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<td class="page-title-pattern-first-line " style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HV?atlOrigin=eyJpIjoiMDY4NzIxM2U0NTdhNGQ4NzhhNzY5YjhjNTI4Yjk1ZDIiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Hibernate Validator</a> / <a href="https://hibernate.atlassian.net/browse/HV-1796?atlOrigin=eyJpIjoiMDY4NzIxM2U0NTdhNGQ4NzhhNzY5YjhjNTI4Yjk1ZDIiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-e5d4ace5-35ee-4b4b-b61b-f43b411e33d9" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HV-1796?atlOrigin=eyJpIjoiMDY4NzIxM2U0NTdhNGQ4NzhhNzY5YjhjNTI4Yjk1ZDIiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">HV-1796</a> </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="frdricchuong" style="color:#6c797f;; color: #3b73af; text-decoration: none" id="email_frdricchuong" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A4ca290af-dd15-4cd2-ba2d-7a48f3908c1f"> Frédéric Chuong </a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <span class="diffcontext">h1. Context<br><br>* Method constraints validation<br>* Kotlin<br>** Presence of extension function on parameterized type within the validated object<br><br>h1. Problem<br><br>Given the following code making use of method constraint validation<br><br>*SimpleFooService.kt*<br><br>{noformat}package foo<br><br>import org.slf4j.LoggerFactory<br>import javax.validation.Validation<br>import javax.validation.constraints.NotEmpty<br><br>class SimpleFooService {<br> fun methodName(@NotEmpty ignored: String) {<br> // no-op<br> }<br><br> private fun List<String>.someExtensionFunction(extensionFunctionArg: Int) = Unit<br>}<br><br>fun main() {<br> val validator = Validation.buildDefaultValidatorFactory().validator<br> val executableValidator = validator.forExecutables()<br> try {<br> executableValidator.validateParameters(<br> SimpleFooService(),<br> SimpleFooService::class.java.getDeclaredMethod(SimpleFooService::methodName.name, String::class.java),<br> arrayOf("Some value")<br> )<br> } catch (e: Exception) {<br> log.error("Error", e)<br> }<br>}<br><br>val log = LoggerFactory.getLogger(SimpleFooService::class.java){noformat}<br><br>Attempting to execute the code leads to {{ArrayIndexOutOfBoundsException}} and the given arguments not being validated:<br><br>{noformat}2020-08-04 16:14:41,937 [main] DEBUG - org.jboss.logging - Logging Provider: org.jboss.logging.Slf4jLoggerProvider<br>2020-08-04 16:14:41,949 [main] INFO - org.hibernate.validator.internal.util.Version - HV000001: Hibernate Validator 6.1.5.Final<br>2020-08-04 16:14:41,975 [main] DEBUG - org.hibernate.validator.internal.xml.config.ValidationXmlParser - Trying to load META-INF/validation.xml for XML based Validator configuration.<br>2020-08-04 16:14:41,977 [main] DEBUG - org.hibernate.validator.internal.xml.config.ResourceLoaderHelper - Trying to load META-INF/validation.xml via TCCL<br>2020-08-04 16:14:41,979 [main] DEBUG - org.hibernate.validator.internal.xml.config.ResourceLoaderHelper - Trying to load META-INF/validation.xml via Hibernate Validator's class loader<br>2020-08-04 16:14:41,980 [main] DEBUG - org.hibernate.validator.internal.xml.config.ValidationXmlParser - No META-INF/validation.xml found. Using annotation based configuration only.<br>2020-08-04 16:14:41,986 [main] DEBUG - org.hibernate.validator.internal.engine.resolver.TraversableResolvers - Cannot find javax.persistence.Persistence on classpath. Assuming non JPA 2 environment. All properties will per default be traversable.<br>2020-08-04 16:14:42,083 [main] DEBUG - org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator - Loaded expression factory via original TCCL<br>2020-08-04 16:14:42,434 [main] DEBUG - org.hibernate.validator.internal.engine.ValidatorFactoryConfigurationHelper - HV000252: Using org.hibernate.validator.internal.engine.DefaultPropertyNodeNameProvider as property node name provider.<br>2020-08-04 16:14:42,443 [main] DEBUG - org.hibernate.validator.internal.engine.ValidatorFactoryConfigurationHelper - HV000234: Using org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator as ValidatorFactory-scoped message interpolator.<br>2020-08-04 16:14:42,443 [main] DEBUG - org.hibernate.validator.internal.engine.ValidatorFactoryConfigurationHelper - HV000234: Using org.hibernate.validator.internal.engine.resolver.TraverseAllTraversableResolver as ValidatorFactory-scoped traversable resolver.<br>2020-08-04 16:14:42,443 [main] DEBUG - org.hibernate.validator.internal.engine.ValidatorFactoryConfigurationHelper - HV000234: Using org.hibernate.validator.internal.util.ExecutableParameterNameProvider as ValidatorFactory-scoped parameter name provider.