Invoking a component reference using component context API fails with NPE
-------------------------------------------------------------------------
Key: TUSCANY-3447
URL: https://issues.apache.org/jira/browse/TUSCANY-3447
Project: Tuscany
Issue Type: Bug
Components: Java SCA Java Implementation Extension
Affects Versions: Java-SCA-1.6
Reporter: Vamsavardhana Reddy
Fix For: Java-SCA-1.6
Invoking an SCA reference through component context API is resulting in
NullPointerException. The code that is hitting this exception is running as
part of the Tuscany Plugin for Geronimo. Stack trace is given below:
java.lang.NullPointerException
org.apache.tuscany.sca.implementation.java.invocation.JavaComponentContextProvider.createInstanceWrapper(JavaComponentContextProvider.java:104)
org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationProvider.createInstanceWrapper(JavaImplementationProvider.java:190)
org.apache.tuscany.sca.core.scope.AbstractScopeContainer.createInstanceWrapper(AbstractScopeContainer.java:65)
org.apache.tuscany.sca.core.scope.StatelessScopeContainer.getWrapper(StatelessScopeContainer.java:38)
org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:103)
org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:60)
org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61)
org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:60)
org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:349)
org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:193)
$Proxy37.sayHello(Unknown Source)
sample.HelloworldServlet.service(HelloworldServlet.java:128)
javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
Looks like this is a regression introduced by rev 833606 which has has the
commit message "Improve performance by indexing invocation chains by operation
and caching Java instanceFactory". The code that got changed in
JavaComponentContextProvider.createInstanceWrapper() method is from
return instanceFactoryProvider.createFactory().newInstance();
to
return instanceFactory.newInstance();
The in the scenario in which the exception is occurring, instanceFactory has
not been initialized by the time the createInstanceWrapper() method is called.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
