Dariusz Mrówka ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *created* an issue Bean Validation ( https://hibernate.atlassian.net/browse/BVAL?atlOrigin=eyJpIjoiNTMzNzY0ZDY... ) / Bug ( https://hibernate.atlassian.net/browse/BVAL-785?atlOrigin=eyJpIjoiNTMzNzY... ) BVAL-785 ( https://hibernate.atlassian.net/browse/BVAL-785?atlOrigin=eyJpIjoiNTMzNzY... ) @NotNull validator is not triggered for custom Class with ValueExtractor ( https://hibernate.atlassian.net/browse/BVAL-785?atlOrigin=eyJpIjoiNTMzNzY... ) Issue Type: Bug Assignee: Unassigned Components: api Created: 26/Feb/2023 01:49 AM Priority: Major Reporter: Dariusz Mrówka ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) Hi, I have a simple value object class: public class Duration { private int timeInSec; protected Duration() { } public Duration( int timeInSec) { if (timeInSec < 0) throw new IllegalArgumentException( "Duration cannot be negative" ); this.timeInSec = timeInSec; } public Duration( int min, int sec) { this (min * 60 + sec); } public int getTimeInSec() { return timeInSec; } } And properly registered ValueExtractor class: @UnwrapByDefault public class DurationValueExtractor implements ValueExtractor<@ExtractedValue(type = Integer.class) Duration> { @Override public void extractValues(Duration originalValue, ValueReceiver receiver) { receiver.value( null , originalValue != null ? originalValue.getTimeInSec() : null ); } } Then I have a class which is validated: public class SomeClass { @NotNull @Positive private Duration duration; public Duration getDuration() { return duration; } public void setDuration(Duration duration) { this.duration = duration; } } When hibernate validation is done the @Positive constraint is triggered fine for not null value (the value extractor is invoked as it should). But when the field value is null the @NotNull constraint is not triggered and validation passes with no error. It is because org/hibernate/validator/internal/metadata/core/MetaConstraint.java omits any default constraint validation when the custom type has the value extractor and value is null: public boolean validateConstraint(ValidationContext<?> validationContext, ValueContext<?, Object > valueContext) { boolean success = true ; // constraint requiring value extraction to get the value to validate * if ( valueExtractionPath != null ) {* Object valueToValidate = valueContext.getCurrentValidatedValue(); * if ( valueToValidate != null ) {* TypeParameterValueReceiver receiver = new TypeParameterValueReceiver( validationContext, valueContext, valueExtractionPath ); ValueExtractorHelper.extractValues( valueExtractionPath.getValueExtractorDescriptor(), valueToValidate, receiver ); success = receiver.isSuccess(); } } // regular constraint * else {* success = doValidateConstraint( validationContext, valueContext ); } return success; } ( https://hibernate.atlassian.net/browse/BVAL-785#add-comment?atlOrigin=eyJ... ) Add Comment ( https://hibernate.atlassian.net/browse/BVAL-785#add-comment?atlOrigin=eyJ... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100217- sha1:077879e )