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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HV" style="color: #3b73af; text-decoration: none">Hibernate Validator</a> / <a href="https://hibernate.atlassian.net/browse/HV-1024" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-1277ea03-4013-4f75-974c-4db2d21d0364" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HV-1024" style="color: #3b73af; text-decoration: none">HV-1024</a>
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="hardy.ferentschik" id="email_hardy.ferentschik" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=hardy.ferentschik" style="color:#6c797f;; color: #3b73af; text-decoration: none">Hardy Ferentschik</a>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <span class="diffcontext">This looks like a bug in IBM JDK. When introspecting a generic parameter of a method using getAnnotatedParameterTypes, IBM JDK returns an instance of {{sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl}} instead of the correct {{sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedParameterizedTypeImpl}}<br />When introspecting generic fields or methods' return values this way, it works correctly!<br /><br />The impact is that Hibernate Validator won't see nor be able to enforce constraints which are declared using type-use annotations on method parameters.<br /><br />This also causes 8 failures in Hibernate Validator test suite when running with IBM JDK 8 - 4 in {{OptionalTypeAnnotationConstraintOnMethodTest}} and 4 in {{OptionalTypeAnnotationConstraintOnConstructorTest}}<br /> <br />Reproducer - simply compile this and run it using IBM JDK - it will fail with a ClassCastException, while it will finish successfully on other JDKs: <br />{noformat}<br />public class TypeUse_Parameter_Reproducer {<br /> public static void main(String[] args) throws NoSuchMethodException {<br /> final Method method = TypeUse_Parameter_Reproducer.class.getMethod("method", List.class);<br /> final AnnotatedType type = method.getAnnotatedParameterTypes()[0];<br /> final AnnotatedParameterizedType annotatedParameterizedType</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br /></span> <span class="diffcontext"> = (AnnotatedParameterizedType)type; // booom!<br /> System.out</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br /></span> <span class="diffcontext"> .println(annotatedParameterizedType.getAnnotatedActualTypeArguments()[0].getAnnotations()[0]);<br /> // the expected output is:<br /> // @TypeUse_Parameter_Reproducer$TypeUseAnnotation(message=hi)<br /> }<br /><br /> public void method(List<@TypeUseAnnotation(message = "hi") String> param) {<br /> }<br /><br /> @Retention(RetentionPolicy.RUNTIME)<br /> @Target({ElementType.TYPE_USE})<br /> public @interface TypeUseAnnotation {<br /> String message() default "blabla";<br /> }<br />}<br />{noformat}<br /><br />Btw. To be able to run the Hibernate Validator test suite using IBM JDK, you also need to get rid of classes which depend on JavaFX and turn off the maven-enforcer-plugin using -Denforcer.skip=true..</span>
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