Re: Tomcat-5.0.7 - FileLogger of Embedded attempts two start() callsand fails on the second.

[Remy Maucherat]

Wesley Hall wrote:

To demonstrate this problem, i have created a subclass of FileLogger with
the start() method overriden to print a stack whenever it is called. The
result is this...
java.lang.Exception: Start has been called
        at
org.antares.tomcat.TomcatService$TestFileLogger.start(TomcatService.java:312
)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1113)
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:502)
        at org.apache.catalina.startup.Embedded.start(Embedded.java:1026)
        at org.antares.tomcat.TomcatService.start(TomcatService.java:236)
        at org.antares.tomcat.TomcatService.main(TomcatService.java:324)
java.lang.Exception: Start has been called
        at
org.antares.tomcat.TomcatService$TestFileLogger.start(TomcatService.java:312
)
        at
org.apache.catalina.core.StandardContext.start(StandardContext.java:3926)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1127)
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:792)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1127)
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:502)
        at org.apache.catalina.startup.Embedded.start(Embedded.java:1026)
        at org.antares.tomcat.TomcatService.start(TomcatService.java:236)
        at org.antares.tomcat.TomcatService.main(TomcatService.java:324)
As you can see, there is only one call to Embedded.start but this results in
two calls attempting to start the logger.
The second call causes the Logger to throw a LifecycleException and the
server fails to start. The only solution i can find so far is not adding the
logger in the first place.
This wasnt a problem in 4.1.27.
Your logger seems associated with both the host and the engine (and it 
gets started by both, of course). Setting the logger to the engine only 
would work ok (it's not your fault, Embedded does it for you in 
createContext, which is incorrect; somehow, it doesn't do it in createHost).

Can you test and debug this further ?

Remy



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