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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=eyJpIjoiNDcxOTc3MDRmNjQ1NDUzMWI4ZmM5NTFiOGY3MDAzMWYiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Hibernate Validator</a> / <a href="https://hibernate.atlassian.net/browse/HV-1684?atlOrigin=eyJpIjoiNDcxOTc3MDRmNjQ1NDUzMWI4ZmM5NTFiOGY3MDAzMWYiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-2a7e00e8-1c95-466f-be14-39b4951707f4" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HV-1684?atlOrigin=eyJpIjoiNDcxOTc3MDRmNjQ1NDUzMWI4ZmM5NTFiOGY3MDAzMWYiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">HV-1684</a> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<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="867813857" id="email_867813857" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=867813857" style="color:#6c797f;; color: #3b73af; text-decoration: none">tp123</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">when the process working for two days，StackOverflowError always happen,the stacktrace is below:<br><br></span> <span class="diffaddedchars" style="background-color:#ddfade;"><br>{code:</span> <span class="diffcontext">java</span> <span class="diffaddedchars" style="background-color:#ddfade;">}<br>java</span> <span class="diffcontext">.lang.StackOverflowError<br> at java.util.Collections$UnmodifiableCollection.isEmpty(Collections.java:1031)<br> at java.util.Collections$UnmodifiableCollection.isEmpty(Collections.java:1031)<br> ......<br> at java.util.Collections$UnmodifiableCollection.isEmpty(Collections.java:1031)<br> at java.util.Collections$UnmodifiableCollection.isEmpty(Collections.java:1031)<br> at java.util.Collections$UnmodifiableCollection.isEmpty(Collections.java:1031)<br> at java.util.Collections$UnmodifiableCollection.isEmpty(Collections.java:1031)<br> at java.util.Collections$UnmodifiableCollection.isEmpty(Collections.java:1031)<br> at java.util.Collections$UnmodifiableCollection.isEmpty(Collections.java:1031)<br> at org.hibernate.validator.internal.engine.valueextraction.ValueExtractorResolver.getRuntimeCompliantValueExtractors(ValueExtractorResolver.java:316)<br> at org.hibernate.validator.internal.engine.valueextraction.ValueExtractorResolver.getValueExtractorCandidatesForContainerDetectionOfGlobalCascadedValidation(ValueExtractorResolver.java:177)<br> at org.hibernate.validator.internal.metadata.aggregated.CascadingMetaDataBuilder.build(CascadingMetaDataBuilder.java:227)<br> at org.hibernate.validator.internal.metadata.aggregated.FieldCascadable$Builder.build(FieldCascadable.java:83)<br> at org.hibernate.validator.internal.metadata.aggregated.FieldCascadable$Builder.build(FieldCascadable.java:64)<br> at org.hibernate.validator.internal.metadata.aggregated.PropertyMetaData$Builder.lambda$build$1(PropertyMetaData.java:347)<br> at org.hibernate.validator.internal.metadata.aggregated.PropertyMetaData$Builder$$Lambda$62/1651906449.apply(Unknown Source)<br> at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)<br> at java.util.HashMap$ValueSpliterator.forEachRemaining(HashMap.java:1625)<br> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)<br> at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)<br> at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)<br> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)<br> at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)<br> at org.hibernate.validator.internal.metadata.aggregated.PropertyMetaData$Builder.build(PropertyMetaData.java:348)<br> at org.hibernate.validator.internal.metadata.aggregated.PropertyMetaData$Builder.build(PropertyMetaData.java:151)<br> at org.hibernate.validator.internal.metadata.aggregated.BeanMetaDataImpl$BuilderDelegate.build(BeanMetaDataImpl.java:784)<br> at