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Posted to user@geronimo.apache.org by Łukasz Budnik <lu...@gmail.com> on 2008/12/15 20:12:12 UTC
class loading: LinkageError: loader constraint violation
Hi all,
I'm exposing some methods of my SLSB as WebServices (@WebService,
@WebMethod) etc.
All works.
Recently I have added new functionality. I'm invoking external web
services using Axis2: org.apache.axis2.client.ServiceClient.
I added this dependency:
<dependency>
<groupId>org.apache.axis2</groupId>
<artifactId>axis2-kernel</artifactId>
<version>1.3</version>
<type>jar</type>
</dependency>
During deployment of my application (and of course @WebService SLSB)
there is an error.
[exec] Error: Operation failed: start of
[exec] org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
[exec]
[exec] Unknown start exception
[exec]
[exec] Configuration
org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
[exec] to start due to the following reasons:
[exec]
[exec] The service
[exec]
EJBModule=NuntiusEJB.jar,J2EEApplication=org.xh.nuntius/EnterpriseContainer/0.2-dev/car,StatelessSessionBean=ExecutionLoggerImpl,j2eeType=WS
Link,name=ExecutionLoggerImpl
[exec] did not start because
[exec] org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver cannot be
[exec] cast to org.apache.axis2.engine.MessageReceiver
Not good...
Hmmm...
If I remove axis2-kernel dependency, application is deployed - which is weird.
But when execution gets to:
serviceClient.sendReceiveNonBlocking(OMXMLUtils.parseString(payload), callback);
I get:
LinkageError: loader constraint violation: when resolving method
"org.apache.axis2.client.ServiceClient.sendReceiveNonBlocking(Lorg/apache/axiom/om/OMElement;Lorg/apache/axis2/client/async/AxisCallback;)V"
the class loader (instance of
org/apache/geronimo/kernel/classloader/JarFileClassLoader) of the
current class, org/xh/nuntius/enterprise/broker/client/AsynchronousAxis2ServiceClient,
and the class loader (instance of
org/apache/geronimo/kernel/classloader/JarFileClassLoader) for
resolved class, org/apache/axis2/client/ServiceClient, have different
Class objects for the type org/apache/axiom/om/OMElement used in the
signature
I'm 100% confused.
ServiceClient is defined in axis2-kernel. I cannot defined it
explicitly because my @WebService will not be created.
When I skip this dependency Geronimo somehow is adding it when doing
@WebService stuff and there will be 2 different classes for
org/apache/axiom/om/OMElement.
Any ideas? Or maybe I should post this to Geronimo dev?
best regards
Łukasz
Re: class loading: LinkageError: loader constraint violation
Posted by Jarek Gawor <jg...@gmail.com>.
If the JAX-WS web service was successfully deployed, the application
already has all the Axis2 jars (and their dependencies) in the
classloader. So adding an explicit axis2-kernel.jar dependency should
have no effect unless you specified inverse-classloading in the
Geronimo deployment descriptor. But it's hard to tell what's going on
without more details about your application, its structure, and its
deployment descriptors.
Jarek
On Mon, Dec 15, 2008 at 5:13 PM, Łukasz Budnik <lu...@gmail.com> wrote:
> Hi Jacek,
>
> I'm using Geronimo 2.1 with Tomcat. I use axis2-kernel and axiom-api
> that are shipped with G 2.1.
>
> If Geronimo with Tomcat uses Axis2 as the JAX-WS provider then why,
> after adding explicit axis2-kernel dependency I have class cast
> exception:
>
>>> [exec] Error: Operation failed: start of
>>> [exec] org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>>> [exec]
>>> [exec] Unknown start exception
>>> [exec]
>>> [exec] Configuration
>>> org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>>> [exec] to start due to the following reasons:
>>> [exec]
>>> [exec] The service
>>> [exec]
>>> EJBModule=NuntiusEJB.jar,J2EEApplication=org.xh.nuntius/EnterpriseContainer/0.2-dev/car,StatelessSessionBean=ExecutionLoggerImpl,j2eeType=WS
>>> Link,name=ExecutionLoggerImpl
>>> [exec] did not start because
>>> [exec] org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver cannot be
>>> [exec] cast to org.apache.axis2.engine.MessageReceiver
>
> Is there any way I can use axis2-kernel <dependency /> with JAX-WS?
>
> thanks
> Łukasz
>
> 2008/12/15 Jarek Gawor <jg...@gmail.com>:
>> Lukasz,
>>
>> Are you deploying your app on Geronimo Tomcat assembly (which uses
>> Axis2 as the JAX-WS provider by default)? Does your application
>> contain any of the axis2 jars or its dependencies (such as Axiom,
>> etc.)? Also, looks like your application contains some code that
>> extends Axis2 API. What version of Axis2 was that code built with?
