[Java] Rename group id and package name. (#7864)

* Initial

* Change streaming's

* Fix

* Fix

* Fix org_ray

* Fix cpp file name

* Fix streaming

* Fix

* Fix

* Fix testlistening

* Fix missing sth in python

* Fix

* Fix

* Fix SPI

* Fix

* Fix complation

* Fix

* Fix CI

* Fix checkstyle

Fix checkstyle

* Fix streaming tests

* Fix streaming CI

* Fix streaming checkstyle.

* Fix build

* Fix bazel dep

* Fix

* Fix ray checkstyle

* Fix streaming checkstyle

* Fix bazel checkstyle

.gitignore

@@ -15,7 +15,7 @@
 /src/ray/gcs/format/*_generated.h
 /src/ray/object_manager/format/*_generated.h
 /src/ray/raylet/format/*_generated.h
-/java/runtime/src/main/java/org/ray/runtime/generated/*
+/java/runtime/src/main/java/io/ray/runtime/generated/*
 
 # Redis temporary files
 *dump.rdb
@@ -152,7 +152,7 @@ java/runtime/native_dependencies/
 
 # streaming/python
 streaming/python/generated/
-streaming/java/streaming-runtime/src/main/java/org/ray/streaming/runtime/generated/
+streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/generated/
 streaming/build/java
 .clwb
 streaming/**/.settings

bazel/ray.bzl

@@ -32,7 +32,7 @@ def define_java_module(
         define_test_lib = False,
         test_deps = [],
         **kwargs):
-    lib_name = "org_ray_ray_" + name
+    lib_name = "io_ray_ray_" + name
     pom_file_targets = [lib_name]
     native.java_library(
         name = lib_name,
@@ -44,15 +44,15 @@ def define_java_module(
         **kwargs
     )
     checkstyle_test(
-        name = "org_ray_ray_" + name + "-checkstyle",
-        target = ":org_ray_ray_" + name,
+        name = "io_ray_ray_" + name + "-checkstyle",
+        target = ":io_ray_ray_" + name,
         config = "//java:checkstyle.xml",
         suppressions = "//java:checkstyle-suppressions.xml",
         size = "small",
         tags = ["checkstyle"],
     )
     if define_test_lib:
-        test_lib_name = "org_ray_ray_" + name + "_test"
+        test_lib_name = "io_ray_ray_" + name + "_test"
         pom_file_targets.append(test_lib_name)
         native.java_library(
             name = test_lib_name,
@@ -60,15 +60,15 @@ def define_java_module(
             deps = test_deps,
         )
         checkstyle_test(
-            name = "org_ray_ray_" + name + "_test-checkstyle",
-            target = ":org_ray_ray_" + name + "_test",
+            name = "io_ray_ray_" + name + "_test-checkstyle",
+            target = ":io_ray_ray_" + name + "_test",
             config = "//java:checkstyle.xml",
             suppressions = "//java:checkstyle-suppressions.xml",
             size = "small",
             tags = ["checkstyle"],
         )
     pom_file(
-        name = "org_ray_ray_" + name + "_pom",
+        name = "io_ray_ray_" + name + "_pom",
         targets = pom_file_targets,
         template_file = name + "/pom_template.xml",
         substitutions = {

java/BUILD.bazel

@@ -17,17 +17,17 @@ all_modules = [
 java_import(
     name = "all_modules",
     jars = [
-        "liborg_ray_ray_" + module + ".jar"
+        "libio_ray_ray_" + module + ".jar"
         for module in all_modules
     ] + [
-        "liborg_ray_ray_" + module + "-src.jar"
+        "libio_ray_ray_" + module + "-src.jar"
         for module in all_modules
     ] + [
         "all_tests_deploy.jar",
         "all_tests_deploy-src.jar",
     ],
     deps = [
-        ":org_ray_ray_" + module
+        ":io_ray_ray_" + module
         for module in all_modules
     ] + [
         ":all_tests",
@@ -56,11 +56,11 @@ define_java_module(
     ],
     define_test_lib = True,
     exclude_srcs = [
-        "runtime/src/main/java/org/ray/runtime/generated/*.java",
+        "runtime/src/main/java/io/ray/runtime/generated/*.java",
     ],
     test_deps = [
-        ":org_ray_ray_api",
-        ":org_ray_ray_runtime",
+        ":io_ray_ray_api",
+        ":io_ray_ray_runtime",
         "@maven//:org_apache_commons_commons_lang3",
         "@maven//:com_beust_jcommander",
         "@maven//:org_testng_testng",
@@ -68,7 +68,7 @@ define_java_module(
     ],
     visibility = ["//visibility:public"],
     deps = [
-        ":org_ray_ray_api",
+        ":io_ray_ray_api",
         "@maven//:com_google_guava_guava",
         "@maven//:com_google_protobuf_protobuf_java",
         "@maven//:com_typesafe_config",
@@ -80,6 +80,7 @@ define_java_module(
         "@maven//:org_ow2_asm_asm",
         "@maven//:org_slf4j_slf4j_api",
         "@maven//:org_slf4j_slf4j_log4j12",
+        "@maven//:org_testng_testng",
         "@maven//:redis_clients_jedis",
     ],
 )
@@ -87,8 +88,8 @@ define_java_module(
 define_java_module(
     name = "tutorial",
     deps = [
-        ":org_ray_ray_api",
-        ":org_ray_ray_runtime",
+        ":io_ray_ray_api",
+        ":io_ray_ray_runtime",
         "@maven//:com_google_guava_guava",
     ],
 )
@@ -96,8 +97,8 @@ define_java_module(
 define_java_module(
     name = "test",
     deps = [
-        ":org_ray_ray_api",
-        ":org_ray_ray_runtime",
+        ":io_ray_ray_api",
+        ":io_ray_ray_runtime",
         "@maven//:com_google_code_gson_gson",
         "@maven//:com_google_guava_guava",
         "@maven//:com_sun_xml_bind_jaxb_core",
@@ -116,8 +117,8 @@ java_binary(
     data = ["testng.xml"],
     main_class = "org.testng.TestNG",
     runtime_deps = [
-        ":org_ray_ray_runtime_test",
-        ":org_ray_ray_test",
+        ":io_ray_ray_runtime_test",
+        ":io_ray_ray_test",
     ],
 )
 
@@ -164,7 +165,7 @@ filegroup(
     ],
 )
 
