hibernate/hibernate-orm · error · IllegalStateException

MutationQuery cannot be treated as a SelectionQuery - {}

Error message

MutationQuery cannot be treated as a SelectionQuery - {}

What it means

Error "MutationQuery cannot be treated as a SelectionQuery - {}" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/query/spi/MutationQueryImplementor.java:237

	@Override
	@Nonnull
	<P> MutationQueryImplementor<T> setConvertedParameter(@Nonnull String name, @Nullable P value, @Nonnull Class<? extends AttributeConverter<P, ?>> converter);

	@Override
	@Nonnull
	<P> MutationQueryImplementor<T> setConvertedParameter(int position, @Nullable P value, @Nonnull Class<? extends AttributeConverter<P, ?>> converter);


	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// SelectionQuery stuff

	@Override
	@Deprecated
	@SuppressWarnings("removal")
	@Nullable
	default LockModeType getLockMode() {
		// IllegalStateException is the type required by JPA
		throw new IllegalStateException( "MutationQuery cannot be treated as a SelectionQuery - " + getMutationString() );
	}

	@Override
	@Deprecated
	@SuppressWarnings("removal")
	@Nonnull
	default QueryImplementor<T> setLockMode(@Nonnull LockModeType lockMode) {
		// IllegalStateException is the type required by JPA
		throw new IllegalStateException( "MutationQuery cannot be treated as a SelectionQuery - " + getMutationString() );
	}

	@Override
	@Deprecated
	@SuppressWarnings("removal")
	@Nonnull
	default CacheStoreMode getCacheStoreMode() {
		throw new IllegalStateException( "MutationQuery cannot be treated as a SelectionQuery - " + getMutationString() );
	}

View on GitHub (pinned to fad1729dce)

Solutions

1. A MutationQuery cannot be used as a SelectionQuery. Use a select query to read results, or executeUpdate() for the mutation.

When it happens

Trigger: A selection-only operation is invoked on a mutation (insert/update/delete) query: MutationQuery cannot be treated as a SelectionQuery - <value>

Common situations: Calling getResultList()/scroll()/unwrap(SelectionQuery) on a Query created from an update/delete/insert HQL statement, or vice versa.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/852fa59d753d20bf. Report an issue: GitHub.