<br>2020-08-04 16:14:42,444 [main] DEBUG - org.hibernate.validator.internal.engine.ValidatorFactoryConfigurationHelper - HV000234: Using org.hibernate.validator.internal.engine.DefaultClockProvider as ValidatorFactory-scoped clock provider.<br>2020-08-04 16:14:42,444 [main] DEBUG - org.hibernate.validator.internal.engine.ValidatorFactoryConfigurationHelper - HV000234: Using org.hibernate.validator.internal.engine.scripting.DefaultScriptEvaluatorFactory as ValidatorFactory-scoped script evaluator factory.<br>2020-08-04 16:14:42,541 [main] ERROR - foo.SimpleFooService - Error<br>java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.getTypeParametersCascadingMetaDataForParameterizedType(AnnotationMetaDataProvider.java:678) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.getTypeParametersCascadingMetadata(AnnotationMetaDataProvider.java:660) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.findCascadingMetaData(AnnotationMetaDataProvider.java:627) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.getParameterMetaData(AnnotationMetaDataProvider.java:432) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.findExecutableMetaData(AnnotationMetaDataProvider.java:308) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.getMetaData(AnnotationMetaDataProvider.java:292) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.getMethodMetaData(AnnotationMetaDataProvider.java:279) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.retrieveBeanConfiguration(AnnotationMetaDataProvider.java:130) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider.getBeanConfiguration(AnnotationMetaDataProvider.java:120) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.BeanMetaDataManagerImpl.getBeanConfigurationForHierarchy(BeanMetaDataManagerImpl.java:234) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.BeanMetaDataManagerImpl.createBeanMetaData(BeanMetaDataManagerImpl.java:201) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.metadata.BeanMetaDataManagerImpl.getBeanMetaData(BeanMetaDataManagerImpl.java:165) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validateParameters(ValidatorImpl.java:267) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validateParameters(ValidatorImpl.java:235) ~[hibernate-validator-6.1.5.Final.jar:6.1.5.Final]<br> at foo.FooServiceKt.main(FooService.kt:19) ~[main/:na]<br> at foo.FooServiceKt.main(FooService.kt) ~[main/:na]{noformat}<br><br>h1. Preliminary analysis<br><br>Debugging reveals that {{org.hibernate.validator.internal.metadata.provider.AnnotationMetaDataProvider#findExecutableMetaData}} [is retrieving|https://github.com/hibernate/hibernate-validator/blob/6.1.5.Final/engine/src/main/java/org/hibernate/validator/internal/metadata/provider/AnnotationMetaDataProvider.java#L307]</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> a</span> <span class="diffaddedchars" style="background-color:#ddfade;"> an</span> <span class="diffcontext"> incorrect {{JavaBeanExecutable}} result from {{JavaBeanHelper}} when processing the {{private final void foo.SimpleFooService.someExtensionFunction(java.util.List,int)}} method:<br><br>!image-2020-08-05-00-24-18-321.png|width=200,height=183!<br><br> <br><br>(!) The {{extensionFunctionArg}} argument has the {{List<String>}} type associated to it, instead of {{int}}<br><br>That inconsistency causes {{AnnotationMetaDataProvider.getTypeParametersCascadingMetaDataForParameterizedType}} to fail.<br><br>h1. Workaround<br><br>Workaround is to remove all extension functions on parameterized receiver from the validated class (which may not be desirable).<br><br>h1. Build setup<br><br>*build.gradle.kts*<br><br>{noformat}import org.jetbrains.kotlin.gradle.dsl.KotlinCompile<br>import org.jetbrains.kotlin.gradle.dsl.KotlinJvmOptions<br><br>plugins {<br> kotlin("jvm") version "1.3.72"<br>}<br><br>group = "org.example"<br>version = "1.0-SNAPSHOT"<br><br>repositories {<br> mavenCentral()<br>}<br><br>dependencies {<br> implementation(kotlin("stdlib"))<br> implementation(platform("org.springframework.boot:spring-boot-dependencies:2.3.2.RELEASE"))<br> implementation("org.slf4j:slf4j-api")<br> implementation("ch.qos.logback:logback-classic")<br> implementation("org.hibernate.validator:hibernate-validator")<br> implementation("org.glassfish:jakarta.el")<br>}<br><br>tasks {<br> "wrapper"(Wrapper::class) {<br> gradleVersion = "6.5.1"<br> distributionType = Wrapper.DistributionType.ALL<br> }<br> withType<KotlinCompile<KotlinJvmOptions>>().configureEach {<br> kotlinOptions {<br> jvmTarget = "11"<br> javaParameters = true<br> }<br> }<br>}{noformat}</span> </td>
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