-# Generates the depedencies needed by maven.
+# Generates the dependencies needed by maven.
 genrule(
     name = "gen_maven_deps",
     srcs = [
@@ -177,7 +178,7 @@ genrule(
         set -x
         WORK_DIR="$$(pwd)"
         # Copy protobuf-generated files.
-        rm -rf "$$WORK_DIR/java/runtime/src/main/java/org/ray/runtime/generated"
+        rm -rf "$$WORK_DIR/java/runtime/src/main/java/io/ray/runtime/generated"
         for f in $(locations //java:all_java_proto); do
             unzip "$$f" -x META-INF/MANIFEST.MF -d "$$WORK_DIR/java/runtime/src/main/java"
         done
@@ -198,17 +199,17 @@ genrule(
 genrule(
     name = "copy_pom_file",
     srcs = [
-        "//java:org_ray_ray_" + module + "_pom"
+        "//java:io_ray_ray_" + module + "_pom"
         for module in all_modules
     ],
     outs = ["copy_pom_file.out"],
     cmd = """
         set -x
         WORK_DIR="$$(pwd)"
-        cp -f $(location //java:org_ray_ray_api_pom) "$$WORK_DIR/java/api/pom.xml"
-        cp -f $(location //java:org_ray_ray_runtime_pom) "$$WORK_DIR/java/runtime/pom.xml"
-        cp -f $(location //java:org_ray_ray_tutorial_pom) "$$WORK_DIR/java/tutorial/pom.xml"
-        cp -f $(location //java:org_ray_ray_test_pom) "$$WORK_DIR/java/test/pom.xml"
+        cp -f $(location //java:io_ray_ray_api_pom) "$$WORK_DIR/java/api/pom.xml"
+        cp -f $(location //java:io_ray_ray_runtime_pom) "$$WORK_DIR/java/runtime/pom.xml"
+        cp -f $(location //java:io_ray_ray_tutorial_pom) "$$WORK_DIR/java/tutorial/pom.xml"
+        cp -f $(location //java:io_ray_ray_test_pom) "$$WORK_DIR/java/test/pom.xml"
         date > $@
     """,
     local = 1,
@@ -221,10 +222,10 @@ java_binary(
     # fat jar file. It's not really an executable jar. So we set its `main_class` to empty.
     main_class = "",
     runtime_deps = [
-        "//java:org_ray_ray_api",
-        "//java:org_ray_ray_runtime",
-        "//streaming/java:org_ray_ray_streaming-api",
-        "//streaming/java:org_ray_ray_streaming-runtime",
+        "//java:io_ray_ray_api",
+        "//java:io_ray_ray_runtime",
+        "//streaming/java:io_ray_ray_streaming-api",
+        "//streaming/java:io_ray_ray_streaming-runtime",
     ],
 )
 

java/api/pom.xml

@@ -4,7 +4,7 @@
   xmlns="http://maven.apache.org/POM/4.0.0"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <parent>
-    <groupId>org.ray</groupId>
+    <groupId>io.ray</groupId>
     <artifactId>ray-superpom</artifactId>
     <version>0.1-SNAPSHOT</version>
   </parent>

java/api/pom_template.xml

@@ -4,7 +4,7 @@
   xmlns="http://maven.apache.org/POM/4.0.0"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <parent>
-    <groupId>org.ray</groupId>
+    <groupId>io.ray</groupId>
     <artifactId>ray-superpom</artifactId>
     <version>0.1-SNAPSHOT</version>
   </parent>

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

@@ -1,19 +1,19 @@
 // Generated by `RayCallGenerator.java`. DO NOT EDIT.
 
-package org.ray.api;
+package io.ray.api;
 
-import org.ray.api.function.RayFunc1;
-import org.ray.api.function.RayFunc2;
-import org.ray.api.function.RayFunc3;
-import org.ray.api.function.RayFunc4;
-import org.ray.api.function.RayFunc5;
-import org.ray.api.function.RayFunc6;
-import org.ray.api.function.RayFuncVoid1;
-import org.ray.api.function.RayFuncVoid2;
-import org.ray.api.function.RayFuncVoid3;
-import org.ray.api.function.RayFuncVoid4;
-import org.ray.api.function.RayFuncVoid5;
-import org.ray.api.function.RayFuncVoid6;
+import io.ray.api.function.RayFunc1;
+import io.ray.api.function.RayFunc2;
+import io.ray.api.function.RayFunc3;
+import io.ray.api.function.RayFunc4;
+import io.ray.api.function.RayFunc5;
+import io.ray.api.function.RayFunc6;
+import io.ray.api.function.RayFuncVoid1;
+import io.ray.api.function.RayFuncVoid2;
+import io.ray.api.function.RayFuncVoid3;
+import io.ray.api.function.RayFuncVoid4;
+import io.ray.api.function.RayFuncVoid5;
+import io.ray.api.function.RayFuncVoid6;
 
 /**
  * This class provides type-safe interfaces for remote actor calls.

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

@@ -1,6 +1,6 @@
-package org.ray.api;
+package io.ray.api;
 
-import org.ray.api.id.ActorId;
+import io.ray.api.id.ActorId;
 
 /**
  * A handle to an actor. <p>

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

@@ -1,10 +1,9 @@
-package org.ray.api;
+package io.ray.api;
 
+import io.ray.api.id.ActorId;
+import io.ray.api.id.UniqueId;
 import java.util.List;
 
-import org.ray.api.id.ActorId;
-import org.ray.api.id.UniqueId;
-
 public interface Checkpointable {
 
   class CheckpointContext {

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

@@ -1,8 +1,8 @@
 // Generated by `RayCallGenerator.java`. DO NOT EDIT.
 
-package org.ray.api;
+package io.ray.api;
 
-import org.ray.api.function.PyActorMethod;
+import io.ray.api.function.PyActorMethod;
 
 /**
  * This class provides type-safe interfaces for remote actor calls.

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

@@ -1,13 +1,13 @@
-package org.ray.api;
+package io.ray.api;
 
+import io.ray.api.id.ObjectId;
+import io.ray.api.id.UniqueId;
+import io.ray.api.runtime.RayRuntime;
+import io.ray.api.runtime.RayRuntimeFactory;
+import io.ray.api.runtimecontext.RuntimeContext;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.Callable;
-import org.ray.api.id.ObjectId;
-import org.ray.api.id.UniqueId;
-import org.ray.api.runtime.RayRuntime;
-import org.ray.api.runtime.RayRuntimeFactory;
-import org.ray.api.runtimecontext.RuntimeContext;
 
 /**
  * This class contains all public APIs of Ray.
@@ -21,7 +21,7 @@ public final class Ray extends RayCall {
    */
   public static void init() {
     try {
-      Class clz = Class.forName("org.ray.runtime.DefaultRayRuntimeFactory");
+      Class clz = Class.forName("io.ray.runtime.DefaultRayRuntimeFactory");
       RayRuntimeFactory factory = (RayRuntimeFactory) clz.newInstance();
       init(factory);
     } catch (Exception e) {

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

@@ -1,4 +1,4 @@
-package org.ray.api;
+package io.ray.api;
 
 /**
  * A handle to a Java actor. <p>

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

@@ -1,25 +1,25 @@
 // Generated by `RayCallGenerator.java`. DO NOT EDIT.
 
