David Jencks wrote:
On Feb 4, 2006, at 8:31 AM, Joe Bohn wrote:
Here's an update on where I'm at with this and to see if anybody has
any other ideas (thanks for the help I've already received from David
Jencks and Matt).
The classloader problem appears to be coming from the jetty
deployment of daytrader during the configs build. By trial and error
I discovered that this appears to have nothing to do with OpenEJB or
OpenEJB-deployer as we once thought but rather jetty- deployer.
Can you explain your reasoning? The stack trace looks like it is
coming out of the openejb builder.
I may be mistaken, but I was basing this assumption on the following:
1) Running the daytrader config build produced these messages that led
me to believe the parent was geronimo-gbean-deployer:
681 [main] DEBUG org.apache.geronimo.gbean.runtime.GBeanInstanceState -
GBeanInstanceState for:
geronimo.maven:J2EEApplication=null,J2EEModule=geronimo/geronimo-gbean-deployer/1.1-SNAPSHOT/car,J2EESe
rver=geronimo,j2eeType=Deployer,name=Deployer State changed from stopped
to starting
681 [main] DEBUG org.apache.geronimo.gbean.runtime.GBeanInstanceState -
Checking if parent is running:
parent=geronimo.config:name="geronimo/geronimo-gbean-deployer/1.1-SNAPSHOT/car"
681 [main] DEBUG org.apache.geronimo.gbean.runtime.GBeanInstanceState -
Parent is running:
parent=geronimo.config:name="geronimo/geronimo-gbean-deployer/1.1-SNAPSHOT/car"
Retrieving document at 'WEB-INF/wsdl/TradeServices.wsdl'.
Retrieving document at 'META-INF/wsdl/TradeServices.wsdl'.
Retrieving document at 'WEB-INF/wsdl/TradeServices.wsdl'.
17856 [main] ERROR org.apache.geronimo.deployment.Deployer - Deployment
failed due to
java.lang.NoClassDefFoundError: org/tranql/ejb/EJBProxyFactory
at java.lang.ClassLoader.defineClass0(Native Method)
2) config openejb-deployer already had a geronimo.dependency on tranql.
3) Adding a tranql dep. to openejb-builder didn't change the result.
3) Adding a tranql dep. to the config openejb didn't change the result.
4) Adding a tranql dep. to geronimo-gbean-deployer did change the result.
Here's a graph of the jetty-deployer parent dependencies (I followed
Matt's lead on creating text diagrams :-) ).
geronimo-gbean-deployer j2ee-server
A A
| parent |
|------------------------------|
|
j2ee-deployer jetty
A A
| parent |
|----------------------|
|
jetty-deployer
Debug messages seem to indicate that the classloader in question is
the geroniom-gbean-deployer class loader and I have had some marginal
success (ie. changing the problem) by including dependencies in this
config. However, I can't quite make sense of it.
As dain mentioned, including more in the geronimo-gbean-deployer
classpath is definitely the wrong approach. I believe you need to
figure out why that classloader is being used rather than the openejb
config classloader which is the one that should contain the tranql
classes.
It is possible that we need to supply a classloader such as the
openejb-builder classloader to the proxy construction code. I would
start by double checking that the openejb config classloader actually
has the tranql classes in it and that the openejb-builder config
classloader can therefore load them.
Openejb config does not contain a geronimo.dependency on tranql and
adding one doesn't seem to make a difference to the initial failure in
daytrader jetty config. Also, openejb-builder doesn't have a
dependency on openejb config. The openejb-deployer config does have a
dependency (import) on openejb. However, this doesn't seem to help us
get the tranql classes in the classloader (even when I added it as a
geronimo.dependency).
I guess I'll have to get maven working in eclipse so that I can better
inspect the classloaders and determine the cause of the failure. Thanks
for the tips and please let me know if this additional information helps
explain things better.
