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Posted to dev@tuscany.apache.org by Simon Nash <na...@hursley.ibm.com> on 2007/05/15 23:15:12 UTC
JavaInterfaceIntrospectorExtensionPoint is returning null
I'm getting a NullPointerException when running the new sample client for
implementation-crud.
Here's the command I'm using:
E:\tuscany25\sca\samples\implementation-crud-client>java -classpath E:\tuscany25
\sca\samples\implementation-crud-client\target\classes;E:\tuscany25\sca\samples\
implementation-crud\target\sample-implementation-crud.jar;E:\tuscany25\sca\distr
ibution\target\tuscany-sca-1.0-incubating-SNAPSHOT.dir\tuscany-sca-1.0-incubatin
g-SNAPSHOT\lib\tuscany-sca-manifest.jar crudClient.CRUDClient
Here's the exception:
Exception in thread "main" org.osoa.sca.ServiceRuntimeException: java.lang.NullPointerException
at org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:230)
at org.apache.tuscany.sca.host.embedded.SCADomain.newInstance(SCADomain.java:90)
at crudClient.CRUDClient.main(CRUDClient.java:32)
Caused by: java.lang.NullPointerException
at org.apache.tuscany.sca.interfacedef.java.introspect.ExtensibleJavaInterfaceIntrospector.<init>(ExtensibleJavaInterfaceIntrospector.java:58)
at crud.module.CRUDModuleActivator.start(CRUDModuleActivator.java:68)
at org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime.startModules(ReallySmallRuntime.java:135)
at org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime.start(ReallySmallRuntime.java:92)
at org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.<init>(DefaultSCADomain.java:86)
at org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:212)
... 2 more
and here's the code in CRUDModuleActivator.java that's passing in null to the ExtensibleJavaInterfaceIntrospector:
public void start(ExtensionPointRegistry registry) {
ProxyFactory proxyFactory = registry.getExtensionPoint(ProxyFactory.class);
InterfaceContractMapper mapper = registry.getExtensionPoint(InterfaceContractMapper.class);
// Create the CRUD implementation factory
AssemblyFactory assemblyFactory = new RuntimeAssemblyFactory(mapper, proxyFactory);
JavaInterfaceFactory javaFactory = new DefaultJavaInterfaceFactory();
JavaInterfaceIntrospectorExtensionPoint visitors = registry.getExtensionPoint(JavaInterfaceIntrospectorExtensionPoint.class);
>>>> JavaInterfaceIntrospector introspector = new ExtensibleJavaInterfaceIntrospector(javaFactory, visitors);
The null value in "visitors" is being returned from the call to
registry.getExtensionPoint(JavaInterfaceIntrospectorExtensionPoint.class)
What could cause this value to be null?
Simon
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Re: JavaInterfaceIntrospectorExtensionPoint is returning null
Posted by Simon Nash <na...@hursley.ibm.com>.
Thanks for the quick response. The JavaInterfaceIntrospectorExtensionPoint
class is on the classpath.
I have found the problem. This is caused by TUSCANY-1265. I thought I
had found a workaround to this, but on looking more closely at the
"shaded" tuscany-sca-all jar that I was picking up, the
META-INF/services/org.apache.tuscany.sca.core.ModuleActivator
file has incorrect contents and this is causing some of the required
module activator classes to not be called.
I downloaded the latest test distro from Ant's directory and I have
confirmed that my client code does run OK against that.
Simon
Raymond Feng wrote:
> Hi,
>
> Can you check if tuscany-interface-java-runtime is on the classpath?
> This module contributes the JavaInterfaceIntrospectorExtensionPoint .
>
> Thanks,
> Raymond
>
> ----- Original Message ----- From: "Simon Nash" <na...@hursley.ibm.com>
> To: <tu...@ws.apache.org>
> Sent: Tuesday, May 15, 2007 2:15 PM
> Subject: JavaInterfaceIntrospectorExtensionPoint is returning null
>
>
>> I'm getting a NullPointerException when running the new sample client for
>> implementation-crud.