-package org.ray.api;
+package io.ray.api;
 
-import org.ray.api.function.PyActorClass;
-import org.ray.api.function.PyRemoteFunction;
-import org.ray.api.function.RayFunc0;
-import org.ray.api.function.RayFunc1;
-import org.ray.api.function.RayFunc2;
-import org.ray.api.function.RayFunc3;
-import org.ray.api.function.RayFunc4;
-import org.ray.api.function.RayFunc5;
-import org.ray.api.function.RayFunc6;
-import org.ray.api.function.RayFuncVoid0;
-import org.ray.api.function.RayFuncVoid1;
-import org.ray.api.function.RayFuncVoid2;
-import org.ray.api.function.RayFuncVoid3;
-import org.ray.api.function.RayFuncVoid4;
-import org.ray.api.function.RayFuncVoid5;
-import org.ray.api.function.RayFuncVoid6;
-import org.ray.api.options.ActorCreationOptions;
-import org.ray.api.options.CallOptions;
+import io.ray.api.function.PyActorClass;
+import io.ray.api.function.PyRemoteFunction;
+import io.ray.api.function.RayFunc0;
+import io.ray.api.function.RayFunc1;
+import io.ray.api.function.RayFunc2;
+import io.ray.api.function.RayFunc3;
+import io.ray.api.function.RayFunc4;
+import io.ray.api.function.RayFunc5;
+import io.ray.api.function.RayFunc6;
+import io.ray.api.function.RayFuncVoid0;
+import io.ray.api.function.RayFuncVoid1;
+import io.ray.api.function.RayFuncVoid2;
+import io.ray.api.function.RayFuncVoid3;
+import io.ray.api.function.RayFuncVoid4;
+import io.ray.api.function.RayFuncVoid5;
+import io.ray.api.function.RayFuncVoid6;
+import io.ray.api.options.ActorCreationOptions;
+import io.ray.api.options.CallOptions;
 
 /**
  * This class provides type-safe interfaces for `Ray.call` and `Ray.createActor`.

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

@@ -1,6 +1,6 @@
-package org.ray.api;
+package io.ray.api;
 
-import org.ray.api.id.ObjectId;
+import io.ray.api.id.ObjectId;
 
 /**
  * Represents an object in the object store.

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

@@ -1,4 +1,4 @@
-package org.ray.api;
+package io.ray.api;
 
 /**
  * Handle of a Python actor.

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

@@ -1,4 +1,4 @@
-package org.ray.api;
+package io.ray.api;
 
 import java.util.List;
 

java/api/src/main/java/io/ray/api/exception/RayActorException.java

@@ -1,4 +1,4 @@
-package org.ray.api.exception;
+package io.ray.api.exception;
 
 /**
  * Indicates that the actor died unexpectedly before finishing a task.

java/api/src/main/java/io/ray/api/exception/RayException.java

@@ -1,4 +1,4 @@
-package org.ray.api.exception;
+package io.ray.api.exception;
 
 /**
  * Base class of all ray exceptions.

java/api/src/main/java/io/ray/api/exception/RayTaskException.java

@@ -1,4 +1,4 @@
-package org.ray.api.exception;
+package io.ray.api.exception;
 
 /**
  * Indicates that a task threw an exception during execution.

java/api/src/main/java/io/ray/api/exception/RayWorkerException.java

@@ -1,4 +1,4 @@
-package org.ray.api.exception;
+package io.ray.api.exception;
 
 /**
  * Indicates that the worker died unexpectedly while executing a task.

java/api/src/main/java/io/ray/api/exception/UnreconstructableException.java

@@ -1,6 +1,6 @@
-package org.ray.api.exception;
+package io.ray.api.exception;
 
-import org.ray.api.id.ObjectId;
+import io.ray.api.id.ObjectId;
 
 /**
  * Indicates that an object is lost (either evicted or explicitly deleted) and cannot be

java/api/src/main/java/io/ray/api/function/PyActorClass.java

@@ -1,4 +1,4 @@
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * A class that represents a Python actor class.

java/api/src/main/java/io/ray/api/function/PyActorMethod.java

@@ -1,4 +1,4 @@
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * A class that represents a method of a Python actor. 

java/api/src/main/java/io/ray/api/function/PyRemoteFunction.java

@@ -1,4 +1,4 @@
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * A class that represents a Python remote function.

java/api/src/main/java/io/ray/api/function/RayFunc.java

@@ -1,4 +1,4 @@
-package org.ray.api.function;
+package io.ray.api.function;
 
 import java.io.Serializable;
 

java/api/src/main/java/io/ray/api/function/RayFunc0.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 0 parameter.

java/api/src/main/java/io/ray/api/function/RayFunc1.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 1 parameter.

java/api/src/main/java/io/ray/api/function/RayFunc2.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 2 parameters.

java/api/src/main/java/io/ray/api/function/RayFunc3.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 3 parameters.

java/api/src/main/java/io/ray/api/function/RayFunc4.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 4 parameters.

java/api/src/main/java/io/ray/api/function/RayFunc5.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 5 parameters.

java/api/src/main/java/io/ray/api/function/RayFunc6.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 6 parameters.

java/api/src/main/java/io/ray/api/function/RayFuncVoid.java

@@ -1,4 +1,4 @@
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Interface of all `RayFuncVoidX` classes.

java/api/src/main/java/io/ray/api/function/RayFuncVoid0.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 0 parameter.

java/api/src/main/java/io/ray/api/function/RayFuncVoid1.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 1 parameter.

java/api/src/main/java/io/ray/api/function/RayFuncVoid2.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 2 parameters.

java/api/src/main/java/io/ray/api/function/RayFuncVoid3.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 3 parameters.

java/api/src/main/java/io/ray/api/function/RayFuncVoid4.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 4 parameters.

java/api/src/main/java/io/ray/api/function/RayFuncVoid5.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 5 parameters.

java/api/src/main/java/io/ray/api/function/RayFuncVoid6.java

@@ -1,6 +1,6 @@
 // generated automatically, do not modify.
 
-package org.ray.api.function;
+package io.ray.api.function;
 
 /**
  * Functional interface for a remote function that has 6 parameters.

java/api/src/main/java/io/ray/api/id/ActorId.java

@@ -1,4 +1,4 @@
-package org.ray.api.id;
+package io.ray.api.id;
 
 import java.io.Serializable;
 import java.nio.ByteBuffer;

java/api/src/main/java/io/ray/api/id/BaseId.java

@@ -1,4 +1,4 @@
-package org.ray.api.id;
+package io.ray.api.id;
 
 import java.io.Serializable;
 import java.nio.ByteBuffer;

java/api/src/main/java/io/ray/api/id/JobId.java

@@ -1,4 +1,4 @@
-package org.ray.api.id;
+package io.ray.api.id;
 
 import java.io.Serializable;
 import java.nio.ByteBuffer;

java/api/src/main/java/io/ray/api/id/ObjectId.java

@@ -1,4 +1,4 @@
-package org.ray.api.id;
+package io.ray.api.id;
 
 import java.io.Serializable;
 import java.nio.ByteBuffer;

java/api/src/main/java/io/ray/api/id/TaskId.java

@@ -1,4 +1,4 @@
-package org.ray.api.id;
+package io.ray.api.id;
 
 import java.io.Serializable;
 import java.nio.ByteBuffer;

java/api/src/main/java/io/ray/api/id/UniqueId.java

@@ -1,4 +1,4 @@
-package org.ray.api.id;
+package io.ray.api.id;
 
 import java.io.Serializable;
 import java.nio.ByteBuffer;

java/api/src/main/java/io/ray/api/options/ActorCreationOptions.java

@@ -1,4 +1,4 @@
-package org.ray.api.options;
+package io.ray.api.options;
 
 import java.util.HashMap;
 import java.util.Map;

java/api/src/main/java/io/ray/api/options/BaseTaskOptions.java

@@ -1,4 +1,4 @@
-package org.ray.api.options;
+package io.ray.api.options;
 
 import java.util.HashMap;
 import java.util.Map;

java/api/src/main/java/io/ray/api/options/CallOptions.java

@@ -1,4 +1,4 @@
-package org.ray.api.options;
+package io.ray.api.options;
 
 import java.util.HashMap;
 import java.util.Map;

