NullPointerException occurs when verifying conformance item ASM60004
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Key: TUSCANY-2689
URL: https://issues.apache.org/jira/browse/TUSCANY-2689
Project: Tuscany
Issue Type: Test
Components: Java SCA Assembly Model
Affects Versions: Java-SCA-1.3
Reporter: Shu Chao Wan
Here is a question about conformance item ASM60004 "A composite <service/>
element's promote attribute MUST identify one of the component services within
that composite."
In order to verify this item, I create the following composite file in which
the value of promote attribute (NoPromoteComponent) is not any component
service within that composite.
<composite xmlns="http://www.osoa.org/xmlns/sca/1.0";
xmlns:xsd="http://www.w3.org/2001/XMLSchema";
xmlns:assembly-tests="http://assembly-tests";
targetNamespace="http://assembly-tests";
name="Assembly-non-unique-serviename-Composite">
<service name="NoPromoteService" promote="NoPromoteComponent"/>
<component name="BComponent">
<implementation.java
class="org.apache.tuscany.sca.vtest.assembly.composite.impl.BServiceImpl"/>
<property name="someProperty">some b component value</property>
</component>
</composite>
When I running testcase ASM60004 to invoke service NoPromoteService, I got a
NullPointerException exception instead of a expected ServiceRuntimeException.
java.lang.NullPointerException
at
org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.getServiceReference(DefaultSCADomain.java:574)
at
org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.getService(DefaultSCADomain.java:500)
at
org.apache.tuscany.sca.vtest.assembly.composite.ServiceFinder.getService(ServiceFinder.java:52)
at
org.apache.tuscany.sca.vtest.assembly.composite.CompositeTestCase.ASM60004(CompositeTestCase.java:118)
at
org.apache.tuscany.sca.vtest.assembly.composite.CompositeTestCase.main(CompositeTestCase.java:254)
I looked into the file
org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain，and found that in
the getServiceReference method there has the following statement, and the
variable componentContext will be set as null after the statement has been
executed.
componentContext =
(RuntimeComponent)compositeService.getPromotedComponent()).getComponentContext();
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