hibernate/hibernate-orm · error · IllegalMutationQueryException

Not a mutation query

Error message

Not a mutation query

What it means

Error "Not a mutation query" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/query/internal/SelectionQueryImpl.java:1630

	@Override @Deprecated @SuppressWarnings("deprecation")
	@Nonnull
	public SelectionQueryImplementor<R> setParameter(int position, @Nullable Calendar value, @Nonnull TemporalType temporalType) {
		super.setParameter( position, value, temporalType );
		return this;
	}

	@Override @Deprecated @SuppressWarnings("deprecation")
	@Nonnull
	public SelectionQueryImplementor<R> setParameter(int position, @Nullable Date value, @Nonnull TemporalType temporalType) {
		super.setParameter( position, value, temporalType );
		return this;
	}

	@Override
	@Nonnull
	public MutationQueryImplementor<R> asMutationQuery() {
		throw new IllegalMutationQueryException( "Not a mutation query", getQueryString() );
	}
}

View on GitHub (pinned to fad1729dce)

Solutions

1. The query is not a mutation query. Only update/delete/insert queries can be used where a MutationQuery is expected.

When it happens

Trigger: A query is treated as the wrong kind (selection vs mutation): Not a mutation query

Common situations: Unwrapping/casting a SelectionQuery to MutationQuery (or the reverse) when the underlying statement type does not match.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/66886ba6272f9157. Report an issue: GitHub.