https://issues.apache.org/bugzilla/show_bug.cgi?id=53301
Konstantin Kolinko <knst.koli...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |---
Severity|major |normal
--- Comment #6 from Konstantin Kolinko <knst.koli...@gmail.com> ---
Ok. Reproducible.
I modified your SampleServlet to print stacktrace when init() is called, like
this:
[[[
@Override
public void init( ServletConfig config )
throws ServletException
{
log.info( "Init called, config="+config, new Throwable() );
super.init( config );
...
]]]
I'll attach full source later. There are two calls to init() in a row and stack
traces are the following:
[[[
00:58:32.187 [main] INFO init - Tomcat started on port:4396
00:58:32.609 [http-bio-auto-1-exec-1] INFO init - Init called,
config=org.apache.catalina.core.StandardWrapperFacade@15e2075
java.lang.Throwable: null
at org.apache.tomcat.tomcat53301.SampleServlet.init(SampleServlet.java:43)
[classes/:na]
at
org.apache.catalina.startup.Tomcat$ExistingStandardWrapper.loadServlet(Tomcat.java:854)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:857)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:136)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
[na:1.6.0_32]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
[na:1.6.0_32]
at java.lang.Thread.run(Thread.java:662) [na:1.6.0_32]
00:58:32.625 [http-bio-auto-1-exec-1] INFO init - Init called,
config=org.apache.catalina.core.StandardWrapperFacade@15e2075
java.lang.Throwable: null
at org.apache.tomcat.tomcat53301.SampleServlet.init(SampleServlet.java:43)
[classes/:na]
at
org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:877)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:136)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
[na:1.6.0_32]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
[na:1.6.0_32]
at java.lang.Thread.run(Thread.java:662) [na:1.6.0_32]
]]]
Essentially it is the same single call to
org.apache.catalina.core.StandardWrapper.allocate()
and it calls init() twice with the following stack traces
a)
[[[
at org.apache.tomcat.tomcat53301.SampleServlet.init(SampleServlet.java:43)
[classes/:na]
at
org.apache.catalina.startup.Tomcat$ExistingStandardWrapper.loadServlet(Tomcat.java:854)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:857)
[tomcat-embed-core-7.0.27.jar:7.0.27]
]]]
b)
[[[
at org.apache.tomcat.tomcat53301.SampleServlet.init(SampleServlet.java:43)
[classes/:na]
at
org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
[tomcat-embed-core-7.0.27.jar:7.0.27]
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:877)
[tomcat-embed-core-7.0.27.jar:7.0.27]
]]]
The second call happens because StandardWrapper#instanceInitialized flag is
still false, but init() has already been called by
Tomcat$ExistingStandardWrapper.loadServlet().
So either Tomcat$ExistingStandardWrapper should not call init(), or it should
update the flag when doing so.
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