There is an issue in the SDO OSGi enablement. SDOUtil references
commonj.sdo.impl.HelperProvider.INSTANCE which is instantiated in a static
block. It tries to discover the implementation class using either a system
property named "commonj.sdo.impl.HelperProvider" or a configuration file as
META-INF/services/commonj.sdo.impl.HelperProvider. The classloading won't
work with OSGi.
There is a bundle activator (org.apache.tuscany.sdo.osgi.SdoBundleActivator)
for tuscany-sdo-impl bundle which tries to set up the instance as follows:
public void start(BundleContext bundleContext) throws Exception {
HelperProvider.setDefaultInstance(this.getClass().getClassLoader());
}
Can you try to start the tuscany-sdo-impl bundle first before you use any
SDO APIs?
Thanks,
Raymond
--------------------------------------------------
From: "Claus Straube" <[email protected]>
Sent: Wednesday, December 09, 2009 5:53 AM
To: <[email protected]>
Subject: Nullpointer Exception deploying Tuscany SDO in Spring DM Server
Hi all,
we're trying to deploy apache tuscany sdo (tuscany-sdo-lib-1.1.1.jar) in
spring dm server (2.0.0.M6 / OpenJDK 1.6.0_0). This works without
exception and the state of the bundle is active. But we can't see any
exported interfaces (what we can do with other tuscany bundles). So far no
problem, but if we call the bundle we get a nullpointer exception setting
the helper context.
This is the implementation:
public class Foo {
private HelperContext scope;
public HelperContext getScope() {
if(this.scope == null) {
this.scope = SDOUtil.createHelperContext();
}
return this.scope;
}
}
This is our stacktrace:
[2009-12-09 11:33:56.256] ltMessageListenerContainer-1
org.springframework.jms.listener.DefaultMessageListenerContainer
Execution of JMS message listener failed, and no ErrorHandler has been
set. java.lang.ExceptionInInitializerError
at
com.catify.core.sdo.internal.services.impl.SdoServiceImpl.getScope(SdoServiceImpl.java:109)
at
com.catify.core.sdo.internal.services.impl.SdoServiceImpl.registerXmlSchema(SdoServiceImpl.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at
org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:58)
at
org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:62)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.osgi.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:59)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy226.registerXmlSchema(Unknown Source)
at
com.catify.test.adapter.ws.internal.WebserviceAdapterCall.call(WebserviceAdapterCall.java:46)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at
org.apache.camel.component.bean.MethodInfo.invoke(MethodInfo.java:193)
at
org.apache.camel.component.bean.MethodInfo$1.proceed(MethodInfo.java:115)
at
org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:122)
at
org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:61)
at
org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:61)
at
org.apache.camel.processor.RedeliveryErrorHandler.processExchange(RedeliveryErrorHandler.java:186)
at
org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:155)
at
org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:88)
at
org.apache.camel.processor.DefaultErrorHandler.process(DefaultErrorHandler.java:49)
at
org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:148)
at
org.apache.camel.processor.UnitOfWorkProcessor.processNext(UnitOfWorkProcessor.java:54)
at
org.apache.camel.processor.DelegateProcessor.process(DelegateProcessor.java:48)
at
org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:83)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:559)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:498)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:467)
at
org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:323)
at
org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:261)
at
org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:976)
at
org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:968)
at
org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:870)
at java.lang.Thread.run(Thread.java:636)
Caused by: java.lang.NullPointerException
at org.apache.tuscany.sdo.api.SDOUtil.<clinit>(SDOUtil.java:48)
... 47 common frames omitted
Any help is welcome. Thanks in advance.
Best regards - Claus
--
claus straube
