NullPointerException if a property is not configured
----------------------------------------------------
Key: TUSCANY-220
URL: http://issues.apache.org/jira/browse/TUSCANY-220
Project: Tuscany
Type: Bug
Components: Java SCA POJO Container
Reporter: Jean-Sebastien Delfino
By default the application developer is not required to configure all the
properties of a component. If a property is not configured, the runtime throws
a NullPointerException. Ths is not correct, no exception should be thrown.
To reproduce the problem, just comment out the property configuration element
in helloworldmc/sca.module, as follows:
<component name="HelloWorldServiceComponent">
<implementation.java
class="org.apache.tuscany.samples.helloworldmc.HelloWorldServiceComponentImpl"/>
<references>
<v:greetingPrefix>GreetingPrefixComponent</v:greetingPrefix>
<v:greetingSuffix>GreetingSuffixComponent</v:greetingSuffix>
</references>
<properties>
<!--
<v:greetingMiddle>SCA</v:greetingMiddle>
-->
</properties>
</component>
Here's the exception you'll get when you run the HelloWorldClient.
Exception in thread "main" java.lang.NullPointerException
at
org.apache.tuscany.container.java.builder.JavaContextFactoryBuilder.createPropertyInjector(JavaContextFactoryBuilder.java:215)
at
org.apache.tuscany.container.java.builder.JavaContextFactoryBuilder.build(JavaContextFactoryBuilder.java:172)
at
org.apache.tuscany.core.builder.impl.AssemblyVisitorImpl.visit(AssemblyVisitorImpl.java:52)
at
org.apache.tuscany.model.assembly.impl.AssemblyObjectImpl.accept(AssemblyObjectImpl.java:39)
at
org.apache.tuscany.model.assembly.impl.ExtensibleImpl.accept(ExtensibleImpl.java:66)
at
org.apache.tuscany.model.assembly.impl.ComponentImpl.accept(ComponentImpl.java:201)
at
org.apache.tuscany.model.assembly.impl.AssemblyObjectImpl.accept(AssemblyObjectImpl.java:51)
at
org.apache.tuscany.model.assembly.impl.CompositeImpl.accept(CompositeImpl.java:333)
at
org.apache.tuscany.model.assembly.impl.ModuleImpl.accept(ModuleImpl.java:96)
at
org.apache.tuscany.model.assembly.impl.ComponentImpl.accept(ComponentImpl.java:211)
at
org.apache.tuscany.core.builder.impl.AssemblyVisitorImpl.start(AssemblyVisitorImpl.java:44)
at
org.apache.tuscany.core.runtime.RuntimeContextImpl.build(RuntimeContextImpl.java:161)
at
org.apache.tuscany.core.context.impl.AbstractCompositeContext.registerModelObject(AbstractCompositeContext.java:275)
at
org.apache.tuscany.core.client.BootstrapHelper.registerModule(BootstrapHelper.java:133)
at
org.apache.tuscany.core.client.TuscanyRuntime.<init>(TuscanyRuntime.java:104)
at
org.apache.tuscany.core.client.TuscanyRuntime.<init>(TuscanyRuntime.java:67)
at
org.apache.tuscany.samples.helloworldmc.HelloWorldClient.main(HelloWorldClient.java:33)
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