Joe
thanks
david jencks
geronimo-gbean-deployer never had a dependency to rmi-naming to begin
with. On the other hand, both the jetty config and the j2ee- server
config do have a dependency to rmi-naming. So I would have thought
that adding the tranql dependency here would improve things. But it
had no effect at all. However, it changes the problem if I add the
tranql dependency to geronimo-gbean-deployer. I then get this error:
26979 [main] ERROR org.apache.geronimo.deployment.Deployer -
Deployment failed due to
java.lang.NoClassDefFoundError: javax/transaction/TransactionManager
With Matt's help I found this class in the jta spec and added a
dependency for that as well to geronimo-gbean-deployer which then
resulted in this error:
14371 [main] ERROR org.apache.geronimo.deployment.Deployer -
Deployment failed due to
java.lang.LinkageError: loader constraints violated when linking
javax/transaction/UserTransaction class
I'm not even sure exactly what a LinkageError is .... but I wonder if
I'm just chasing my tail anyway. Having the dependency on tranql et.
al. in geroniom-gbean-deployer might not be any better than having it
in rmi-naming (still seems misplaced).
Any hints/suggestions are welcome.
BTW, out of about 22 questionable jars included in the minimal tomcat
assembly I was able to remove 19 of them with the minimal assembly
still functioning. Of course, I can only make these changes for that
assembly if I can get around these side-effect problems in other
configurations and assemblies.
Joe
Joe Bohn wrote:
I'm looking to eliminate some of the unnecessary dependencies
defined in our modules and configurations so that we can build
smaller assemblies.
While investigating what would be necessary to remove the tranql jar
from the minimal assembly I removed a dependency to tranql in the
rmi-naming configuration.
I expected some problems, but the result I received is a bit
strange. I get the NoClassDefFoundError listed below when deploying
(as part of the build) the configuration for Daytrader. Is this
expected based upon removing the tranql dependency from rmi-naming
or is there something strange going on with the classloaders?
+----------------------------------------
| configurations Daytrader using derby deployed on jetty
| Memory: 52M/63M
+----------------------------------------
DEPRECATED: the default goal should be specified in the <build>
section of project.xml instead of maven.xml
DEPRECATED: the default goal should be specified in the <build>
section of project.xml instead of maven.xml
build:end:
You are working offline so the build will continue, but geronimo-
daytrader-derby-db-1.1-SNAPSHOT.jar may be out of date!
You are working offline so the build will continue, but daytrader-
ear-1.1-SNAPSHOT.ear may be out of date!
build:start:
multiproject:install-callback:
[echo] Running car:install for Daytrader using derby deployed on
jetty
Retrieving document at 'WEB-INF/wsdl/TradeServices.wsdl'.
Retrieving document at 'META-INF/wsdl/TradeServices.wsdl'.
Retrieving document at 'WEB-INF/wsdl/TradeServices.wsdl'.
143877 [main] ERROR org.apache.geronimo.deployment.Deployer -
Deployment failed due to
java.lang.NoClassDefFoundError: org/tranql/ejb/EJBProxyFactory
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at java.security.SecureClassLoader.defineClass
(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java: 251)
at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at
org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass
(MultiParentClassLoader.java:209) at
java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass
(MultiParentClassLoader.java:201) at
java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass
(MultiParentClassLoader.java:201) at
java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at java.lang.ClassLoader.loadClassInternal
(ClassLoader.java:302)
at
org.openejb.deployment.OpenEJBModuleBuilder.createEJBProxyFactory
(OpenEJBModuleBuilder.java:579) at
org.openejb.deployment.CMPEntityBuilder$1.buildEJBProxyFactory
(CMPEntityBuilder.java:125) at
org.openejb.deployment.SchemataBuilder.processEnterpriseBeans
(SchemataBuilder.java:306) ...
Thanks,
Joe
---
Joe Bohn
joe.bohn at earthlink.net
"He is no fool who gives what he cannot keep, to gain what he cannot
lose." -- Jim Elliot
--
Joe Bohn
joe.bohn at earthlink.net
"He is no fool who gives what he cannot keep, to gain what he cannot
lose." -- Jim Elliot
--
Joe Bohn
joe.bohn at earthlink.net
"He is no fool who gives what he cannot keep, to gain what he cannot
lose." -- Jim Elliot
