Sql aggregator does not work in native mode.

docs/modules/ROOT/pages/reference/extensions/sql.adoc

@@ -40,6 +40,41 @@ Or add the coordinates to your existing project:
 
 Check the xref:user-guide/index.adoc[User guide] for more information about writing Camel Quarkus applications.
 
+== Usage
+
+If you are using SQL Aggregator in native mode, you have to register several classes for serialization using GraalVM
+feature. Serialization support since GraalVM 21.0 allows developers to configure classes for serialization via
+the serialization configuration file `-H:SerializationConfigurationResources=/path-to/serialization-config.json` option.
+For more information see https://github.com/oracle/graal/pull/2730[pull request with feature].
+
+Several classes has to be registered for serialization every time to make SQL Aggregator work in native.
+Here is a template of `serialization-config.json` with all mandatory classes:
+
+```
+[
+  {
+    "name" : "java.lang.Integer"
+  },
+  {
+    "name" : "java.lang.Number"
+  },
+  {
+    "name" : "java.lang.String"
+  },
+  {
+    "name" : "java.util.HashMap"
+  },
+  {
+    "name" : "java.util.LinkedHashMap"
+  },
+  {
+    "name" : "org.apache.camel.support.DefaultExchangeHolder"
+  }
+]
+```
+
+
+
 == Additional Camel Quarkus configuration
 
 === Configuring a DataSource

extensions/sql/runtime/src/main/doc/usage.adoc

@@ -0,0 +1,31 @@
+If you are using SQL Aggregator in native mode, you have to register several classes for serialization using GraalVM
+feature. Serialization support since GraalVM 21.0 allows developers to configure classes for serialization via
+the serialization configuration file `-H:SerializationConfigurationResources=/path-to/serialization-config.json` option.
+For more information see https://github.com/oracle/graal/pull/2730[pull request with feature].
+
+Several classes has to be registered for serialization every time to make SQL Aggregator work in native.
+Here is a template of `serialization-config.json` with all mandatory classes:
+
+```
+[
+  {
+    "name" : "java.lang.Integer"
+  },
+  {
+    "name" : "java.lang.Number"
+  },
+  {
+    "name" : "java.lang.String"
+  },
+  {
+    "name" : "java.util.HashMap"
+  },
+  {
+    "name" : "java.util.LinkedHashMap"
+  },
+  {
+    "name" : "org.apache.camel.support.DefaultExchangeHolder"
+  }
+]
+```
+

integration-tests/sql/src/main/resources/application.properties

@@ -18,3 +18,6 @@
 # Camel Quarkus SQL
 #
 quarkus.camel.sql.script-files=sql/get-camels.sql,sql/initDb.sql,sql/selectProjects.sql
+
+#Serialization-config.json is a workaround until serilazation support makes it into Quarkus (see https://github.com/quarkusio/quarkus/pull/15380)
+quarkus.native.additional-build-args=-H:SerializationConfigurationResources=serialization-config.json

integration-tests/sql/src/main/resources/serialization-config.json

@@ -0,0 +1,20 @@
+[
+  {
+    "name" : "java.lang.Integer"
+  },
+  {
+    "name" : "java.lang.Number"
+  },
+  {
+    "name" : "java.lang.String"
+  },
+  {
+    "name" : "java.util.HashMap"
+  },
+  {
+    "name" : "java.util.LinkedHashMap"
+  },
+  {
+    "name" : "org.apache.camel.support.DefaultExchangeHolder"
+  }
+]

integration-tests/sql/src/test/java/org/apache/camel/quarkus/component/sql/it/SqlTest.java

@@ -27,7 +27,6 @@
 import io.restassured.specification.RequestSpecification;
 import org.apache.camel.component.sql.SqlConstants;
 import org.apache.camel.util.CollectionHelper;
-import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
 import static io.restassured.RestAssured.given;
@@ -189,7 +188,6 @@ public void testIdempotentRepository() {
     }
 
     @Test
-    @Disabled //see https://github.com/apache/camel-quarkus/issues/2693
     public void testAggregationRepository() {
         postMapWithParam("/sql/toDirect/aggregation", "body", "A", CollectionHelper.mapOf("messageId", "123"))
                 .statusCode(200);