>>
>> In general, if you are witting a JAX-WS web services, you should stay
>> with the JAX-WS API in order to keep your application portable. For
>> example, you can use the @WebServiceRef (that is, Service AP) to
>> invoke other web services. If you are using proprietary Axis2 API (and
>> extensions of it) you have to make sure all of the code is built with
>> the same version of Axis2 as what is in Geronimo.
>>
>> Jarek
>>
>> On Mon, Dec 15, 2008 at 2:12 PM, Łukasz Budnik <lu...@gmail.com> wrote:
>>> Hi all,
>>>
>>> I'm exposing some methods of my SLSB as WebServices (@WebService,
>>> @WebMethod) etc.
>>>
>>> All works.
>>>
>>> Recently I have added new functionality. I'm invoking external web
>>> services using Axis2: org.apache.axis2.client.ServiceClient.
>>>
>>> I added this dependency:
>>>
>>> <dependency>
>>> <groupId>org.apache.axis2</groupId>
>>> <artifactId>axis2-kernel</artifactId>
>>> <version>1.3</version>
>>> <type>jar</type>
>>> </dependency>
>>>
>>> During deployment of my application (and of course @WebService SLSB)
>>> there is an error.
>>>
>>> [exec] Error: Operation failed: start of
>>> [exec] org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>>> [exec]
>>> [exec] Unknown start exception
>>> [exec]
>>> [exec] Configuration
>>> org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>>> [exec] to start due to the following reasons:
>>> [exec]
>>> [exec] The service
>>> [exec]
>>> EJBModule=NuntiusEJB.jar,J2EEApplication=org.xh.nuntius/EnterpriseContainer/0.2-dev/car,StatelessSessionBean=ExecutionLoggerImpl,j2eeType=WS
>>> Link,name=ExecutionLoggerImpl
>>> [exec] did not start because
>>> [exec] org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver cannot be
>>> [exec] cast to org.apache.axis2.engine.MessageReceiver
>>>
>>> Not good...
>>>
>>> Hmmm...
>>>
>>> If I remove axis2-kernel dependency, application is deployed - which is weird.
>>>
>>> But when execution gets to:
>>>
>>> serviceClient.sendReceiveNonBlocking(OMXMLUtils.parseString(payload), callback);
>>>
>>> I get:
>>>
>>> LinkageError: loader constraint violation: when resolving method
>>> "org.apache.axis2.client.ServiceClient.sendReceiveNonBlocking(Lorg/apache/axiom/om/OMElement;Lorg/apache/axis2/client/async/AxisCallback;)V"
>>> the class loader (instance of
>>> org/apache/geronimo/kernel/classloader/JarFileClassLoader) of the
>>> current class, org/xh/nuntius/enterprise/broker/client/AsynchronousAxis2ServiceClient,
>>> and the class loader (instance of
>>> org/apache/geronimo/kernel/classloader/JarFileClassLoader) for
>>> resolved class, org/apache/axis2/client/ServiceClient, have different
>>> Class objects for the type org/apache/axiom/om/OMElement used in the
>>> signature
>>>
>>> I'm 100% confused.
>>>
>>> ServiceClient is defined in axis2-kernel. I cannot defined it
>>> explicitly because my @WebService will not be created.
>>>
>>> When I skip this dependency Geronimo somehow is adding it when doing
>>> @WebService stuff and there will be 2 different classes for
>>> org/apache/axiom/om/OMElement.
>>>
>>> Any ideas? Or maybe I should post this to Geronimo dev?
>>>
>>> best regards
>>> Łukasz
>>>
>>
>
Re: class loading: LinkageError: loader constraint violation
Posted by Łukasz Budnik <lu...@gmail.com>.
Hi Jarek,
I'm so sorry to call you Jacek last night.
I should be more careful next time! First two characters match, last
three not...
I have a work around for that. And if it's up to me - I'm happy
because my application deploys and runs :)
But it does not look good.
G2.1 with Tomcat uses Axis2 as JAX-WS provider.
When I expose some of my SLSBs methods as web services G2.1 adds Axis2
classes to the class loader (for example the Axis2 ServiceClient
class).
I'm not defining dependency for axis2-kernel (this package contains
ServiceClient class) explicitly because there will be class cast
exception during deployment.
Then I simply add:
<non-overridable-classes>
<filter>org.apache.axiom.</filter>
</non-overridable-classes>
to my descriptors.
And it works. But it is a little bit tricky.
thanks and best regards!
