Index nesting tests

THIRD-PARTY

@@ -0,0 +1,203 @@
+** Kilo --https://github.com/HTTP-RPC/Kilo
+
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.github/workflows/opensearch-simpleschema-test-and-build-workflow.yml

@@ -25,23 +25,6 @@ jobs:
         with:
           java-version: ${{ matrix.java }}
 
-      # dependencies: OpenSearch-sql
-#      - name: Checkout Opensearch-SQL-Plugin
-#        uses: actions/checkout@v2
-#        with:
-#          repository: 'opensearch-project/sql'
-#          path: OpenSearch-SQL
-#          ref: ${{ env.OPENSEARCH_VERSION }}
-#      - name: Build Opensearch-SQL-Plugin
-#        working-directory: ./OpenSearch-SQL
-#        run: ./gradlew publishToMavenLocal -Dbuild.snapshot=false
-
-#      - name: Run Backwards Compatibility Tests
-#        run: |
-#          cd services
-#          echo "Running backwards compatibility tests ..."
-#          ./gradlew bwcTestSuite -Dtests.security.manager=false
-
       - name: Build with Gradle
         run: |
           ./gradlew build

build.gradle

@@ -106,7 +106,7 @@ jacocoTestCoverageVerification {
     violationRules {
         rule {
             limit {
-                minimum = 0.4
+                minimum = 0.5
             }
 
         }

core/src/main/java/org/opensearch/graphql/GraphQLSchemaUtils.java

@@ -79,7 +79,7 @@ static Optional<GraphQLFieldDefinition> getFieldByName(List<GraphQLFieldDefiniti
                 .findAny();
     }
 
-    static Collection<DirectiveType> formatDirective(Optional<? extends GraphQLDirectiveContainer> element) {
+    static List<DirectiveType> formatDirective(Optional<? extends GraphQLDirectiveContainer> element) {
         return (element.isEmpty() ? Collections.emptyList() :
                 element.get().getAppliedDirectives().stream()
                         .map(d -> new DirectiveType(d.getName(),