048
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
>>> 18-Jul-2017 09:06:40.982 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Dcatalina.base=/home/testusr/cluster/apache-tomcat-9.0.0.M22
>>> 18-Jul-2017 09:06:40.983 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument: -Dcatalina.home=/home/testusr/cluster/apache-tomcat-9.0.0.M22
>>> 18-Jul-2017 09:06:40.983 INFO [main]
>>> org.apache.catalina.startup.VersionLoggerListener.log Command line
>>> argument:
>>> -Djava.io.tmpdir=/home/testusr/cluster/apache-tomcat-9.0.0.M22/temp
>>> 18-Jul-2017 09:06:40.983 INFO [main]
>>> org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR
>>> based
>>> Apache Tomcat Native library which allows optimal performance in
>>> production
>>> environments was not found on the java.library.path:
>>> [/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib]
>>> 18-Jul-2017 09:06:41.067 INFO [main]
>>> org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 09:06:41.091 INFO [main]
>>> org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a
>>> shared
>>> selector for servlet write/read
>>> 18-Jul-2017 09:06:41.094 INFO [main]
>>> org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 09:06:41.095 INFO [main]
>>> org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a
>>> shared
>>> selector for servlet write/read
>>> 18-Jul-2017 09:06:41.096 INFO [main]
>>> org.apache.catalina.startup.Catalina.load Initialization processed in
>>> 514 ms
>>> 18-Jul-2017 09:06:41.144 INFO [main]
>>> org.apache.catalina.core.StandardService.startInternal Starting service
>>> [Catalina]
>>> 18-Jul-2017 09:06:41.144 INFO [main]
>>> org.apache.catalina.core.StandardEngine.startInternal Starting Servlet
>>> Engine: Apache Tomcat/9.0.0.M22
>>> 18-Jul-2017 09:06:41.160 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/ROOT]
>>> 18-Jul-2017 09:07:44.857 WARNING [main]
>>> org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom
>>> Creation
>>> of SecureRandom instance for session ID generation using [SHA1PRNG] took
>>> [63,453] milliseconds.
>>> 18-Jul-2017 09:07:44.885 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/ROOT] has
>>> finished
>>> in [63,725] ms
>>> 18-Jul-2017 09:07:44.886 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/docs]
>>> 18-Jul-2017 09:07:44.904 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/docs] has
>>> finished
>>> in [18] ms
>>> 18-Jul-2017 09:07:44.905 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/examples]
>>> 18-Jul-2017 09:07:45.217 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/examples] has
>>> finished in [312] ms
>>> 18-Jul-2017 09:07:45.217 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/host-manager]
>>> 18-Jul-2017 09:07:45.249 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/host-manager] has
>>> finished in [32] ms
>>> 18-Jul-2017 09:07:45.249 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/manager]
>>> 18-Jul-2017 09:07:45.269 INFO [main]
>>> org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
>>> application directory
>>> [/home/testusr/cluster/apache-tomcat-9.0.0.M22/webapps/manager] has
>>> finished in [20] ms
>>> 18-Jul-2017 09:07:45.277 INFO [main]
>>> org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 09:07:45.298 INFO [main]
>>> org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 09:07:45.301 INFO [main]
>>> org.apache.catalina.startup.Catalina.start Server startup in 64204 ms
>>> 18-Jul-2017 09:07:51.739 INFO [main]
>>> org.apache.catalina.core.StandardServer.await A valid shutdown
>>> command was
>>> received via the shutdown port. Stopping the Server instance.
