You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@tomcat.apache.org by bu...@apache.org on 2019/10/10 13:00:35 UTC
[Bug 63832] New: Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
Bug ID: 63832
Summary: Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks
can't load class(class from deployed aplication -
probably undeployed)
Product: Tomcat 9
Version: 9.0.24
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: danielcharczynski@o2.pl
Target Milestone: -----
Tomcat is unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
10-Oct-2019 14:37:47.133 SEVERE [main]
org.apache.catalina.core.ContainerBase.stopInternal A child container failed
during stop
java.util.concurrent.ExecutionException: java.lang.InternalError:
Malformed class name
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:982)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1400)
at
org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1389)
at
java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at
org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at
java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:976)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.StandardService.stopInternal(StandardService.java:473)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:994)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at org.apache.catalina.startup.Catalina.stop(Catalina.java:706)
at
org.apache.catalina.startup.Catalina.start(Catalina.java:668)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:344)
at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
Caused by: java.lang.InternalError: Malformed class name
at java.lang.Class.getSimpleName(Class.java:1330)
at java.lang.Class.getCanonicalName(Class.java:1399)
at
org.apache.catalina.loader.WebappClassLoaderBase.getPrettyClassName(WebappClassLoaderBase.java:2073)
at
org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks(WebappClassLoaderBase.java:2037)
at
org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalsForLeaks(WebappClassLoaderBase.java:1965)
at
org.apache.catalina.loader.WebappClassLoaderBase.clearReferences(WebappClassLoaderBase.java:1632)
at
org.apache.catalina.loader.WebappClassLoaderBase.stop(WebappClassLoaderBase.java:1555)
at
org.apache.catalina.loader.WebappLoader.stopInternal(WebappLoader.java:443)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5432)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1400)
at
org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1389)
at
java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at
org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at
java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:976)
... 21 more
10-Oct-2019 14:37:47.134 SEVERE [main]
org.apache.catalina.core.ContainerBase.stopInternal A child container failed
during stop
java.util.concurrent.ExecutionException:
org.apache.catalina.LifecycleException: A child container failed during stop
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:982)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.StandardService.stopInternal(StandardService.java:473)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:994)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at org.apache.catalina.startup.Catalina.stop(Catalina.java:706)
at
org.apache.catalina.startup.Catalina.start(Catalina.java:668)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:344)
at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
Caused by: org.apache.catalina.LifecycleException: A child container
failed during stop
at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:990)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1400)
at
org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1389)
at
java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at
org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at
java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:976)
... 13 more
10-Oct-2019 14:37:47.135 SEVERE [main]
org.apache.catalina.startup.Catalina.stop Error stopping Catalina
org.apache.catalina.LifecycleException: A child container failed during
stop
at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:990)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.StandardService.stopInternal(StandardService.java:473)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:994)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at org.apache.catalina.startup.Catalina.stop(Catalina.java:706)
at
org.apache.catalina.startup.Catalina.start(Catalina.java:668)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:344)
at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
Rafał Gała <ra...@ingbank.pl> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rafal.gala@ingbank.pl
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
Remy Maucherat <re...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|REOPENED |RESOLVED
--- Comment #6 from Remy Maucherat <re...@apache.org> ---
The issue should be fixed: it is about not stopping and cleaning up properly.
As I said before: The root cause was that the container state was not properly
set to FAILED on a JVM error exception class.
The "root cause" is of course not fixed, since it is a classloader problem most
likely caused by your application. It is logged and things will go on from
there. Feel free to investigate about it on the user mailing list, but please
do not reopen the report for now.
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
Remy Maucherat <re...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Remy Maucherat <re...@apache.org> ---
The root cause was that the container state was not properly set to FAILED on a
JVM error exception class.
The fix will be in 9.0.28, 8.5.48 and 7.0.98.
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
--- Comment #8 from Remy Maucherat <re...@apache.org> ---
The fix is preventing improper cleanups but won't go too far beyond that, so a
JVM error class exception is still going to go through. This behavior is
specific to VirtualMachineError (except for StackOverflowError which is
filtered out as recoverable).
If your application doesn't work with the cleanups and you cannot fix the
application, you can disable these, look at the options in the documentation.