Łukasz
2008/12/15 Łukasz Budnik <lu...@gmail.com>:
> Hi Jacek,
>
> I'm using Geronimo 2.1 with Tomcat. I use axis2-kernel and axiom-api
> that are shipped with G 2.1.
>
> If Geronimo with Tomcat uses Axis2 as the JAX-WS provider then why,
> after adding explicit axis2-kernel dependency I have class cast
> exception:
>
>>> [exec] Error: Operation failed: start of
>>> [exec] org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>>> [exec]
>>> [exec] Unknown start exception
>>> [exec]
>>> [exec] Configuration
>>> org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>>> [exec] to start due to the following reasons:
>>> [exec]
>>> [exec] The service
>>> [exec]
>>> EJBModule=NuntiusEJB.jar,J2EEApplication=org.xh.nuntius/EnterpriseContainer/0.2-dev/car,StatelessSessionBean=ExecutionLoggerImpl,j2eeType=WS
>>> Link,name=ExecutionLoggerImpl
>>> [exec] did not start because
>>> [exec] org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver cannot be
>>> [exec] cast to org.apache.axis2.engine.MessageReceiver
>
> Is there any way I can use axis2-kernel <dependency /> with JAX-WS?
>
> thanks
> Łukasz
>
> 2008/12/15 Jarek Gawor <jg...@gmail.com>:
>> Lukasz,
>>
>> Are you deploying your app on Geronimo Tomcat assembly (which uses
>> Axis2 as the JAX-WS provider by default)? Does your application
>> contain any of the axis2 jars or its dependencies (such as Axiom,
>> etc.)? Also, looks like your application contains some code that
>> extends Axis2 API. What version of Axis2 was that code built with?
>>
>> In general, if you are witting a JAX-WS web services, you should stay
>> with the JAX-WS API in order to keep your application portable. For
>> example, you can use the @WebServiceRef (that is, Service AP) to
>> invoke other web services. If you are using proprietary Axis2 API (and
>> extensions of it) you have to make sure all of the code is built with
>> the same version of Axis2 as what is in Geronimo.
>>
>> Jarek
>>
>> On Mon, Dec 15, 2008 at 2:12 PM, Łukasz Budnik <lu...@gmail.com> wrote:
>>> Hi all,
>>>
>>> I'm exposing some methods of my SLSB as WebServices (@WebService,
>>> @WebMethod) etc.
>>>
>>> All works.
>>>
>>> Recently I have added new functionality. I'm invoking external web
>>> services using Axis2: org.apache.axis2.client.ServiceClient.
>>>
>>> I added this dependency:
>>>
>>> <dependency>
>>> <groupId>org.apache.axis2</groupId>
>>> <artifactId>axis2-kernel</artifactId>
>>> <version>1.3</version>
>>> <type>jar</type>
>>> </dependency>
>>>
>>> During deployment of my application (and of course @WebService SLSB)
>>> there is an error.
>>>
>>> [exec] Error: Operation failed: start of
>>> [exec] org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>>> [exec]
>>> [exec] Unknown start exception
>>> [exec]
>>> [exec] Configuration
>>> org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>>> [exec] to start due to the following reasons:
>>> [exec]
>>> [exec] The service
>>> [exec]
>>> EJBModule=NuntiusEJB.jar,J2EEApplication=org.xh.nuntius/EnterpriseContainer/0.2-dev/car,StatelessSessionBean=ExecutionLoggerImpl,j2eeType=WS
>>> Link,name=ExecutionLoggerImpl
>>> [exec] did not start because
>>> [exec] org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver cannot be
>>> [exec] cast to org.apache.axis2.engine.MessageReceiver
>>>
>>> Not good...
>>>
>>> Hmmm...
>>>
>>> If I remove axis2-kernel dependency, application is deployed - which is weird.
>>>
>>> But when execution gets to:
>>>
>>> serviceClient.sendReceiveNonBlocking(OMXMLUtils.parseString(payload), callback);
>>>
>>> I get:
>>>
>>> LinkageError: loader constraint violation: when resolving method
>>> "org.apache.axis2.client.ServiceClient.sendReceiveNonBlocking(Lorg/apache/axiom/om/OMElement;Lorg/apache/axis2/client/async/AxisCallback;)V"
>>> the class loader (instance of
>>> org/apache/geronimo/kernel/classloader/JarFileClassLoader) of the
>>> current class, org/xh/nuntius/enterprise/broker/client/AsynchronousAxis2ServiceClient,
>>> and the class loader (instance of
>>> org/apache/geronimo/kernel/classloader/JarFileClassLoader) for
>>> resolved class, org/apache/axis2/client/ServiceClient, have different
>>> Class objects for the type org/apache/axiom/om/OMElement used in the
>>> signature
>>>
>>> I'm 100% confused.
