Re: Exception invoking periodic operation

[John Turner]

My advice: Tomcat 5 is alpha.  As a newbie, switch to 4.1.24, then see 
if you have the same problem.

John

Moraes, Fabio wrote:

(I'm not sure if everybody saw this message, so I'm reposting it. Sorry for
the inconvenience)
Hello all,

        I'm a begginner with Servlets, Tomcat and stuff, so, please, don't
laff on me ! :)
        Scene: I installed Tomcat 5, J2SDK 1.4.2 and MySQL 4.0.13 on a Win2k
Professional.
        While trying some servlets to authenticate users, i get this error
again and again ...
SEVERE: Exception invoking periodic operation:
org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationExc
eption: java.lang.IncompatibleClassChangeError:
org.apache.commons.logging.impl.SimpleLog
        at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.ja
va:532)
        at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.ja
va:272)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:414)
        at
org.apache.catalina.core.StandardContext.start(StandardContext.java:3849)
        at
org.apache.catalina.core.StandardContext.reload(StandardContext.java:2728)
        at
org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.j
ava:4375)
        at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processC
hildren(Conta inerBase.java:1654)
        at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processC
hildren(Conta
inerBase.java:1663)
        at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processC
hildren(Conta
inerBase.java:1663)
        at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(Cont
ainerBase.java:1643)
        at java.lang.Thread.run(Thread.java:534)
Caused by: org.apache.commons.logging.LogConfigurationException:
java.lang.IncompatibleClassChangeError:
org.apache.commons.logging.impl.SimpleLog
        at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryI
mpl.java:416)
        at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.ja
va:525)
        ... 10 more

Caused by: java.lang.IncompatibleClassChangeError:
org.apache.commons.logging.impl.SimpleLog
        at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1265)
        at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1225)
        at
org.apache.commons.logging.impl.LogFactoryImpl$1.run(LogFactoryImpl.java:460
)
        at java.security.AccessController.doPrivileged(Native Method)
        at
org.apache.commons.logging.impl.LogFactoryImpl.loadClass(LogFactoryImpl.java
:454)
        at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryI
mpl.java:406)
        ... 11 more

	Could anyone help me ?

Thanks in advance,

---
 Fabio Moraes
 [EMAIL PROTECTED]
 System Engineer
 Work Force Management System
 +55 21 3088 9548
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]


---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]