axis2 deployment failure for web services proxied by Spring
-----------------------------------------------------------
Key: AXIS2-3230
URL: https://issues.apache.org/jira/browse/AXIS2-3230
Project: Axis 2.0 (Axis2)
Issue Type: Bug
Components: deployment
Affects Versions: 1.3
Environment: tomcat 5.5.25
jre 1.5.0.12
windows xp
Reporter: edward peng
Priority: Critical
I have a simple webservice proxied by a Spring proxy factory bean.
The spring context is configured as so:
<bean id="simpleWebService"
class="org.springframework.aop.framework.ProxyFactoryBean">
<property
name="proxyInterfaces"><value>com.test.simpleWebService</value></property>
<property name="target"><ref local="simpleWebServiceTarget"/></property>
<property name="interceptorNames">
<list>
<value>methodAuditInterceptor</value>
</list>
</property>
</bean>
<bean id="simpleWebServiceTarget" class="com.test.simpleWebServiceImpl">
The services.xml is:
<service name="SimpleWebService">
<parameter name="ServiceObjectSupplier">
org.apache.axis2.extensions.spring.receivers.SpringServletContextObjectSupplier
</parameter>
<parameter name="SpringBeanName">simpleWebService</parameter>
<messageReceivers>
<messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-only";
class="org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver" />
<messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-out";
class="org.apache.axis2.rpc.receivers.RPCMessageReceiver" />
</messageReceivers>
</service>
At runtime, Spring generates a JDK proxy around the simple web service. When
the axis2 service deployer tries to deploy this webservice it generates the
following stacktrace:
org.apache.axis2.deployment.DeploymentException: The following error occurred
during schema generation: Unable to load bytecode for class $Proxy4
at
org.apache.axis2.deployment.repository.util.ArchiveReader.processServiceGroup(ArchiveReader.java:144)
at
org.apache.axis2.deployment.ServiceDeployer.deploy(ServiceDeployer.java:78)
at
org.apache.axis2.deployment.repository.util.DeploymentFileData.deploy(DeploymentFileData.java:137)
at
org.apache.axis2.deployment.DeploymentEngine.doDeploy(DeploymentEngine.java:571)
at
org.apache.axis2.deployment.repository.util.WSInfoList.update(WSInfoList.java:141)
at
org.apache.axis2.deployment.RepositoryListener.update(RepositoryListener.java:318)
at
org.apache.axis2.deployment.RepositoryListener.checkServices(RepositoryListener.java:220)
at
org.apache.axis2.deployment.DeploymentEngine.loadServices(DeploymentEngine.java:118)
at
org.apache.axis2.deployment.WarBasedAxisConfigurator.loadServices(WarBasedAxisConfigurator.java:272)
at
org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:78)
at
org.apache.axis2.transport.http.AxisServlet.initConfigContext(AxisServlet.java:500)
at
org.apache.axis2.transport.http.AxisServlet.init(AxisServlet.java:420)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4230)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:448)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: org.apache.axis2.deployment.DeploymentException: The following error
occurred during schema generation: Unable to load bytecode for class $Proxy4
at
org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:389)
at
org.apache.axis2.deployment.repository.util.ArchiveReader.buildServiceGroup(ArchiveReader.java:95)
at
org.apache.axis2.deployment.repository.util.ArchiveReader.processServiceGroup(ArchiveReader.java:137)
... 28 more
Caused by: org.apache.axis2.deployment.DeploymentException: The following error
occurred during schema generation: Unable to load bytecode for class $Proxy4
at
org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:354)
... 30 more
Caused by: java.io.IOException: Unable to load bytecode for class $Proxy4
at
org.apache.axis2.description.java2wsdl.bytecode.ClassReader.getBytes(ClassReader.java:84)
at
org.apache.axis2.description.java2wsdl.bytecode.ParamReader.<init>(ParamReader.java:57)
at
org.apache.axis2.description.java2wsdl.bytecode.ChainedParamReader.<init>(ChainedParamReader.java:52)
at
org.apache.axis2.description.java2wsdl.bytecode.MethodTable.<init>(MethodTable.java:30)
at
org.apache.axis2.description.java2wsdl.DefaultSchemaGenerator.<init>(DefaultSchemaGenerator.java:116)
at
org.apache.axis2.deployment.util.Utils.fillAxisService(Utils.java:340)
at
org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:347)
... 30 more
>From the stacktrace it appears that java2wsdl requires the bytecode but
>because the proxy is generated in memory it doesn't exist.
I have though about a couple of workarounds including:
1) Using AspectJ to weave at compile time (starting to make the application
more complex and I am not sure if this will work)
2) Provide a pregenerated WSDL (I can create the WSDL myself) so that I can
bypass this step during deployment? Is this possible?
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