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

@@ -1,21 +1,21 @@
-package org.ray.api.runtime;
+package io.ray.api.runtime;
 
+import io.ray.api.BaseActor;
+import io.ray.api.RayActor;
+import io.ray.api.RayObject;
+import io.ray.api.RayPyActor;
+import io.ray.api.WaitResult;
+import io.ray.api.function.PyActorClass;
+import io.ray.api.function.PyActorMethod;
+import io.ray.api.function.PyRemoteFunction;
+import io.ray.api.function.RayFunc;
+import io.ray.api.id.ObjectId;
+import io.ray.api.id.UniqueId;
+import io.ray.api.options.ActorCreationOptions;
+import io.ray.api.options.CallOptions;
+import io.ray.api.runtimecontext.RuntimeContext;
 import java.util.List;
 import java.util.concurrent.Callable;
-import org.ray.api.BaseActor;
-import org.ray.api.RayActor;
-import org.ray.api.RayObject;
-import org.ray.api.RayPyActor;
-import org.ray.api.WaitResult;
-import org.ray.api.function.PyActorClass;
-import org.ray.api.function.PyActorMethod;
-import org.ray.api.function.PyRemoteFunction;
-import org.ray.api.function.RayFunc;
-import org.ray.api.id.ObjectId;
-import org.ray.api.id.UniqueId;
-import org.ray.api.options.ActorCreationOptions;
-import org.ray.api.options.CallOptions;
-import org.ray.api.runtimecontext.RuntimeContext;
 
 /**
  * Base interface of a Ray runtime.

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

@@ -1,4 +1,4 @@
-package org.ray.api.runtime;
+package io.ray.api.runtime;
 
 /**
  * A factory that produces a RayRuntime instance.

java/api/src/main/java/io/ray/api/runtimecontext/NodeInfo.java

@@ -1,7 +1,7 @@
-package org.ray.api.runtimecontext;
+package io.ray.api.runtimecontext;
 
+import io.ray.api.id.UniqueId;
 import java.util.Map;
-import org.ray.api.id.UniqueId;
 
 /**
  * A class that represents the information of a node.

java/api/src/main/java/io/ray/api/runtimecontext/RuntimeContext.java

@@ -1,8 +1,8 @@
-package org.ray.api.runtimecontext;
+package io.ray.api.runtimecontext;
 
+import io.ray.api.id.ActorId;
+import io.ray.api.id.JobId;
 import java.util.List;
-import org.ray.api.id.ActorId;
-import org.ray.api.id.JobId;
 
 /**
  * A class used for getting information of Ray runtime.

java/checkstyle-suppressions.xml

@@ -13,5 +13,5 @@
   <suppress checks=".*" files="RayCall.java"/>
   <suppress checks=".*" files="ActorCall.java"/>
   <!-- suppress check for flatbuffer-generated files. -->
-  <suppress checks=".*" files="org[\\/]ray[\\/]runtime[\\/]generated[\\/]" />
+  <suppress checks=".*" files="io[\\/]ray[\\/]runtime[\\/]generated[\\/]" />
 </suppressions>

java/modify_generated_java_flatbuffers_files.py

@@ -13,7 +13,7 @@ RAY_HOME: The root directory of Ray project.
 """
 
 # constants declarations
-PACKAGE_DECLARATION = "package org.ray.runtime.generated;"
+PACKAGE_DECLARATION = "package io.ray.runtime.generated;"
 
 
 def add_package(file):
@@ -41,5 +41,5 @@ def add_package_declarations(generated_root_path):
 if __name__ == "__main__":
     ray_home = sys.argv[1]
     root_path = os.path.join(
-        ray_home, "java/runtime/src/main/java/org/ray/runtime/generated")
+        ray_home, "java/runtime/src/main/java/io/ray/runtime/generated")
     add_package_declarations(root_path)

java/pom.xml

@@ -5,7 +5,7 @@
   <modelVersion>4.0.0</modelVersion>
   <packaging>pom</packaging>
 
-  <groupId>org.ray</groupId>
+  <groupId>io.ray</groupId>
   <artifactId>ray-superpom</artifactId>
   <version>0.1-SNAPSHOT</version>
   <modules>

java/runtime/pom.xml

@@ -4,7 +4,7 @@
   xmlns="http://maven.apache.org/POM/4.0.0"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <parent>
-    <groupId>org.ray</groupId>
+    <groupId>io.ray</groupId>
     <artifactId>ray-superpom</artifactId>
     <version>0.1-SNAPSHOT</version>
   </parent>
@@ -18,7 +18,7 @@
 
   <dependencies>
     <dependency>
-      <groupId>org.ray</groupId>
+      <groupId>io.ray</groupId>
       <artifactId>ray-api</artifactId>
       <version>${project.version}</version>
     </dependency>

java/runtime/pom_template.xml

@@ -4,7 +4,7 @@
   xmlns="http://maven.apache.org/POM/4.0.0"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <parent>
-    <groupId>org.ray</groupId>
+    <groupId>io.ray</groupId>
     <artifactId>ray-superpom</artifactId>
     <version>0.1-SNAPSHOT</version>
   </parent>
@@ -18,7 +18,7 @@
 
   <dependencies>
     <dependency>
-      <groupId>org.ray</groupId>
+      <groupId>io.ray</groupId>
       <artifactId>ray-api</artifactId>
       <version>${project.version}</version>
     </dependency>

java/runtime/src/main/java/io/ray/runtime/AbstractRayRuntime.java

@@ -1,41 +1,41 @@
-package org.ray.runtime;
+package io.ray.runtime;
 
