I think there is a code problem here. The geronimo-gbean-deployer
should not need to see TranQL or the transaction manager. It should
only need to see the classes required to process the xml and create
the GBeanData objects. I think there are few possible problems here:
1) The geronimo-gbean-deployer is seeing too many classes - For
example, if the geronimo-gbean-deployer is seeing the TranQL classes,
it must also be able to see all of the dependencies of TranQL which
is my you need to add JTA. I think is where you currently are and
suggest you back out adding the extra dependencies to the geronimo-
gbean-deployer plan.
2) The GBean deployer service is using the wrong class loader to try
to load the gbean service class (the class of the declared gbean
service in the xml file). This should be fairly easy to check by
droping a break point in the deployer and inspecting the class loader
it is using.
3) The class you are loading could have unnecessary coupling which
requires to many classes to be visible to the target class loader.
-dain
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.
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.
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