>>>
>>> ServiceClient is defined in axis2-kernel. I cannot defined it
>>> explicitly because my @WebService will not be created.
>>>
>>> When I skip this dependency Geronimo somehow is adding it when doing
>>> @WebService stuff and there will be 2 different classes for
>>> org/apache/axiom/om/OMElement.
>>>
>>> Any ideas? Or maybe I should post this to Geronimo dev?
>>>
>>> best regards
>>> Łukasz
>>>
>>
>
Re: class loading: LinkageError: loader constraint violation
Posted by Łukasz Budnik <lu...@gmail.com>.
Hi Jacek,
I'm using Geronimo 2.1 with Tomcat. I use axis2-kernel and axiom-api
that are shipped with G 2.1.
If Geronimo with Tomcat uses Axis2 as the JAX-WS provider then why,
after adding explicit axis2-kernel dependency I have class cast
exception:
>> [exec] Error: Operation failed: start of
>> [exec] org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>> [exec]
>> [exec] Unknown start exception
>> [exec]
>> [exec] Configuration
>> org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>> [exec] to start due to the following reasons:
>> [exec]
>> [exec] The service
>> [exec]
>> EJBModule=NuntiusEJB.jar,J2EEApplication=org.xh.nuntius/EnterpriseContainer/0.2-dev/car,StatelessSessionBean=ExecutionLoggerImpl,j2eeType=WS
>> Link,name=ExecutionLoggerImpl
>> [exec] did not start because
>> [exec] org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver cannot be
>> [exec] cast to org.apache.axis2.engine.MessageReceiver
Is there any way I can use axis2-kernel <dependency /> with JAX-WS?
thanks
Łukasz
2008/12/15 Jarek Gawor <jg...@gmail.com>:
> Lukasz,
>
> Are you deploying your app on Geronimo Tomcat assembly (which uses
> Axis2 as the JAX-WS provider by default)? Does your application
> contain any of the axis2 jars or its dependencies (such as Axiom,
> etc.)? Also, looks like your application contains some code that
> extends Axis2 API. What version of Axis2 was that code built with?
>
> In general, if you are witting a JAX-WS web services, you should stay
> with the JAX-WS API in order to keep your application portable. For
> example, you can use the @WebServiceRef (that is, Service AP) to
> invoke other web services. If you are using proprietary Axis2 API (and
> extensions of it) you have to make sure all of the code is built with
> the same version of Axis2 as what is in Geronimo.
>
> Jarek
>
> On Mon, Dec 15, 2008 at 2:12 PM, Łukasz Budnik <lu...@gmail.com> wrote:
>> Hi all,
>>
>> I'm exposing some methods of my SLSB as WebServices (@WebService,
>> @WebMethod) etc.
>>
>> All works.
>>
>> Recently I have added new functionality. I'm invoking external web
>> services using Axis2: org.apache.axis2.client.ServiceClient.
>>
>> I added this dependency:
>>
>> <dependency>
>> <groupId>org.apache.axis2</groupId>
>> <artifactId>axis2-kernel</artifactId>
>> <version>1.3</version>
>> <type>jar</type>
>> </dependency>
>>
>> During deployment of my application (and of course @WebService SLSB)
>> there is an error.
>>
>> [exec] Error: Operation failed: start of
>> [exec] org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>> [exec]
>> [exec] Unknown start exception
>> [exec]
>> [exec] Configuration
>> org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
>> [exec] to start due to the following reasons:
>> [exec]
>> [exec] The service
>> [exec]
>> EJBModule=NuntiusEJB.jar,J2EEApplication=org.xh.nuntius/EnterpriseContainer/0.2-dev/car,StatelessSessionBean=ExecutionLoggerImpl,j2eeType=WS
>> Link,name=ExecutionLoggerImpl
>> [exec] did not start because
>> [exec] org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver cannot be
>> [exec] cast to org.apache.axis2.engine.MessageReceiver
>>
>> Not good...
>>
>> Hmmm...
>>
>> If I remove axis2-kernel dependency, application is deployed - which is weird.