 import com.google.common.base.Preconditions;
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableList;
+import io.ray.api.BaseActor;
+import io.ray.api.RayActor;
+import io.ray.api.RayObject;
+import io.ray.api.RayPyActor;
+import io.ray.api.WaitResult;
+import io.ray.api.exception.RayException;
+import io.ray.api.function.PyActorClass;
+import io.ray.api.function.PyActorMethod;
+import io.ray.api.function.PyRemoteFunction;
+import io.ray.api.function.RayFunc;
+import io.ray.api.id.ObjectId;
+import io.ray.api.options.ActorCreationOptions;
+import io.ray.api.options.CallOptions;
+import io.ray.api.runtimecontext.RuntimeContext;
+import io.ray.runtime.config.RayConfig;
+import io.ray.runtime.context.RuntimeContextImpl;
+import io.ray.runtime.context.WorkerContext;
+import io.ray.runtime.functionmanager.FunctionDescriptor;
+import io.ray.runtime.functionmanager.FunctionManager;
+import io.ray.runtime.functionmanager.PyFunctionDescriptor;
+import io.ray.runtime.functionmanager.RayFunction;
+import io.ray.runtime.gcs.GcsClient;
+import io.ray.runtime.generated.Common;
+import io.ray.runtime.generated.Common.Language;
+import io.ray.runtime.object.ObjectStore;
+import io.ray.runtime.object.RayObjectImpl;
+import io.ray.runtime.task.ArgumentsBuilder;
+import io.ray.runtime.task.FunctionArg;
+import io.ray.runtime.task.TaskExecutor;
+import io.ray.runtime.task.TaskSubmitter;
 import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.Callable;
-import org.ray.api.BaseActor;
-import org.ray.api.RayActor;
-import org.ray.api.RayObject;
-import org.ray.api.RayPyActor;
-import org.ray.api.WaitResult;
-import org.ray.api.exception.RayException;
-import org.ray.api.function.PyActorClass;
-import org.ray.api.function.PyActorMethod;
-import org.ray.api.function.PyRemoteFunction;
-import org.ray.api.function.RayFunc;
-import org.ray.api.id.ObjectId;
-import org.ray.api.options.ActorCreationOptions;
-import org.ray.api.options.CallOptions;
-import org.ray.api.runtimecontext.RuntimeContext;
-import org.ray.runtime.config.RayConfig;
-import org.ray.runtime.context.RuntimeContextImpl;
-import org.ray.runtime.context.WorkerContext;
-import org.ray.runtime.functionmanager.FunctionDescriptor;
-import org.ray.runtime.functionmanager.FunctionManager;
-import org.ray.runtime.functionmanager.PyFunctionDescriptor;
-import org.ray.runtime.functionmanager.RayFunction;
-import org.ray.runtime.gcs.GcsClient;
-import org.ray.runtime.generated.Common.Language;
-import org.ray.runtime.generated.Common.WorkerType;
-import org.ray.runtime.object.ObjectStore;
-import org.ray.runtime.object.RayObjectImpl;
-import org.ray.runtime.task.ArgumentsBuilder;
-import org.ray.runtime.task.FunctionArg;
-import org.ray.runtime.task.TaskExecutor;
-import org.ray.runtime.task.TaskSubmitter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -63,7 +63,7 @@ public abstract class AbstractRayRuntime implements RayRuntimeInternal {
 
   public AbstractRayRuntime(RayConfig rayConfig) {
     this.rayConfig = rayConfig;
-    setIsContextSet(rayConfig.workerMode == WorkerType.DRIVER);
+    setIsContextSet(rayConfig.workerMode == Common.WorkerType.DRIVER);
     functionManager = new FunctionManager(rayConfig.jobResourcePath);
     runtimeContext = new RuntimeContextImpl(this);
   }

java/runtime/src/main/java/io/ray/runtime/DefaultRayRuntimeFactory.java

@@ -1,9 +1,9 @@
-package org.ray.runtime;
+package io.ray.runtime;
 
-import org.ray.api.runtime.RayRuntime;
-import org.ray.api.runtime.RayRuntimeFactory;
-import org.ray.runtime.config.RayConfig;
-import org.ray.runtime.config.RunMode;
+import io.ray.api.runtime.RayRuntime;
+import io.ray.api.runtime.RayRuntimeFactory;
+import io.ray.runtime.config.RayConfig;
+import io.ray.runtime.config.RunMode;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/RayDevRuntime.java

@@ -1,15 +1,15 @@
-package org.ray.runtime;
+package io.ray.runtime;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.BaseActor;
+import io.ray.api.id.JobId;
+import io.ray.api.id.UniqueId;
+import io.ray.runtime.config.RayConfig;
+import io.ray.runtime.context.LocalModeWorkerContext;
+import io.ray.runtime.object.LocalModeObjectStore;
+import io.ray.runtime.task.LocalModeTaskExecutor;
+import io.ray.runtime.task.LocalModeTaskSubmitter;
 import java.util.concurrent.atomic.AtomicInteger;
-import org.ray.api.BaseActor;
-import org.ray.api.id.JobId;
-import org.ray.api.id.UniqueId;
-import org.ray.runtime.config.RayConfig;
-import org.ray.runtime.context.LocalModeWorkerContext;
-import org.ray.runtime.object.LocalModeObjectStore;
-import org.ray.runtime.task.LocalModeTaskExecutor;
-import org.ray.runtime.task.LocalModeTaskSubmitter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/RayNativeRuntime.java

@@ -1,25 +1,25 @@
-package org.ray.runtime;
+package io.ray.runtime;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.BaseActor;
+import io.ray.api.id.JobId;
+import io.ray.api.id.UniqueId;
+import io.ray.runtime.config.RayConfig;
+import io.ray.runtime.context.NativeWorkerContext;
+import io.ray.runtime.gcs.GcsClient;
+import io.ray.runtime.gcs.GcsClientOptions;
+import io.ray.runtime.gcs.RedisClient;
+import io.ray.runtime.generated.Common.WorkerType;
+import io.ray.runtime.object.NativeObjectStore;
+import io.ray.runtime.runner.RunManager;
+import io.ray.runtime.task.NativeTaskExecutor;
+import io.ray.runtime.task.NativeTaskSubmitter;
+import io.ray.runtime.task.TaskExecutor;
+import io.ray.runtime.util.JniUtils;
 import java.io.File;
 import java.io.IOException;
 import java.util.Map;
 import org.apache.commons.io.FileUtils;
-import org.ray.api.BaseActor;
-import org.ray.api.id.JobId;
-import org.ray.api.id.UniqueId;
-import org.ray.runtime.config.RayConfig;
-import org.ray.runtime.context.NativeWorkerContext;
-import org.ray.runtime.gcs.GcsClient;
-import org.ray.runtime.gcs.GcsClientOptions;
-import org.ray.runtime.gcs.RedisClient;
-import org.ray.runtime.generated.Common.WorkerType;
-import org.ray.runtime.object.NativeObjectStore;
-import org.ray.runtime.runner.RunManager;
-import org.ray.runtime.task.NativeTaskExecutor;
-import org.ray.runtime.task.NativeTaskSubmitter;
-import org.ray.runtime.task.TaskExecutor;
-import org.ray.runtime.util.JniUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/RayRuntimeInternal.java

@@ -1,11 +1,11 @@
-package org.ray.runtime;
+package io.ray.runtime;
 
-import org.ray.api.runtime.RayRuntime;
-import org.ray.runtime.config.RayConfig;
-import org.ray.runtime.context.WorkerContext;
-import org.ray.runtime.functionmanager.FunctionManager;
-import org.ray.runtime.gcs.GcsClient;
-import org.ray.runtime.object.ObjectStore;
+import io.ray.api.runtime.RayRuntime;
+import io.ray.runtime.config.RayConfig;
+import io.ray.runtime.context.WorkerContext;
+import io.ray.runtime.functionmanager.FunctionManager;
+import io.ray.runtime.gcs.GcsClient;
+import io.ray.runtime.object.ObjectStore;
 