>>> 18-Jul-2017 09:07:51.739 INFO [main]
>>> org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 09:07:51.793 INFO [main]
>>> org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 09:07:51.844 INFO [main]
>>> org.apache.catalina.core.StandardService.stopInternal Stopping service
>>> [Catalina]
>>> 18-Jul-2017 09:07:51.860 INFO [main]
>>> org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 09:07:51.869 INFO [main]
>>> org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 18-Jul-2017 09:07:51.871 INFO [main]
>>> org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler
>>> ["http-nio-127.0.0.1-8080"]
>>> 18-Jul-2017 09:07:51.872 INFO [main]
>>> org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler
>>> ["ajp-nio-127.0.0.1-8009"]
>>> 2017-07-18 09:40:57
>>> Full thread dump OpenJDK 64-Bit Server VM (25.131-b12 mixed mode):
>>>
>>> "DestroyJavaVM" #45 prio=5 os_prio=0 tid=0x00007f403c68c800 nid=0x11bf5
>>> waiting on condition [0x0000000000000000]
>>>    java.lang.Thread.State: RUNNABLE
>>>
>>> "GC Daemon" #12 daemon prio=2 os_prio=0 tid=0x00007f403c48c800
>>> nid=0x11c02
>>> in Object.wait() [0x00007f4029727000]
>>>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
>>>         at java.lang.Object.wait(Native Method)
>>>         - waiting on <0x00000000e1946fe8> (a sun.misc.GC$LatencyLock)
>>>         at sun.misc.GC$Daemon.run(GC.java:117)
>>>         - locked <0x00000000e1946fe8> (a sun.misc.GC$LatencyLock)
>>>
>>> "pool-1-thread-1" #11 prio=5 os_prio=0 tid=0x00007f403c219000
>>> nid=0x11c01
>>> waiting on condition [0x00007f402a310000]
>>>    java.lang.Thread.State: WAITING (parking)
>>>         at sun.misc.Unsafe.park(Native Method)
>>>         - parking to wait for  <0x00000000e1d8d098> (a
>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
>>>         at
>>> java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
>>>         at
>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
>>>
>>>         at
>>> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
>>>
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
>>>
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
>>>
>>>         at
>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>>
>>>         at java.lang.Thread.run(Thread.java:748)
>>>
>>> "AsyncFileHandlerWriter-1878246837" #10 daemon prio=5 os_prio=0
>>> tid=0x00007f403c140000 nid=0x11c00 waiting on condition
>>> [0x00007f402a411000]
>>>    java.lang.Thread.State: TIMED_WAITING (parking)
>>>         at sun.misc.Unsafe.park(Native Method)
>>>         - parking to wait for  <0x00000000e1d8d820> (a
>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
>>>         at
>>> java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
>>>         at
>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
>>>
>>>         at
>>> java.util.concurrent.LinkedBlockingDeque.pollFirst(LinkedBlockingDeque.java:522)
>>>
>>>         at
>>> java.util.concurrent.LinkedBlockingDeque.poll(LinkedBlockingDeque.java:684)
>>>
>>>         at
>>> org.apache.juli.AsyncFileHandler$LoggerThread.run(AsyncFileHandler.java:160)
>>>
>>>
>>> "Service Thread" #7 daemon prio=9 os_prio=0 tid=0x00007f403c0d8000
>>> nid=0x11bfe runnable [0x0000000000000000]
>>>    java.lang.Thread.State: RUNNABLE
>>>
>>> "C1 CompilerThread1" #6 daemon prio=9 os_prio=0 tid=0x00007f403c0c9000
>>> nid=0x11bfd waiting on condition [0x0000000000000000]
>>>    java.lang.Thread.State: RUNNABLE
>>>
>>> "C2 CompilerThread0" #5 daemon prio=9 os_prio=0 tid=0x00007f403c0bb800
>>> nid=0x11bfc waiting on condition [0x0000000000000000]
>>>    java.lang.Thread.State: RUNNABLE
>>>
>>> "Signal Dispatcher" #4 daemon prio=9 os_prio=0 tid=0x00007f403c0b9800
>>> nid=0x11bfb waiting on condition [0x0000000000000000]
>>>    java.lang.Thread.State: RUNNABLE
>>>
>>> "Finalizer" #3 daemon prio=8 os_prio=0 tid=0x00007f403c08f800
>>> nid=0x11bfa
>>> in Object.wait() [0x00007f402aa17000]
>>>    java.lang.Thread.State: WAITING (on object monitor)
>>>         at java.lang.Object.wait(Native Method)
>>>         - waiting on <0x00000000e1600218> (a
>>> java.lang.ref.ReferenceQueue$Lock)
>>>         at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
>>>         - locked <0x00000000e1600218> (a
>>> java.lang.ref.ReferenceQueue$Lock)
>>>         at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
>>>         at
>>> java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)
>>>
>>> "Reference Handler" #2 daemon prio=10 os_prio=0 tid=0x00007f403c08a800
>>> nid=0x11bf9 in Object.wait() [0x00007f402ab18000]
>>>    java.lang.Thread.State: WAITING (on object monitor)
>>>         at java.lang.Object.wait(Native Method)
>>>         - waiting on <0x00000000e1647670> (a
>>> java.lang.ref.Reference$Lock)
>>>         at java.lang.Object.wait(Object.java:502)
>>>         at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
>>>         - locked <0x00000000e1647670> (a java.lang.ref.Reference$Lock)
>>>         at
>>> java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)
>>>
>>> "VM Thread" os_prio=0 tid=0x00007f403c081000 nid=0x11bf8 runnable
>>>
>>> "GC task thread#0 (ParallelGC)" os_prio=0 tid=0x00007f403c01e800
>>> nid=0x11bf6 runnable
>>>
>>> "GC task thread#1 (ParallelGC)" os_prio=0 tid=0x00007f403c020800
>>> nid=0x11bf7 runnable
>>>
>>> "VM Periodic Task Thread" os_prio=0 tid=0x00007f403c0da800 nid=0x11bff
>>> waiting on condition
>>>
>>> JNI global references: 296
>>>
>>> Heap
>>>  PSYoungGen      total 35840K, used 24826K [0x00000000f5c00000,
>>> 0x00000000f8000000, 0x0000000100000000)
>>>   eden space 34816K, 68% used
>>> [0x00000000f5c00000,0x00000000f7342848,0x00000000f7e00000)
>>>   from space 1024K, 98% used
>>> [0x00000000f7f00000,0x00000000f7ffc010,0x00000000f8000000)
>>>   to   space 1024K, 0% used
>>> [0x00000000f7e00000,0x00000000f7e00000,0x00000000f7f00000)
>>>  ParOldGen       total 22016K, used 12703K [0x00000000e1400000,
>>> 0x00000000e2980000, 0x00000000f5c00000)
>>>   object space 22016K, 57% used
>>> [0x00000000e1400000,0x00000000e2067db8,0x00000000e2980000)
>>>  Metaspace       used 17661K, capacity 18128K, committed 18176K,
>>> reserved
>>> 1064960K
>>>   class space    used 1877K, capacity 2045K, committed 2048K, reserved
>>> 1048576K
>>>
>>
>> Addendum - Start / Stop works from within Eclipse Neon.3. Maybe there's
>> an issue with 9.0.0.M22 and one of the example web applications or apr?
>>
>> By default, Eclipse sets things up with a separate Tomcat environment.
>> It doesn't have the examples in it, nor does it have the apr library.
>>
>> I'll test without the APR library since I hung on closing the
>> ajp-nio-8009 connector.
>>
>> Will report shortly.
>>
>> . . . just my two cents
>> /mde/
> 
> I guess that's the same problem I observed and reported during M22
> release voting which was fixed by Violetta shortly *after* the M22 release:
> 
> http://svn.apache.org/viewvc?rev=1800136&view=rev
> 
> A new feature in M22 - automatic cleanup of old log files - uses a
> separate executor with thread pools and the threads are neither stopped
> during shutdown nor marked as daemon threads. That means they keep the
> JVM from fully shutting down, because it waits for those threads to finish.
> 
> As a workaround you can disable the old log file cleanup feature by
> setting the new attribute maxDays in conf/logging.properties to "-1"
> everywhere. That should also prevent the executor fro actually starting
> any threads.
> 
> The problem should be fixed in the next release. For M23 and M24 there
> was another problem detected during release voting so they were not
> released, but M25 shouldn't be too far away.
> 
> Regards,
> 
> Rainer

Thanks for the update! I guess that I should be monitoring the dev list
more carefully since I'm now starting to explore Tomcat 9.

I've confirmed that this work-around does indeed . . . work.

. . . just my two cents
/mde/

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