>>
>> Here's the command I'm using:
>>
>> E:\tuscany25\sca\samples\implementation-crud-client>java -classpath
>> E:\tuscany25
>> \sca\samples\implementation-crud-client\target\classes;E:\tuscany25\sca\samples\
>>
>> implementation-crud\target\sample-implementation-crud.jar;E:\tuscany25\sca\distr
>>
>> ibution\target\tuscany-sca-1.0-incubating-SNAPSHOT.dir\tuscany-sca-1.0-incubatin
>>
>> g-SNAPSHOT\lib\tuscany-sca-manifest.jar crudClient.CRUDClient
>>
>> Here's the exception:
>>
>> Exception in thread "main" org.osoa.sca.ServiceRuntimeException:
>> java.lang.NullPointerException
>> at
>> org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:230)
>>
>> at
>> org.apache.tuscany.sca.host.embedded.SCADomain.newInstance(SCADomain.java:90)
>>
>> at crudClient.CRUDClient.main(CRUDClient.java:32)
>> Caused by: java.lang.NullPointerException
>> at
>> org.apache.tuscany.sca.interfacedef.java.introspect.ExtensibleJavaInterfaceIntrospector.<init>(ExtensibleJavaInterfaceIntrospector.java:58)
>>
>> at
>> crud.module.CRUDModuleActivator.start(CRUDModuleActivator.java:68)
>> at
>> org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime.startModules(ReallySmallRuntime.java:135)
>>
>> at
>> org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime.start(ReallySmallRuntime.java:92)
>>
>> at
>> org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.<init>(DefaultSCADomain.java:86)
>>
>> at
>> org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:212)
>>
>> ... 2 more
>>
>> and here's the code in CRUDModuleActivator.java that's passing in null
>> to the ExtensibleJavaInterfaceIntrospector:
>>
>> public void start(ExtensionPointRegistry registry) {
>>
>> ProxyFactory proxyFactory =
>> registry.getExtensionPoint(ProxyFactory.class);
>> InterfaceContractMapper mapper =
>> registry.getExtensionPoint(InterfaceContractMapper.class);
>> // Create the CRUD implementation factory
>> AssemblyFactory assemblyFactory = new
>> RuntimeAssemblyFactory(mapper, proxyFactory);
>>
>> JavaInterfaceFactory javaFactory = new
>> DefaultJavaInterfaceFactory();
>> JavaInterfaceIntrospectorExtensionPoint visitors =
>> registry.getExtensionPoint(JavaInterfaceIntrospectorExtensionPoint.class);
>>
>> >>>> JavaInterfaceIntrospector introspector = new >>>>
>> ExtensibleJavaInterfaceIntrospector(javaFactory, visitors);
>>
>> The null value in "visitors" is being returned from the call to
>>
>> registry.getExtensionPoint(JavaInterfaceIntrospectorExtensionPoint.class)
>>
>> What could cause this value to be null?
>>
>> Simon
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: tuscany-dev-unsubscribe@ws.apache.org
>> For additional commands, e-mail: tuscany-dev-help@ws.apache.org
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tuscany-dev-unsubscribe@ws.apache.org
> For additional commands, e-mail: tuscany-dev-help@ws.apache.org
>
>
>
--
Simon C Nash IBM Distinguished Engineer
Hursley Park, Winchester, UK nash@hursley.ibm.com
Tel. +44-1962-815156 Fax +44-1962-818999
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Re: JavaInterfaceIntrospectorExtensionPoint is returning null
Posted by Raymond Feng <en...@gmail.com>.
Hi,
Can you check if tuscany-interface-java-runtime is on the classpath? This
module contributes the JavaInterfaceIntrospectorExtensionPoint .
Thanks,
Raymond
----- Original Message -----
From: "Simon Nash" <na...@hursley.ibm.com>
To: <tu...@ws.apache.org>
Sent: Tuesday, May 15, 2007 2:15 PM
Subject: JavaInterfaceIntrospectorExtensionPoint is returning null
> I'm getting a NullPointerException when running the new sample client for
> implementation-crud.
>
> Here's the command I'm using:
>
> E:\tuscany25\sca\samples\implementation-crud-client>java -classpath
> E:\tuscany25
> \sca\samples\implementation-crud-client\target\classes;E:\tuscany25\sca\samples\
> implementation-crud\target\sample-implementation-crud.jar;E:\tuscany25\sca\distr
> ibution\target\tuscany-sca-1.0-incubating-SNAPSHOT.dir\tuscany-sca-1.0-incubatin
> g-SNAPSHOT\lib\tuscany-sca-manifest.jar crudClient.CRUDClient
>
> Here's the exception:
>
> Exception in thread "main" org.osoa.sca.ServiceRuntimeException:
> java.lang.NullPointerException
> at
> org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:230)
> at
> org.apache.tuscany.sca.host.embedded.SCADomain.newInstance(SCADomain.java:90)
> at crudClient.CRUDClient.main(CRUDClient.java:32)
> Caused by: java.lang.NullPointerException
> at
> org.apache.tuscany.sca.interfacedef.java.introspect.ExtensibleJavaInterfaceIntrospector.<init>(ExtensibleJavaInterfaceIntrospector.java:58)
> at
> crud.module.CRUDModuleActivator.start(CRUDModuleActivator.java:68)
> at
> org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime.startModules(ReallySmallRuntime.java:135)
> at
> org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime.start(ReallySmallRuntime.java:92)
> at
> org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.<init>(DefaultSCADomain.java:86)
> at
> org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:212)
> ... 2 more
>
> and here's the code in CRUDModuleActivator.java that's passing in null to
> the ExtensibleJavaInterfaceIntrospector:
>
> public void start(ExtensionPointRegistry registry) {
>
> ProxyFactory proxyFactory =
> registry.getExtensionPoint(ProxyFactory.class);
> InterfaceContractMapper mapper =
> registry.getExtensionPoint(InterfaceContractMapper.class);
> // Create the CRUD implementation factory
> AssemblyFactory assemblyFactory = new
> RuntimeAssemblyFactory(mapper, proxyFactory);
>
> JavaInterfaceFactory javaFactory = new
> DefaultJavaInterfaceFactory();
> JavaInterfaceIntrospectorExtensionPoint visitors =
> registry.getExtensionPoint(JavaInterfaceIntrospectorExtensionPoint.class);
> >>>> JavaInterfaceIntrospector introspector = new
> >>>> ExtensibleJavaInterfaceIntrospector(javaFactory, visitors);
>
> The null value in "visitors" is being returned from the call to
>
> registry.getExtensionPoint(JavaInterfaceIntrospectorExtensionPoint.class)
>
> What could cause this value to be null?
>
> Simon
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tuscany-dev-unsubscribe@ws.apache.org
> For additional commands, e-mail: tuscany-dev-help@ws.apache.org
>
---------------------------------------------------------------------
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