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https://issues.apache.org/jira/browse/CXF-6588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14738511#comment-14738511
]
David J. M. Karlsen commented on CXF-6588:
------------------------------------------
I'll try do create a stripped-down project.
Running standalone (junit-test with localtransport)
> NPE in providers.getMessageBodyReader
> -------------------------------------
>
> Key: CXF-6588
> URL: https://issues.apache.org/jira/browse/CXF-6588
> Project: CXF
> Issue Type: Bug
> Components: JAX-RS
> Affects Versions: 3.1.2
> Reporter: David J. M. Karlsen
>
> I have this ParamConverter:
> {code}
> @Provider
> @Component
> public class JacksonParamConverterProvider
> implements ParamConverterProvider
> {
> private final JsonMapperConfigurator jsonMapperConfigurator;
> @Context
> private Providers providers;
> public JacksonParamConverterProvider()
> {
> ObjectMapper objectMapper = new ObjectMapper();
> this.jsonMapperConfigurator =
> new JsonMapperConfigurator( objectMapper, new Annotations[]{
> Annotations.JAXB, Annotations.JACKSON } );
> }
> @Override
> public <T> ParamConverter<T> getConverter( Class<T> rawType, Type
> genericType, Annotation[] annotations )
> {
> MessageBodyReader<T> messageBodyReader =
> providers.getMessageBodyReader( rawType,
>
> genericType,
>
> annotations,
>
> MediaType.APPLICATION_JSON_TYPE );
> if ( messageBodyReader == null || !messageBodyReader.isReadable(
> rawType, genericType, annotations, MediaType.APPLICATION_JSON_TYPE ) ) {
> return null;
> }
> if ( canConvert( rawType ) )
> {
> return new ParamConverter<T>()
> {
> @Override
> public T fromString( String value )
> {
> ObjectReader objectReader = getObjectMapper().readerFor(
> rawType );
> try
> {
> return objectReader.readValue( value );
> }
> catch ( IOException e )
> {
> throw new ProcessingException( e );
> }
> }
> @Override
> public String toString( T value )
> {
> try
> {
> return getObjectMapper().writerFor( rawType
> ).writeValueAsString( value );
> }
> catch ( JsonProcessingException e )
> {
> throw new ProcessingException( e );
> }
> }
> };
> }
> else
> {
> return null;
> }
> }
> private ObjectMapper getObjectMapper()
> {
> return jsonMapperConfigurator.getConfiguredMapper();
> }
> private boolean isNotSimpleType( Class<?> rawType )
> {
> return ! ( rawType.getPackage().getName().startsWith( "java.lang" )
> || ClassUtils.isPrimitiveOrWrapper( rawType ) );
> }
> private boolean canConvert( Class<?> rawType )
> {
> return isNotSimpleType( rawType ) && getObjectMapper().canSerialize(
> rawType );
> }
> {code}
> which will get an NPE when calling getMessageBodyReader:
> {noformat}
> java.lang.NullPointerException: null
> at
> org.apache.cxf.jaxrs.impl.tl.ThreadLocalProviders.getMessageBodyReader(ThreadLocalProviders.java:39)
> ~[cxf-rt-frontend-jaxrs-3.1.2.jar:3.1.2]
> at
> com.edb.fs.tac.jfr.srv.ws.jaxrs.JacksonParamConverterProvider.getConverter(JacksonParamConverterProvider.java:50)
> ~[classes/:na]
> at
> org.apache.cxf.jaxrs.provider.ProviderFactory.createParameterHandler(ProviderFactory.java:256)
> ~[cxf-rt-frontend-jaxrs-3.1.2.jar:3.1.2]
> at
> org.apache.cxf.jaxrs.client.AbstractClient.convertParamValue(AbstractClient.java:742)
> ~[cxf-rt-rs-client-3.1.2.jar:3.1.2]
> at
> org.apache.cxf.jaxrs.client.AbstractClient.header(AbstractClient.java:139)
> ~[cxf-rt-rs-client-3.1.2.jar:3.1.2]
> at org.apache.cxf.jaxrs.client.WebClient.header(WebClient.java:846)
> ~[cxf-rt-rs-client-3.1.2.jar:3.1.2]
> at org.apache.cxf.jaxrs.client.WebClient.header(WebClient.java:83)
> ~[cxf-rt-rs-client-3.1.2.jar:3.1.2]
> at
> com.edb.fs.tac.jfr.srv.ws.AbstractJaxRsSpringWithMocksTest.setHttpHeaders(AbstractJaxRsSpringWithMocksTest.java:109)
> ~[test-classes/:na]
> at
> com.edb.fs.tac.jfr.srv.ws.AbstractJaxRsSpringWithMocksTest.getWebClient(AbstractJaxRsSpringWithMocksTest.java:63)
> ~[test-classes/:na]
> at
> com.edb.fs.tac.jfr.srv.ws.AbstractJaxRsSpringWithMocksTest.getClientProxy(AbstractJaxRsSpringWithMocksTest.java:79)
> ~[test-classes/:na]
> at
> com.edb.fs.tac.jfr.srv.ws.service.customer.CustomerResourceIntegrationTest.testWithComplexQueryObjectWithSubComplexTypes(CustomerResourceIntegrationTest.java:69)
> ~[test-classes/:na]
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> ~[na:1.8.0_60]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> ~[na:1.8.0_60]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[na:1.8.0_60]
> at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_60]
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> ~[junit-4.12.jar:4.12]
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> ~[junit-4.12.jar:4.12]
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> ~[junit-4.12.jar:4.12]
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> ~[junit-4.12.jar:4.12]
> at
> org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
> ~[spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
> at
> org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:85)
> ~[spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
> at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> ~[junit-4.12.jar:4.12]
> at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> [junit-4.12.jar:4.12]
> at
> org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:86)
> [spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> [junit-4.12.jar:4.12]
> at
> org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:241)
> [spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
> at
> org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:87)
> [spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> [junit-4.12.jar:4.12]
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> [junit-4.12.jar:4.12]
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> [junit-4.12.jar:4.12]
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> [junit-4.12.jar:4.12]
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> [junit-4.12.jar:4.12]
> at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> [junit-4.12.jar:4.12]
> at
> org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
> [spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
> at
> org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
> [spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
> at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> [junit-4.12.jar:4.12]
> at
> org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
> [spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
> at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> [junit-4.12.jar:4.12]
> at
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)
> [junit-rt.jar:na]
> at
> com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)
> [junit-rt.jar:na]
> at
> com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
> [junit-rt.jar:na]
> {noformat}
> I am running with localtransport.
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