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Bug
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Resolution: Cannot Reproduce
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Major
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None
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None
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None
There is an error that seems to get triggered with the test in https://github.com/resteasy/resteasy/pull/4251/. This produces the following error:
jakarta.ws.rs.ProcessingException: java.lang.IllegalArgumentException: Comparison method violates its general contract! at org.jboss.resteasy.resteasy-client@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readFrom(ClientResponse.java:219) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.specimpl.BuiltResponse.readEntity(BuiltResponse.java:75) at org.jboss.resteasy.resteasy-client@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.client.jaxrs.internal.AbortedResponse.readEntity(AbortedResponse.java:96) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.specimpl.AbstractBuiltResponse.readEntity(AbstractBuiltResponse.java:232) at deployment.5ea90e63-d814-4f78-a081-e7de1b657c4c.war//org.jboss.resteasy.test.cdi.context.InjectedProviderClientTest.contextResolverInjected(InjectedProviderClientTest.java:102) at java.base/java.lang.reflect.Method.invoke(Method.java:569) at deployment.5ea90e63-d814-4f78-a081-e7de1b657c4c.war//org.jboss.arquillian.junit5.ArquillianExtension.interceptTestMethod(ArquillianExtension.java:87) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract! at java.base/java.util.TimSort.mergeHi(TimSort.java:903) at java.base/java.util.TimSort.mergeAt(TimSort.java:520) at java.base/java.util.TimSort.mergeCollapse(TimSort.java:448) at java.base/java.util.TimSort.sort(TimSort.java:245) at java.base/java.util.Arrays.sort(Arrays.java:1307) at java.base/java.util.ArrayList.sort(ArrayList.java:1721) at java.base/java.util.Collections.sort(Collections.java:179) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.core.MediaTypeMap.getPossible(MediaTypeMap.java:561) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.core.providerfactory.ResteasyProviderFactoryImpl.resolveMessageBodyReader(ResteasyProviderFactoryImpl.java:558) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.core.providerfactory.ResteasyProviderFactoryImpl.getClientMessageBodyReader(ResteasyProviderFactoryImpl.java:550) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.core.interception.jaxrs.ClientReaderInterceptorContext.resolveReader(ClientReaderInterceptorContext.java:52) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.core.interception.jaxrs.AbstractReaderInterceptorContext.getReader(AbstractReaderInterceptorContext.java:127) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.core.interception.jaxrs.AbstractReaderInterceptorContext.proceed(AbstractReaderInterceptorContext.java:76) at org.jboss.resteasy.resteasy-crypto@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.security.doseta.DigitalVerificationInterceptor.aroundReadFrom(DigitalVerificationInterceptor.java:32) at org.jboss.resteasy.resteasy-core@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.core.interception.jaxrs.AbstractReaderInterceptorContext.proceed(AbstractReaderInterceptorContext.java:89) at org.jboss.resteasy.resteasy-client@7.0.0.Alpha3-SNAPSHOT//org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readFrom(ClientResponse.java:192) ... 8 more
The sorting code has not changed in 15 years. I'm not too sure why this is being seen only here. A guess would be because the test uses the ClientRequestContext.abortWith() method.
I can see some potential where the comparison breaks the compareTo contract. However, some better analysis needs to be done. The spec reference can be found at https://jakarta.ee/specifications/restful-ws/4.0/jakarta-restful-ws-spec-4.0#message_body_writer. A reader likely has the same issue.
