Ranjit Nethi created CAMEL-9710:
-----------------------------------
Summary: 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
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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