The warnings and checks are supposed to warn you about likely bugs and leaks,
if you cannot do anything about them, well ...
https://ci.apache.org/projects/tomcat/tomcat9/docs/config/context.html#Standard_Implementation
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
Remy Maucherat <re...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
OS| |All
--- Comment #1 from Remy Maucherat <re...@apache.org> ---
The exception is properly caught, *but* because of the severity of it it is
allowed to fall through (java.lang.InternalError is a VirtualMachineError).
Then the stop process does not complete due to that.
The code causing the error is reconstructing the class name from a Class
object, so it's rather worrying/weird that it fails.
IMO, the fix is in the InlineExecutorService: it should emulate an executor
with a one thread pool, so it should not propagate an exception/error out of
its execute method and log the trace as severe instead. I will attepmt a fix
and see how testing goes.
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
--- Comment #2 from Remy Maucherat <re...@apache.org> ---
After testing, the InlineExecutorService does the part properly using a
FutureTask, so nothing to fix here.
Problems are:
- ContainerBase.stopInternal throws a LifecycleException on any failure
- If working around that, StandardContext.stopInternal remains in STOPPING
state which causes further LifecycleException
Not sure yet what the best strategy is, probably avoid the first item, and be
more robust about the end state in case of a StandardContext.stopInternal
error.
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
--- Comment #9 from Rafał Gała <ra...@ingbank.pl> ---
Thank you very much for this, will surely come in handy.
I would like to add one more thing - the issue does not exist when Tomcat is
run on JDK11. There have been some fixes related to class naming introduced in
JDK9. If someone struggles with similar problem then upgrading to JDK9+ may be
a possible way to go.
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
--- Comment #7 from Rafał Gała <ra...@ingbank.pl> ---
I agree it is a problem with an application, but should this exception cause
such serious Tomcat shutdown problems? We are using Apache Commons Daemon to
run Tomcat as a Windows service. When we stop the Windows service (net stop...
or Stop from services.msc), it fails to shutdown because Tomcat shutdown
process somehow hangs after this exception occurs. As a result, after about 10
minutes of waiting the JVM is dumped.
Currently we are unable to fix this issue as this is related to Finagle library
which uses ThreadLocal variables that wrap scala objects. When Tomcat shuts
down it calls getClass metod on one of those objects and then calls
getCanonicalName on the class object which fails with above exception. Here is
the name that is causing the exception:
com.twitter.util.Local$Context$EmptyContext$
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
Daniel Charczyński <da...@o2.pl> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #5 from Daniel Charczyński <da...@o2.pl> ---
It looks like problem is not solved...
Current stacktrace on version 8.5.49
25-Nov-2019 11:15:37.790 SEVERE [Catalina-startStop-2]
org.apache.catalina.core.ContainerBase.stopInternal A child container failed
during stop
java.util.concurrent.ExecutionException: java.lang.InternalError:
Malformed class name
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:990)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1428)
at
org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1417)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.InternalError: Malformed class name
at java.lang.Class.getSimpleName(Class.java:1330)
at java.lang.Class.getCanonicalName(Class.java:1399)
at
org.apache.catalina.loader.WebappClassLoaderBase.getPrettyClassName(WebappClassLoaderBase.java:2049)
at
org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks(WebappClassLoaderBase.java:2013)
at
org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalsForLeaks(WebappClassLoaderBase.java:1941)
at
org.apache.catalina.loader.WebappClassLoaderBase.clearReferences(WebappClassLoaderBase.java:1610)
at
org.apache.catalina.loader.WebappClassLoaderBase.stop(WebappClassLoaderBase.java:1550)
at
org.apache.catalina.loader.WebappLoader.stopInternal(WebappLoader.java:446)
at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
at
org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5439)
... 7 more
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org
[Bug 63832] Unable to stop because
WebappClassLoaderBase.checkThreadLocalMapForLeaks can't load class(class from
deployed aplication - probably undeployed)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63832
--- Comment #4 from Daniel Charczyński <da...@o2.pl> ---
Thanks a lot.
Which commit solve this problem?
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tomcat.apache.org
For additional commands, e-mail: dev-help@tomcat.apache.org