Hello
No I have the same error
Here is the log I have.
*java.lang.NullPointerException
at
calculator.CalculatorServiceImpl.conversionEnEuro(CalculatorServiceImpl.java:43)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:132)
at
org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:112)
at
org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61)
at
org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:112)
at
org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:287)
at
org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
at $Proxy6.conversionEnEuro(Unknown Source)
at client.Client.main(Client.java:45)
*
2008/12/10 Scott Kurz <[EMAIL PROTECTED]>
> Fahim,
>
> So I'd expect you're getting a different error now after switching the SCDL
> to:
> * <reference name="conversionService"
> *
> Is that correct? What's the new error?
>
> Scott
>
>
> On Tue, Dec 9, 2008 at 10:53 AM, fahim salim <[EMAIL PROTECTED]> wrote:
>
>> Hello Scott
>>
>> Yes it could have been that
>> I have made the modification in the SCDL (Calcul.composite) and I have
>> replaced the upper case by lowercase 'c' but it doesn't work ...
>>
>>
>>
>> 2008/12/9 Scott Kurz <[EMAIL PROTECTED]>
>>
>> Fahim,
>>>
>>> I wonder if the problem is the case of your reference in SCDL.
>>>
>>> You have ..
>>> * <reference name="ConversionService"
>>>
>>> *But in the Java impl (CalculatorServiceImpl ) it looks like
>>> the reference name is "conversionService" (lowercase 'c').
>>>
>>> Maybe try that....
>>>
>>> Scott
>>>
>>>
>>>
>>>
>>> On Tue, Dec 9, 2008 at 7:41 AM, fahim salim <[EMAIL PROTECTED]> wrote:
>>>
>>>> Hello All
>>>>
>>>> What I'd like to do is to have two components implemented as composite
>>>> (like in simple-bigbank)
>>>> CalculatorServiceComponent is implemented by Calculator.composite and
>>>> ConversionServiceComponent is implemented by Converter.composite
>>>> ConversionService is a reference for CalculatorServiceComponent.
>>>>
>>>> Here is the composite file for this configuration
>>>>
>>>> *<?xml version="1.0" encoding="ISO-8859-15"?>
>>>> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0";
>>>> targetNamespace="http://calcul";
>>>> xmlns:ca="http://calculator";
>>>> xmlns:co="http://converter";
>>>> name="Calcul">
>>>>
>>>> <component name="CalculatorServiceComponent">
>>>> <implementation.composite name="ca:Calculator"/>
>>>> <reference name="ConversionService"
>>>> target="ConversionServiceComponent">
>>>> <binding.sca/>
>>>> </reference>
>>>> </component>
>>>>
>>>> <component name="ConversionServiceComponent">
>>>> <implementation.composite name="co:Converter"/>
>>>> </component>
>>>>
>>>> </composite>*
>>>>
>>>> ConversionService offers one method which is *conversionEnEuro()*
>>>>
>>>> *public interface ConversionService {
>>>> public double conversionEnEuro(double value);
>>>> }*
>>>>
>>>>
>>>>
>>>> When I run the application I have the following stack trace error but I
>>>> can't understand what is going wrong. It seems that the proxy which is
>>>> returned doesn't know how to invoke the method of ConversionService but why
>>>> ?
>>>>
>>>> class $Proxy6
>>>> Caught Exception: null
>>>> java.lang.NullPointerException
>>>> at
>>>> calculator.CalculatorServiceImpl.conversionEnEuro(CalculatorServiceImpl.java:43)
>>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>> at
>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>> at
>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>> at java.lang.reflect.Method.invoke(Method.java:585)
>>>> at
>>>> org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:132)
>>>> at
>>>> org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:112)
>>>> at
>>>> org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61)
>>>> at
>>>> org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:112)
>>>> at
>>>> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:287)
>>>> at
>>>> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>>>> at $Proxy6.conversionEnEuro(Unknown Source)
>>>> at client.Client.main(Client.java:45)
>>>>
>>>> I have enclosed all the files
>>>>
>>>> Thanks for your help
>>>>
>>>> Fahim
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>
>