 /**
  * This interface is required to make {@link RayRuntimeProxy} work.

java/runtime/src/main/java/io/ray/runtime/RayRuntimeProxy.java

@@ -1,11 +1,11 @@
-package org.ray.runtime;
+package io.ray.runtime;
 
+import io.ray.api.exception.RayException;
+import io.ray.api.runtime.RayRuntime;
+import io.ray.runtime.config.RunMode;
 import java.lang.reflect.InvocationHandler;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
-import org.ray.api.exception.RayException;
-import org.ray.api.runtime.RayRuntime;
-import org.ray.runtime.config.RunMode;
 
 /**
  * Protect a ray runtime with context checks for all methods of {@link RayRuntime} (except {@link

java/runtime/src/main/java/io/ray/runtime/actor/LocalModeRayActor.java

@@ -1,13 +1,13 @@
-package org.ray.runtime.actor;
+package io.ray.runtime.actor;
 
+import io.ray.api.RayActor;
+import io.ray.api.id.ActorId;
+import io.ray.api.id.ObjectId;
 import java.io.Externalizable;
 import java.io.IOException;
 import java.io.ObjectInput;
 import java.io.ObjectOutput;
 import java.util.concurrent.atomic.AtomicReference;
-import org.ray.api.RayActor;
-import org.ray.api.id.ActorId;
-import org.ray.api.id.ObjectId;
 
 /**
  * Implementation of actor handle for local mode.

java/runtime/src/main/java/io/ray/runtime/actor/NativeRayActor.java

@@ -1,14 +1,14 @@
-package org.ray.runtime.actor;
+package io.ray.runtime.actor;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.BaseActor;
+import io.ray.api.id.ActorId;
+import io.ray.runtime.generated.Common.Language;
 import java.io.Externalizable;
 import java.io.IOException;
 import java.io.ObjectInput;
 import java.io.ObjectOutput;
 import java.util.List;
-import org.ray.api.BaseActor;
-import org.ray.api.id.ActorId;
-import org.ray.runtime.generated.Common.Language;
 
 /**
  * Abstract and language-independent implementation of actor handle for cluster mode. This is a

java/runtime/src/main/java/io/ray/runtime/actor/NativeRayActorSerializer.java

@@ -1,4 +1,4 @@
-package org.ray.runtime.actor;
+package io.ray.runtime.actor;
 
 import java.io.IOException;
 import org.nustaq.serialization.FSTBasicObjectSerializer;

java/runtime/src/main/java/io/ray/runtime/actor/NativeRayJavaActor.java

@@ -1,10 +1,10 @@
-package org.ray.runtime.actor;
+package io.ray.runtime.actor;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.RayActor;
+import io.ray.runtime.generated.Common.Language;
 import java.io.IOException;
 import java.io.ObjectInput;
-import org.ray.api.RayActor;
-import org.ray.runtime.generated.Common.Language;
 
 /**
  * Java implementation of actor handle for cluster mode.

java/runtime/src/main/java/io/ray/runtime/actor/NativeRayPyActor.java

@@ -1,10 +1,10 @@
-package org.ray.runtime.actor;
+package io.ray.runtime.actor;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.RayPyActor;
+import io.ray.runtime.generated.Common.Language;
 import java.io.IOException;
 import java.io.ObjectInput;
-import org.ray.api.RayPyActor;
-import org.ray.runtime.generated.Common.Language;
 
 /**
  * Python actor handle implementation for cluster mode.

java/runtime/src/main/java/io/ray/runtime/config/RayConfig.java

@@ -1,4 +1,4 @@
-package org.ray.runtime.config;
+package io.ray.runtime.config;
 
 import com.google.common.base.Preconditions;
 import com.google.common.base.Strings;
@@ -7,6 +7,10 @@ import com.typesafe.config.Config;
 import com.typesafe.config.ConfigException;
 import com.typesafe.config.ConfigFactory;
 import com.typesafe.config.ConfigValue;
+import io.ray.api.id.JobId;
+import io.ray.runtime.generated.Common.WorkerType;
+import io.ray.runtime.util.NetworkUtil;
+import io.ray.runtime.util.ResourceUtil;
 import java.io.File;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
@@ -14,10 +18,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Random;
-import org.ray.api.id.JobId;
-import org.ray.runtime.generated.Common.WorkerType;
-import org.ray.runtime.util.NetworkUtil;
-import org.ray.runtime.util.ResourceUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/config/RunMode.java

@@ -1,4 +1,4 @@
-package org.ray.runtime.config;
+package io.ray.runtime.config;
 
 public enum RunMode {
 

java/runtime/src/main/java/io/ray/runtime/context/LocalModeWorkerContext.java

@@ -1,13 +1,13 @@
-package org.ray.runtime.context;
+package io.ray.runtime.context;
 
 import com.google.common.base.Preconditions;
-import org.ray.api.id.ActorId;
-import org.ray.api.id.JobId;
-import org.ray.api.id.TaskId;
-import org.ray.api.id.UniqueId;
-import org.ray.runtime.generated.Common.TaskSpec;
-import org.ray.runtime.generated.Common.TaskType;
-import org.ray.runtime.task.LocalModeTaskSubmitter;
+import io.ray.api.id.ActorId;
+import io.ray.api.id.JobId;
+import io.ray.api.id.TaskId;
+import io.ray.api.id.UniqueId;
+import io.ray.runtime.generated.Common.TaskSpec;
+import io.ray.runtime.generated.Common.TaskType;
+import io.ray.runtime.task.LocalModeTaskSubmitter;
 
 /**
  * Worker context for local mode.

java/runtime/src/main/java/io/ray/runtime/context/NativeWorkerContext.java

@@ -1,11 +1,11 @@
-package org.ray.runtime.context;
+package io.ray.runtime.context;
 
+import io.ray.api.id.ActorId;
+import io.ray.api.id.JobId;
+import io.ray.api.id.TaskId;
+import io.ray.api.id.UniqueId;
+import io.ray.runtime.generated.Common.TaskType;
 import java.nio.ByteBuffer;
-import org.ray.api.id.ActorId;
-import org.ray.api.id.JobId;
-import org.ray.api.id.TaskId;
-import org.ray.api.id.UniqueId;
-import org.ray.runtime.generated.Common.TaskType;
 
 /**
  * Worker context for cluster mode. This is a wrapper class for worker context of core worker.

