Matthieu Marseille created KARAF-3438:
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Summary: ClassCastException on blueprint service reference
interface method call
Key: KARAF-3438
URL: https://issues.apache.org/jira/browse/KARAF-3438
Project: Karaf
Issue Type: Bug
Components: karaf-core, karaf-osgi
Affects Versions: 3.0.2
Environment: Windows 7 64bits, Java jdk 1.7.0_u71, maven 3.2.5, no
admin rights on the platform.
Reporter: Matthieu Marseille
I've tried to apply the Blueprint tutorial with a simple MyHelloService service
implemented as MyHelloServiceImpl and exposed to a client that gets this
service as a reference. Both starting the service and client bundles is clean,
but when the client calls the simple and unique method hello() of the service
at startup (blueprint "init-method") I got :
Caused by: java.lang.ClassCastException:
Proxy8b5c6c04_36f0_4691_ad01_007e338b9cc9 cannot be cast to
com.mycompany.blueprint.app.MyHelloService
at Proxydc340f70_a828_4e83_b591_845608690a75.hello(Unknown Source)
at
com.mycompany.blueprint.client.MyActivator.startUp(MyActivator.java:11)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)[:1.7.0_71]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[:1.7.0_71]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.7.0_71]
at java.lang.reflect.Method.invoke(Method.java:606)[:1.7.0_71]
at
org.apache.aries.blueprint.utils.ReflectionUtils.invoke(ReflectionUtils.java:297)
at
org.apache.aries.blueprint.container.BeanRecipe.invoke(BeanRecipe.java:958)
at
org.apache.aries.blueprint.container.BeanRecipe.runBeanProcInit(BeanRecipe.java:712)
It seems to me that the implementation is registered twice under two proxies
(proxy names are different at exception throw), which causes the error,
apparently.
I have tried the example at home under Windows8 64bits (with admin rights) with
no error.
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