Hi,
Mmm, I'd hate having endorsed classes depend on commons-logging ;( I
haven't tried it myself, nor attempted to reproduce your scenario, so
this is just shooting from the hip: what happens if you don't depend
on commons-logging?
Yoav
On 5/24/06, Javier Iglesias <[EMAIL PROTECTED]> wrote:
Hi there!
I'm working on a framework that uses its own URL scheme
("protocol": oan://host/file...) by extension of
java.net.URLStreamHandler. It also uses its own content
handlers by extension of java.net.ContentHandler.
Using Sun's default resolution mechanisms, their respective
packages are appended to the "java.protocol.handler.pkgs" and
"java.content.handler.pkgs" System properties.
Everything works fine, until I try to use my protocol and
content handlers in a webapp deployed on Tomcat 5.5.17/MacOSX...
[1] From what I could gather from the documentation and forums,
the jars containing my classes should be placed in
$CATALINA_HOME/common/endorsed/. Is it correct?
Indeed, they are not considered by Tomcat's class loader if they
are copied to $CATALINA_HOME/mywebapp/WEB-INF/lib/. I tried
$CATALINA_HOME/common/lib/ too, without success.
[2] Apparently, all the dependencies (.jars) required by my
handlers jars should also be placed in $CATALINA_HOME/common/endorsed/
or the classes cannot be instantiated by mines. Still correct?
[3] One of those dependencies itself depends on
apache-commons-logging.jar.
[3a] If I put this jar in $CATALINA_HOME/common/endorsed/, Tomcat
refuses to launch. Does it happen due to a collision with
$CATALINA_HOME/bin/commons-logging-api.jar?
-------------------------------------------------------------------------------------
Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException:
java.lang.NullPointerException (Caused by java.lang.NullPointerException))
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at org.apache.catalina.startup.Bootstrap.<clinit>(Bootstrap.java:53)
Caused by: org.apache.commons.logging.LogConfigurationException:
java.lang.NullPointerException (Caused by java.lang.NullPointerEx
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:397)
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
... 4 more
Caused by: java.lang.NullPointerException
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:374)
... 5 more
-------------------------------------------------------------------------------------
[3b] If I remove apache-commons-logging.jar. from
$CATALINA_HOME/common/endorsed/, then I get a
NoClassDefFoundError for org.apache.commons.logging.LogFactory
Using java -verbose... I could check that my classes are properly
loaded, as well as org.apache.commons.logging.LogFactory by the System,
but this loading fails when requested through my code's dependencies.
Thanks in advance for all the wisdom you will poor into my inbox!
Best wishes,
--javier
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Yoav Shapira
Nimalex LLC
1 Mifflin Place, Suite 310
Cambridge, MA, USA
[EMAIL PROTECTED] / www.yoavshapira.com
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