[Placement Group]Enhance create placement group java api (#11702)

* enhance create pg java api

* add state for PlacementGroup

* fix comment

* move default pg

* make default pg name private

* add bundle size and bundle resource size check when placement group create

java/api/src/main/java/io/ray/api/Ray.java

@@ -245,10 +245,16 @@ public final class Ray extends RayCall {
    * to be updated and rescheduled.
    * This function only works when gcs actor manager is turned on.
    *
-   * @param bundles Preallocated resource list.
+   * @param name Name of the Placement Group.
+   * @param bundles Pre-allocated resource list.
    * @param strategy Actor placement strategy.
    * @return A handle to the created placement group.
    */
+  public static PlacementGroup createPlacementGroup(String name,
+      List<Map<String, Double>> bundles, PlacementStrategy strategy) {
+    return internal().createPlacementGroup(name, bundles, strategy);
+  }
+
   public static PlacementGroup createPlacementGroup(List<Map<String, Double>> bundles,
       PlacementStrategy strategy) {
     return internal().createPlacementGroup(bundles, strategy);

java/api/src/main/java/io/ray/api/runtime/RayRuntime.java

@@ -169,6 +169,9 @@ public interface RayRuntime {
   PyActorHandle createActor(PyActorClass pyActorClass, Object[] args,
                             ActorCreationOptions options);
 
+  PlacementGroup createPlacementGroup(String name, List<Map<String, Double>> bundles,
+      PlacementStrategy strategy);
+
   PlacementGroup createPlacementGroup(List<Map<String, Double>> bundles,
       PlacementStrategy strategy);
 
@@ -198,4 +201,5 @@ public interface RayRuntime {
    * Intentionally exit the current actor.
    */
   void exitActor();
+
 }