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  1. Fuse Tooling
  2. FUSETOOLS-1415

Unable to map collections from JSON-generated classes

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: Major Major
    • 7.3.1
    • 7.3.0
    • Data Transformation
    • None
    • Fuse 6.2.1 / JBDSIS 8.0.4

      While doing some testing for FUSETOOLS-1353, I discovered that our JSON to XML mapping may be broken in the camel-dozer component. I changed our XML-to-JSON example to be a JSON-to-XML example and ran into this NPE when I tried matching up lineItems and orderItems in the Dozer configuraiton.

      Stacktrace
      ---------------------------------------------------------------------------------------------------------------------------------------
      java.lang.NullPointerException
      	at org.dozer.util.ReflectionUtils.invoke(ReflectionUtils.java:329)
      	at org.dozer.propertydescriptor.GetterSetterPropertyDescriptor.writeDeepDestinationValue(GetterSetterPropertyDescriptor.java:268)
      	at org.dozer.propertydescriptor.GetterSetterPropertyDescriptor.setPropertyValue(GetterSetterPropertyDescriptor.java:96)
      	at org.dozer.fieldmap.FieldMap.writeDestValue(FieldMap.java:96)
      	at org.dozer.MappingProcessor.writeDestinationValue(MappingProcessor.java:939)
      	at org.dozer.MappingProcessor.mapFromFieldMap(MappingProcessor.java:368)
      	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:79)
      	at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
      	at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:129)
      	at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
      	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:448)
      	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
      	at org.apache.camel.processor.Pipeline.process(Pipeline.java:118)
      	at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)
      	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
      	at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:51)
      	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
      	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:375)
      	at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:343)
      	at org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:233)
      	at org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:343)
      	at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:184)
      	at org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:124)
      	at org.apache.camel.impl.DefaultProducerTemplate.sendBodyAndHeader(DefaultProducerTemplate.java:163)
      	at org.apache.camel.impl.DefaultProducerTemplate.sendBodyAndHeader(DefaultProducerTemplate.java:371)
      	at org.example.TransformationTest2.transform(TransformationTest2.java:40)
      	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.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)
      

      I will attach an example that reproduces the problem

              teiid John Verhaeg (Inactive)
              bfitzpat_rh Brian Fitzpatrick (Inactive)
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                Created:
                Updated:
                Resolved: