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From "Claus Ibsen (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CAMEL-9710) Camel Dozer Component - Fails to load custom function due to NPE
Date Wed, 16 Mar 2016 07:12:33 GMT

     [ https://issues.apache.org/jira/browse/CAMEL-9710?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Claus Ibsen resolved CAMEL-9710.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 2.17.0

Thanks for the PR

> Camel Dozer Component - Fails to load custom function due to NPE 
> -----------------------------------------------------------------
>
>                 Key: CAMEL-9710
>                 URL: https://issues.apache.org/jira/browse/CAMEL-9710
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-dozer
>    Affects Versions: 2.16.1
>         Environment: Any
>            Reporter: Ranjit Nethi
>            Assignee: Tomas Rohovsky
>            Priority: Minor
>             Fix For: 2.17.0
>
>
> Camel Dozer component throws NPE, when using custom converter as shown in the following
example. 
>  <mapping>
>     <class-a>org.example.A</class-a>
>     <class-b>org.example.B</class-b>
>     <field custom-converter-id="_customMapping" 
>         custom-converter-param="org.example.CustomMapper,mapCustomer">
>       <a>sourceField</a>
>       <b>destinationField</b>
>     </field>
>   </mapping>
> When the sourceField value is null in the Class A,Fails to load custom function and 
throws RuntimeException caused due to NPE.
> Issue with Code: (
> ------------------------
> Class: CustomMapper
> Method: invokeFunction
> Line# 117
>         Object customObj;
>         Method method = null;
>         try {
>             Class<?> customClass = resolver.resolveClass(className);
>             customObj = customClass.newInstance();
>             // If a specific mapping operation has been supplied use that
>             if (operation != null && prmTypesAndValues != null) {
>                 method = selectMethod(customClass, operation, source, prmTypesAndValues);
>             } else if (operation != null) {
>                 method = customClass.getMethod(operation, source.getClass()); // *****
THIS LINE CAUSES NPE, as source is NULL */
>             } else {
>                 method = selectMethod(customClass, source);
>             }
>         } catch (Exception e) {
>             throw new RuntimeException("Failed to load custom function", e);
>         }
> StackTrace:
> -------------------
> java.lang.RuntimeException: Failed to load custom function
> 	at org.apache.camel.component.dozer.CustomMapper.mapCustom(CustomMapper.java:122)
> 	at org.apache.camel.component.dozer.CustomMapper.convert(CustomMapper.java:46)
> 	at org.dozer.MappingProcessor.mapUsingCustomConverterInstance(MappingProcessor.java:977)
> 	at org.dozer.MappingProcessor.mapFromFieldMap(MappingProcessor.java:355)
> 	at org.dozer.MappingProcessor.mapField(MappingProcessor.java:307)
> 	at org.dozer.MappingProcessor.map(MappingProcessor.java:267)
> 	at org.dozer.MappingProcessor.mapToDestObject(MappingProcessor.java:216)
> 	at org.dozer.MappingProcessor.createByCreationDirectiveAndMap(MappingProcessor.java:196)
> 	at org.dozer.MappingProcessor.mapGeneral(MappingProcessor.java:170)
> 	at org.dozer.MappingProcessor.map(MappingProcessor.java:104)
> 	at org.dozer.MappingProcessor.map(MappingProcessor.java:99)
> 	at org.dozer.DozerBeanMapper.map(DozerBeanMapper.java:120)
> 	at org.apache.camel.component.dozer.DozerProducer.process(DozerProducer.java:82)
> 	at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
> 	at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:141)
> 	at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
> 	at org.apache.camel.processor.interceptor.HandleFaultInterceptor.process(HandleFaultInterceptor.java:42)
> 	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:91)
> 	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:460)
> 	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
> 	at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
> 	at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
> 	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
> 	at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62)
> 	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
> 	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
> 	at org.apache.camel.processor.UnitOfWorkProducer.process(UnitOfWorkProducer.java:68)
> 	at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:412)
> 	at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:380)
> 	at org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:270)
> 	at org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:380)
> 	at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:221)
> 	at org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:124)
> 	at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:137)
> 	at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:144)
> 	at com.ta.shop.integration.routes.doz.DozerJsonTest.testDozerHappyPath(DozerJsonTest.java:23)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> 	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> 	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> 	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> 	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
> 	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
> Caused by: java.lang.NullPointerException
> 	at org.apache.camel.component.dozer.CustomMapper.mapCustom(CustomMapper.java:117)



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