java/runtime/src/main/java/io/ray/runtime/context/RuntimeContextImpl.java

@@ -1,14 +1,14 @@
-package org.ray.runtime.context;
+package io.ray.runtime.context;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.id.ActorId;
+import io.ray.api.id.JobId;
+import io.ray.api.runtimecontext.NodeInfo;
+import io.ray.api.runtimecontext.RuntimeContext;
+import io.ray.runtime.RayRuntimeInternal;
+import io.ray.runtime.config.RunMode;
+import io.ray.runtime.generated.Common.TaskType;
 import java.util.List;
-import org.ray.api.id.ActorId;
-import org.ray.api.id.JobId;
-import org.ray.api.runtimecontext.NodeInfo;
-import org.ray.api.runtimecontext.RuntimeContext;
-import org.ray.runtime.RayRuntimeInternal;
-import org.ray.runtime.config.RunMode;
-import org.ray.runtime.generated.Common.TaskType;
 
 public class RuntimeContextImpl implements RuntimeContext {
 

java/runtime/src/main/java/io/ray/runtime/context/WorkerContext.java

@@ -1,11 +1,10 @@
-package org.ray.runtime.context;
+package io.ray.runtime.context;
 
-import org.ray.api.id.ActorId;
-import org.ray.api.id.JobId;
-import org.ray.api.id.TaskId;
-import org.ray.api.id.UniqueId;
-import org.ray.runtime.generated.Common.TaskType;
-import org.ray.runtime.serializer.Serializer;
+import io.ray.api.id.ActorId;
+import io.ray.api.id.JobId;
+import io.ray.api.id.TaskId;
+import io.ray.api.id.UniqueId;
+import io.ray.runtime.generated.Common.TaskType;
 
 /**
  * The context of worker.

java/runtime/src/main/java/io/ray/runtime/functionmanager/FunctionDescriptor.java

@@ -1,7 +1,7 @@
-package org.ray.runtime.functionmanager;
+package io.ray.runtime.functionmanager;
 
+import io.ray.runtime.generated.Common.Language;
 import java.util.List;
-import org.ray.runtime.generated.Common.Language;
 
 /**
  * Base interface of a Ray task's function descriptor.

java/runtime/src/main/java/io/ray/runtime/functionmanager/FunctionManager.java

@@ -1,6 +1,9 @@
-package org.ray.runtime.functionmanager;
+package io.ray.runtime.functionmanager;
 
 import com.google.common.base.Strings;
+import io.ray.api.function.RayFunc;
+import io.ray.api.id.JobId;
+import io.ray.runtime.util.LambdaUtils;
 import java.io.File;
 import java.lang.invoke.SerializedLambda;
 import java.lang.reflect.Constructor;
@@ -25,9 +28,6 @@ import org.apache.commons.io.filefilter.RegexFileFilter;
 import org.apache.commons.lang3.tuple.ImmutablePair;
 import org.apache.commons.lang3.tuple.Pair;
 import org.objectweb.asm.Type;
-import org.ray.api.function.RayFunc;
-import org.ray.api.id.JobId;
-import org.ray.runtime.util.LambdaUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/functionmanager/JavaFunctionDescriptor.java

@@ -1,9 +1,9 @@
-package org.ray.runtime.functionmanager;
+package io.ray.runtime.functionmanager;
 
 import com.google.common.base.Objects;
 import com.google.common.collect.ImmutableList;
+import io.ray.runtime.generated.Common.Language;
 import java.util.List;
-import org.ray.runtime.generated.Common.Language;
 
 /**
  * Represents metadata of Java function.

java/runtime/src/main/java/io/ray/runtime/functionmanager/PyFunctionDescriptor.java

@@ -1,8 +1,8 @@
-package org.ray.runtime.functionmanager;
+package io.ray.runtime.functionmanager;
 
+import io.ray.runtime.generated.Common.Language;
 import java.util.Arrays;
 import java.util.List;
-import org.ray.runtime.generated.Common.Language;
 
 /**
  * Represents metadata of a Python function.

java/runtime/src/main/java/io/ray/runtime/functionmanager/RayFunction.java

@@ -1,4 +1,4 @@
-package org.ray.runtime.functionmanager;
+package io.ray.runtime.functionmanager;
 
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Executable;

java/runtime/src/main/java/io/ray/runtime/gcs/GcsClient.java

@@ -1,25 +1,25 @@
-package org.ray.runtime.gcs;
+package io.ray.runtime.gcs;
 
 import com.google.common.base.Preconditions;
 import com.google.protobuf.InvalidProtocolBufferException;
+import io.ray.api.Checkpointable.Checkpoint;
+import io.ray.api.id.ActorId;
+import io.ray.api.id.BaseId;
+import io.ray.api.id.JobId;
+import io.ray.api.id.TaskId;
+import io.ray.api.id.UniqueId;
+import io.ray.api.runtimecontext.NodeInfo;
+import io.ray.runtime.generated.Gcs;
+import io.ray.runtime.generated.Gcs.ActorCheckpointIdData;
+import io.ray.runtime.generated.Gcs.GcsNodeInfo;
+import io.ray.runtime.generated.Gcs.TablePrefix;
+import io.ray.runtime.util.IdUtil;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 import org.apache.commons.lang3.ArrayUtils;
-import org.ray.api.Checkpointable.Checkpoint;
-import org.ray.api.id.ActorId;
-import org.ray.api.id.BaseId;
-import org.ray.api.id.JobId;
-import org.ray.api.id.TaskId;
-import org.ray.api.id.UniqueId;
-import org.ray.api.runtimecontext.NodeInfo;
-import org.ray.runtime.generated.Gcs;
-import org.ray.runtime.generated.Gcs.ActorCheckpointIdData;
-import org.ray.runtime.generated.Gcs.GcsNodeInfo;
-import org.ray.runtime.generated.Gcs.TablePrefix;
-import org.ray.runtime.util.IdUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/gcs/GcsClientOptions.java

@@ -1,6 +1,6 @@
-package org.ray.runtime.gcs;
+package io.ray.runtime.gcs;
 
-import org.ray.runtime.config.RayConfig;
+import io.ray.runtime.config.RayConfig;
 
 /**
  * Options to create GCS Client.

java/runtime/src/main/java/io/ray/runtime/gcs/RedisClient.java

@@ -1,4 +1,4 @@
-package org.ray.runtime.gcs;
+package io.ray.runtime.gcs;
 
 import com.google.common.base.Strings;
 import java.util.List;

java/runtime/src/main/java/io/ray/runtime/object/LocalModeObjectStore.java

@@ -1,14 +1,14 @@
-package org.ray.runtime.object;
+package io.ray.runtime.object;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.id.ObjectId;
+import io.ray.runtime.context.WorkerContext;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.Consumer;
 import java.util.stream.Collectors;
-import org.ray.api.id.ObjectId;
-import org.ray.runtime.context.WorkerContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/object/NativeObjectStore.java

@@ -1,10 +1,10 @@
-package org.ray.runtime.object;
+package io.ray.runtime.object;
 
+import io.ray.api.id.BaseId;
+import io.ray.api.id.ObjectId;
+import io.ray.runtime.context.WorkerContext;
 import java.util.List;
 import java.util.stream.Collectors;
-import org.ray.api.id.BaseId;
-import org.ray.api.id.ObjectId;
-import org.ray.runtime.context.WorkerContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/object/NativeRayObject.java