org.hibernate.validator.internal.metadata.aggregated.BeanMetaDataImpl$BeanMetaDataBuilder.build(BeanMetaDataImpl.java:648)<br> at org.hibernate.validator.internal.metadata.BeanMetaDataManager.createBeanMetaData(BeanMetaDataManager.java:192)<br> at org.hibernate.validator.internal.metadata.BeanMetaDataManager.lambda$getBeanMetaData$0(BeanMetaDataManager.java:160)<br> at org.hibernate.validator.internal.metadata.BeanMetaDataManager$$Lambda$53/253243426.apply(Unknown Source)<br> at java.util.concurrent.ConcurrentMap.computeIfAbsent(ConcurrentMap.java:324)<br> at org.hibernate.validator.internal.metadata.BeanMetaDataManager.getBeanMetaData(BeanMetaDataManager.java:159)<br> at org.hibernate.validator.internal.engine.ValidationContext$ValidationContextBuilder.forValidate(ValidationContext.java:566)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validate(ValidatorImpl.java:155)<br> at com.test.ValidateParameters.validateObject(ValidateParameters.java:31)<br></span> <span class="diffaddedchars" style="background-color:#ddfade;">{code}</span> <span class="diffcontext"><br></span> <span class="diffaddedchars" style="background-color:#ddfade;"><br><br></span> <span class="diffcontext">The environment is :x86_64 GNU/Linux JRE: 1.8.0_181 hibernate-validator:6.0.13Final<br>And our code is easy,just like this,first get validator in a static block,and then validate paramter for every request param:<br><br><br>{code:java}<br>//get validator<br>Validator validator = Validation.byDefaultProvider()<br>.providerResolver(new OsgiValidationProviderResolver())<br>.configure().messageInterpolator(resouce)<br>.buildValidatorFactory().getValidator();<br>//validate parameter,this parameter is an Object,(we think it contains map attribute may have the problem).<br>Set<ConstraintViolation> validateResultSets = validator.validate(parameter);<br>{code}<br><br><br>Our team have view the code，we doubt the following code(ValueExtractorResolver.java, getRuntimeCompliantValueExtractors) may has some problem in Multithreading，why it always happens for a long time？<br>When in thread one,the attribute "valueExtractorDescriptors" is not empty ,and it's type is java.util.map,then it will change to ImmutableSet,then a second thread run "valueExtractorDescriptors.isEmpty()",it will goes to the UnmodifiableCollection.isEmpty,this will recursion,at last it will throw SO Exception.<br><br><br>{code:java}<br>private Set<ValueExtractorDescriptor> getRuntimeCompliantValueExtractors(Class<?> runtimeType, Set<ValueExtractorDescriptor> potentialValueExtractorDescriptors) {<br> if ( nonContainerTypes.contains( runtimeType ) ) {<br> return Collections.emptySet();<br> }<br> <br> Set<ValueExtractorDescriptor> valueExtractorDescriptors = possibleValueExtractorsByRuntimeType.get( runtimeType );<br> if ( valueExtractorDescriptors == null ) {<br> //otherwise we just look for maximally specific extractors for the runtime type<br> Set<ValueExtractorDescriptor> possibleValueExtractors = potentialValueExtractorDescriptors<br> .stream()<br> .filter( e -> TypeHelper.isAssignable( e.getContainerType(), runtimeType ) )<br> .collect( Collectors.toSet() );<br><br> valueExtractorDescriptors = getMaximallySpecificValueExtractors( possibleValueExtractors );<br> }<br><br> if ( valueExtractorDescriptors.isEmpty() ) {<br> nonContainerTypes.put( runtimeType, NON_CONTAINER_VALUE );<br> }<br> else {<br> Set<ValueExtractorDescriptor> extractorDescriptorsToCache = CollectionHelper.toImmutableSet( valueExtractorDescriptors );<br> possibleValueExtractorsByRuntimeType.put( runtimeType, extractorDescriptorsToCache );<br> return extractorDescriptorsToCache;<br> }<br><br> return valueExtractorDescriptors;<br> }<br>{code}<br></span> </td>
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