>>
>> But when execution gets to:
>>
>> serviceClient.sendReceiveNonBlocking(OMXMLUtils.parseString(payload), callback);
>>
>> I get:
>>
>> LinkageError: loader constraint violation: when resolving method
>> "org.apache.axis2.client.ServiceClient.sendReceiveNonBlocking(Lorg/apache/axiom/om/OMElement;Lorg/apache/axis2/client/async/AxisCallback;)V"
>> the class loader (instance of
>> org/apache/geronimo/kernel/classloader/JarFileClassLoader) of the
>> current class, org/xh/nuntius/enterprise/broker/client/AsynchronousAxis2ServiceClient,
>> and the class loader (instance of
>> org/apache/geronimo/kernel/classloader/JarFileClassLoader) for
>> resolved class, org/apache/axis2/client/ServiceClient, have different
>> Class objects for the type org/apache/axiom/om/OMElement used in the
>> signature
>>
>> I'm 100% confused.
>>
>> ServiceClient is defined in axis2-kernel. I cannot defined it
>> explicitly because my @WebService will not be created.
>>
>> When I skip this dependency Geronimo somehow is adding it when doing
>> @WebService stuff and there will be 2 different classes for
>> org/apache/axiom/om/OMElement.
>>
>> Any ideas? Or maybe I should post this to Geronimo dev?
>>
>> best regards
>> Łukasz
>>
>
Re: class loading: LinkageError: loader constraint violation
Posted by Jarek Gawor <jg...@gmail.com>.
Lukasz,
Are you deploying your app on Geronimo Tomcat assembly (which uses
Axis2 as the JAX-WS provider by default)? Does your application
contain any of the axis2 jars or its dependencies (such as Axiom,
etc.)? Also, looks like your application contains some code that
extends Axis2 API. What version of Axis2 was that code built with?
In general, if you are witting a JAX-WS web services, you should stay
with the JAX-WS API in order to keep your application portable. For
example, you can use the @WebServiceRef (that is, Service AP) to
invoke other web services. If you are using proprietary Axis2 API (and
extensions of it) you have to make sure all of the code is built with
the same version of Axis2 as what is in Geronimo.
Jarek
On Mon, Dec 15, 2008 at 2:12 PM, Łukasz Budnik <lu...@gmail.com> wrote:
> Hi all,
>
> I'm exposing some methods of my SLSB as WebServices (@WebService,
> @WebMethod) etc.
>
> All works.
>
> Recently I have added new functionality. I'm invoking external web
> services using Axis2: org.apache.axis2.client.ServiceClient.
>
> I added this dependency:
>
> <dependency>
> <groupId>org.apache.axis2</groupId>
> <artifactId>axis2-kernel</artifactId>
> <version>1.3</version>
> <type>jar</type>
> </dependency>
>
> During deployment of my application (and of course @WebService SLSB)
> there is an error.
>
> [exec] Error: Operation failed: start of
> [exec] org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
> [exec]
> [exec] Unknown start exception
> [exec]
> [exec] Configuration
> org.xh.nuntius/EnterpriseContainer/0.2-dev/car failed
> [exec] to start due to the following reasons:
> [exec]
> [exec] The service
> [exec]
> EJBModule=NuntiusEJB.jar,J2EEApplication=org.xh.nuntius/EnterpriseContainer/0.2-dev/car,StatelessSessionBean=ExecutionLoggerImpl,j2eeType=WS
> Link,name=ExecutionLoggerImpl
> [exec] did not start because
> [exec] org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver cannot be
> [exec] cast to org.apache.axis2.engine.MessageReceiver
>
> Not good...
>
> Hmmm...
>
> If I remove axis2-kernel dependency, application is deployed - which is weird.
>
> But when execution gets to:
>
> serviceClient.sendReceiveNonBlocking(OMXMLUtils.parseString(payload), callback);
>
> I get:
>
> LinkageError: loader constraint violation: when resolving method
> "org.apache.axis2.client.ServiceClient.sendReceiveNonBlocking(Lorg/apache/axiom/om/OMElement;Lorg/apache/axis2/client/async/AxisCallback;)V"
> the class loader (instance of
> org/apache/geronimo/kernel/classloader/JarFileClassLoader) of the
> current class, org/xh/nuntius/enterprise/broker/client/AsynchronousAxis2ServiceClient,
> and the class loader (instance of
> org/apache/geronimo/kernel/classloader/JarFileClassLoader) for
> resolved class, org/apache/axis2/client/ServiceClient, have different
> Class objects for the type org/apache/axiom/om/OMElement used in the
> signature
>
> I'm 100% confused.
>
> ServiceClient is defined in axis2-kernel. I cannot defined it
> explicitly because my @WebService will not be created.
>
> When I skip this dependency Geronimo somehow is adding it when doing
> @WebService stuff and there will be 2 different classes for
> org/apache/axiom/om/OMElement.
>
> Any ideas? Or maybe I should post this to Geronimo dev?
>
> best regards
> Łukasz
>