hibernate/hibernate-orm · error · SemanticException

Missing constructor for type '${typeName}'

Error message

Missing constructor for type '${typeName}'

What it means

Error "Missing constructor for type '${typeName}'" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/query/hql/internal/SemanticQueryBuilder.java:1524

				(SqmPluralValuedSimplePath<?>) pluralAttributePath,
				collectionFunctionNature( firstNode )
		);
	}

	@Override
	public SqmDynamicInstantiation<?> visitInstantiation(HqlParser.InstantiationContext ctx) {
		final var dynamicInstantiation = visitInstantiationTarget( ctx.instantiationTarget() );
		for ( var arg : ctx.instantiationArguments().instantiationArgument() ) {
			dynamicInstantiation.addArgument( visitInstantiationArgument( arg ) );
		}

		if ( !dynamicInstantiation.checkInstantiation( creationContext.getTypeConfiguration() ) ) {
			final String typeName = dynamicInstantiation.getJavaType().getSimpleName();
			if ( dynamicInstantiation.isFullyAliased() ) {
				throw new SemanticException( "Missing constructor or attributes for injection into type '" + typeName + "'", query );
			}
			else {
				throw new SemanticException( "Missing constructor for type '" + typeName  + "'", query );
			}
		}

		return dynamicInstantiation;
	}

	@Override
	public SqmDynamicInstantiation<?> visitInstantiationTarget(HqlParser.InstantiationTargetContext ctx) {
		if ( ctx.MAP() != null ) {
			return forMapInstantiation( mapJavaType, nodeBuilder() );
		}
		else if ( ctx.LIST() != null ) {
			return forListInstantiation( listJavaType, nodeBuilder() );
		}
		else {
			final var simplePath = ctx.simplePath();
			if ( simplePath == null ) {
				throw new SyntaxException( "Missing instantiation target type" );

View on GitHub (pinned to fad1729dce)

Solutions

1. Add a constructor with the required signature to the target type.
2. Check argument count and types of the 'new' instantiation.

When it happens

Trigger: A dynamic instantiation (select new) target cannot be constructed.

Common situations: Using 'select new SomeClass(...)' where the class is missing or has no matching constructor.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/9c2310ca48720600. Report an issue: GitHub.