HSEARCH-4635 Implement ScrollableResults#setFetchSize by throwing an …

…error

This is necessary in order to support ORM 6.1.2.Final.

mapper/orm/src/main/java/org/hibernate/search/mapper/orm/logging/impl/Log.java

@@ -257,8 +257,6 @@ SearchException foundMultipleEntitiesForDocumentId(String entityName, String doc
 	@Message(id = ID_OFFSET + 56, value = "Ignoring unrecognized query hint [%s]")
 	void ignoringUnrecognizedQueryHint(String hintName);
 
-	// NOTE: This is used in -orm6 modules
-	@SuppressWarnings("unused")
 	@Message(id = ID_OFFSET + 57, value = "Cannot set the fetch size of Hibernate Search ScrollableResults after having created them."
 			+ " If you want to define the size of batches for entity loading, set loading options when defining the query instead,"
 			+ " for example with .loading(o -> o.fetchSize(50))."

mapper/orm/src/main/java/org/hibernate/search/mapper/orm/search/query/spi/HibernateOrmSearchScrollableResultsAdapter.java

@@ -195,6 +195,11 @@ public boolean setRowNumber(int rowNumber) {
 		return scroll( rowNumber - currentIndexInScroll );
 	}
 
+	// We cannot use @Override here because this method only exists in ORM 6.1.2+
+	public void setFetchSize(int i) {
+		throw log.cannotSetFetchSize();
+	}
+
 	@Override
 	public boolean isClosed() {
 		return closed;