Fix API name, remove test warning

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/ElasticsearchTestBasePlugin.java

@@ -120,7 +120,8 @@ public void execute(Task t) {
                 "--add-opens=java.base/java.nio.file=ALL-UNNAMED",
                 "--add-opens=java.base/java.time=ALL-UNNAMED",
                 "--add-opens=java.management/java.lang.management=ALL-UNNAMED",
-                "--add-opens=java.base/java.nio=org.apache.arrow.memory.core,ALL-UNNAMED",
+                // Arrow (may need to be replaced by org.apache.arrow.memory.core once modularized)
+                "--add-opens=java.base/java.nio=ALL-UNNAMED",
                 // Define the allocation manager type to avoid classpath scanning to locate one.
                 "-Darrow.allocation.manager.type=Unsafe",
                 "-XX:+HeapDumpOnOutOfMemoryError"

rest-api-spec/src/main/resources/rest-api-spec/api/arrow.bulk.json

@@ -1,5 +1,5 @@
 {
-  "bulk":{
+  "arrow.bulk":{
     "documentation":{
       "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/docs-bulk.html",
       "description":"Allows to perform multiple index/update/delete operations in a single request using the Arrow IPC streaming format."