Revert "Add EQ|QL version support with its default value (#791) (#792)"

This reverts commit 8f4c36c.

java-client/src/main-flavored/java/co/elastic/clients/elasticsearch/_helpers/esql/EsqlHelper.java

@@ -22,7 +22,6 @@
 import co.elastic.clients.elasticsearch._types.FieldValue;
 import co.elastic.clients.elasticsearch.esql.ElasticsearchEsqlAsyncClient;
 import co.elastic.clients.elasticsearch.esql.ElasticsearchEsqlClient;
-import co.elastic.clients.elasticsearch.esql.EsqlVersion;
 import co.elastic.clients.elasticsearch.esql.QueryRequest;
 import co.elastic.clients.json.JsonData;
 import co.elastic.clients.transport.endpoints.BinaryResponse;
@@ -37,9 +36,9 @@ public class EsqlHelper {
     //----- Synchronous
 
     public static <T> T query(
-        ElasticsearchEsqlClient client, EsqlVersion version, EsqlAdapter<T> adapter, String query, Object... params
+        ElasticsearchEsqlClient client, EsqlAdapter<T> adapter, String query, Object... params
     ) throws IOException {
-        QueryRequest request = buildRequest(version, adapter, query, params);
+        QueryRequest request = buildRequest(adapter, query, params);
         BinaryResponse response = client.query(request);
         return adapter.deserialize(client, request, response);
     }
@@ -53,9 +52,9 @@ public static <T> T query(ElasticsearchEsqlClient client, EsqlAdapter<T> adapter
     //----- Asynchronous
 
     public static <T> CompletableFuture<T> queryAsync(
-        ElasticsearchEsqlAsyncClient client, EsqlVersion version, EsqlAdapter<T> adapter, String query, Object... params
+        ElasticsearchEsqlAsyncClient client, EsqlAdapter<T> adapter, String query, Object... params
     ) {
-        return doQueryAsync(client, adapter, buildRequest(version, adapter, query, params));
+        return doQueryAsync(client, adapter, buildRequest(adapter, query, params));
     }
 
     public static <T> CompletableFuture<T> queryAsync(
@@ -80,19 +79,9 @@ private static <T> CompletableFuture<T> doQueryAsync(
 
     //----- Utilities
 
-    private static QueryRequest buildRequest(EsqlVersion version, EsqlAdapter<?> adapter, String query, Object... params) {
-        if (version == null) {
-            version = EsqlVersion.getDefault();
-        }
-        if (version == null) {
-            throw new IllegalStateException(
-                "ES|QL default version not set. Either specify it explicitly or set a default value");
-        }
-        EsqlVersion v = version;
-
+    private static QueryRequest buildRequest(EsqlAdapter<?> adapter, String query, Object... params) {
         return QueryRequest.of(esql -> esql
             .format(adapter.format())
-            .version(v)
             .columnar(adapter.columnar())
             .query(query)
             .params(asFieldValues(params))
@@ -110,7 +99,6 @@ private static QueryRequest buildRequest(EsqlAdapter<?> adapter, QueryRequest re
             .locale(request.locale())
             .params(request.params())
             .query(request.query())
-            .version(request.version())
         );
     }
 

java-client/src/test/java/co/elastic/clients/elasticsearch/ElasticsearchTestServer.java

@@ -117,10 +117,10 @@ public synchronized ElasticsearchTestServer start() {
             return this;
         }
 
-        Version version = Version.VERSION.major() < 8 ? new Version(7,17,5,false) : new Version(8,14,0,false);
+        Version version = Version.VERSION.major() < 8 ? new Version(7,17,5,false) : new Version(8,12,0,false);
 
         // Note we could use version.major() + "." + version.minor() + "-SNAPSHOT" but plugins won't install on a snapshot version
-        String esImage = "docker.elastic.co/elasticsearch/elasticsearch:" + version + "-SNAPSHOT";
+        String esImage = "docker.elastic.co/elasticsearch/elasticsearch:" + version;
 
         DockerImageName image;
         if (plugins.length == 0) {

java-client/src/test/java/co/elastic/clients/elasticsearch/_helpers/esql/EsqlAdapterEndToEndTest.java

@@ -134,7 +134,7 @@ public void objectsTest() throws Exception {
         {
             EmpData emp = it.next();
             assertEquals("10042", emp.empNo);
-            assertEquals(Arrays.asList("Architect", "Business Analyst", "Junior Developer", "Internship"), emp.jobPositions);
+            assertEquals(Arrays.asList("Architect", "Business Analyst", "Internship", "Junior Developer"), emp.jobPositions);
 
             assertEquals("1993-03-21T00:00:00Z[UTC]",
                 DateTimeFormatter.ISO_DATE_TIME.format(emp.hireDate.toInstant().atZone(ZoneId.of("UTC")))
@@ -172,7 +172,7 @@ public void asyncObjects() throws Exception {
                 {
                     EmpData emp = it.next();
                     assertEquals("10042", emp.empNo);
-                    assertEquals(Arrays.asList("Architect", "Business Analyst", "Junior Developer", "Internship"), emp.jobPositions);
+                    assertEquals(Arrays.asList("Architect", "Business Analyst", "Internship", "Junior Developer"), emp.jobPositions);
 
                     assertEquals("1993-03-21T00:00:00Z[UTC]",
                         DateTimeFormatter.ISO_DATE_TIME.format(emp.hireDate.toInstant().atZone(ZoneId.of("UTC")))

java-client/src/test/java/co/elastic/clients/elasticsearch/spec_issues/SpecIssuesTest.java

@@ -164,7 +164,6 @@ public void i0254_suggesterTest() throws Exception {
     }
 
     @Test
-    @Disabled("Plugins cannot be installed on snapshot versions of ES")
     public void i0249_variantKind() throws Exception {
         try (ElasticsearchTestServer server = new ElasticsearchTestServer("analysis-icu").start()) {