@@ -1,4 +1,4 @@
-package org.ray.runtime.object;
+package io.ray.runtime.object;
 
 import com.google.common.base.Preconditions;
 

java/runtime/src/main/java/io/ray/runtime/object/ObjectSerializer.java

@@ -1,15 +1,14 @@
-package org.ray.runtime.object;
+package io.ray.runtime.object;
 
+import io.ray.api.exception.RayActorException;
+import io.ray.api.exception.RayTaskException;
+import io.ray.api.exception.RayWorkerException;
+import io.ray.api.exception.UnreconstructableException;
+import io.ray.api.id.ObjectId;
+import io.ray.runtime.generated.Gcs.ErrorType;
+import io.ray.runtime.serializer.Serializer;
 import java.util.Arrays;
-
 import org.apache.commons.lang3.tuple.Pair;
-import org.ray.api.exception.RayActorException;
-import org.ray.api.exception.RayTaskException;
-import org.ray.api.exception.RayWorkerException;
-import org.ray.api.exception.UnreconstructableException;
-import org.ray.api.id.ObjectId;
-import org.ray.runtime.generated.Gcs.ErrorType;
-import org.ray.runtime.serializer.Serializer;
 
 /**
  * Serialize to and deserialize from {@link NativeRayObject}. Metadata is generated during

java/runtime/src/main/java/io/ray/runtime/object/ObjectStore.java

@@ -1,16 +1,16 @@
-package org.ray.runtime.object;
+package io.ray.runtime.object;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.RayObject;
+import io.ray.api.WaitResult;
+import io.ray.api.exception.RayException;
+import io.ray.api.id.ObjectId;
+import io.ray.runtime.context.WorkerContext;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
 import java.util.stream.Collectors;
-import org.ray.api.RayObject;
-import org.ray.api.WaitResult;
-import org.ray.api.exception.RayException;
-import org.ray.api.id.ObjectId;
-import org.ray.runtime.context.WorkerContext;
 
 /**
  * A class that is used to put/get objects to/from the object store.

java/runtime/src/main/java/io/ray/runtime/object/RayObjectImpl.java

@@ -1,11 +1,10 @@
-package org.ray.runtime.object;
+package io.ray.runtime.object;
 
+import io.ray.api.Ray;
+import io.ray.api.RayObject;
+import io.ray.api.id.ObjectId;
 import java.io.Serializable;
 
-import org.ray.api.Ray;
-import org.ray.api.RayObject;
-import org.ray.api.id.ObjectId;
-
 /**
  * Implementation of {@link RayObject}.
  */

java/runtime/src/main/java/io/ray/runtime/runner/RunManager.java

@@ -1,10 +1,13 @@
-package org.ray.runtime.runner;
+package io.ray.runtime.runner;
 
 import com.google.common.base.Joiner;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
+import io.ray.runtime.config.RayConfig;
+import io.ray.runtime.util.BinaryFileUtil;
+import io.ray.runtime.util.ResourceUtil;
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
@@ -20,9 +23,6 @@ import java.util.stream.Collectors;
 import java.util.stream.Stream;
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.lang3.tuple.Pair;
-import org.ray.runtime.config.RayConfig;
-import org.ray.runtime.util.BinaryFileUtil;
-import org.ray.runtime.util.ResourceUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import redis.clients.jedis.Jedis;
@@ -37,7 +37,7 @@ public class RunManager {
   private static final DateTimeFormatter DATE_TIME_FORMATTER =
       DateTimeFormatter.ofPattern("YYYY-MM-dd_HH-mm-ss");
 
-  private static final String WORKER_CLASS = "org.ray.runtime.runner.worker.DefaultWorker";
+  private static final String WORKER_CLASS = "io.ray.runtime.runner.worker.DefaultWorker";
 
   private static final String SESSION_LATEST = "session_latest";
 

java/runtime/src/main/java/io/ray/runtime/runner/worker/DefaultDriver.java

@@ -1,6 +1,6 @@
-package org.ray.runtime.runner.worker;
+package io.ray.runtime.runner.worker;
 
-import org.ray.api.Ray;
+import io.ray.api.Ray;
 
 /**
  * The main function of DefaultDriver.

java/runtime/src/main/java/io/ray/runtime/runner/worker/DefaultWorker.java

@@ -1,7 +1,7 @@
-package org.ray.runtime.runner.worker;
+package io.ray.runtime.runner.worker;
 
-import org.ray.api.Ray;
-import org.ray.runtime.RayRuntimeInternal;
+import io.ray.api.Ray;
+import io.ray.runtime.RayRuntimeInternal;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

java/runtime/src/main/java/io/ray/runtime/serializer/FstSerializer.java

@@ -1,8 +1,8 @@
-package org.ray.runtime.serializer;
+package io.ray.runtime.serializer;
 
+import io.ray.runtime.actor.NativeRayActor;
+import io.ray.runtime.actor.NativeRayActorSerializer;
 import org.nustaq.serialization.FSTConfiguration;
-import org.ray.runtime.actor.NativeRayActor;
-import org.ray.runtime.actor.NativeRayActorSerializer;
 
 /**
  * Java object serialization TODO: use others (e.g. Arrow) for higher performance

java/runtime/src/main/java/io/ray/runtime/serializer/MessagePackSerializer.java

@@ -1,4 +1,4 @@
-package org.ray.runtime.serializer;
+package io.ray.runtime.serializer;
 
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;

java/runtime/src/main/java/io/ray/runtime/serializer/Serializer.java

@@ -1,4 +1,4 @@
-package org.ray.runtime.serializer;
+package io.ray.runtime.serializer;
 
 import org.apache.commons.lang3.tuple.Pair;
 

java/runtime/src/main/java/io/ray/runtime/task/ArgumentsBuilder.java

@@ -1,15 +1,15 @@
-package org.ray.runtime.task;
+package io.ray.runtime.task;
 
+import io.ray.api.Ray;
+import io.ray.api.RayObject;
+import io.ray.api.id.ObjectId;
+import io.ray.runtime.RayRuntimeInternal;
+import io.ray.runtime.generated.Common.Language;
+import io.ray.runtime.object.NativeRayObject;
+import io.ray.runtime.object.ObjectSerializer;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
-import org.ray.api.Ray;
-import org.ray.api.RayObject;
-import org.ray.api.id.ObjectId;
-import org.ray.runtime.RayRuntimeInternal;
-import org.ray.runtime.generated.Common.Language;
-import org.ray.runtime.object.NativeRayObject;
-import org.ray.runtime.object.ObjectSerializer;
 
 /**
  * Helper methods to convert arguments from/to objects.

java/runtime/src/main/java/io/ray/runtime/task/FunctionArg.java

@@ -1,8 +1,8 @@
-package org.ray.runtime.task;
+package io.ray.runtime.task;
 
 import com.google.common.base.Preconditions;
-import org.ray.api.id.ObjectId;
-import org.ray.runtime.object.NativeRayObject;
+import io.ray.api.id.ObjectId;
+import io.ray.runtime.object.NativeRayObject;
 
 /**
  * Represents a function argument in task spec.

java/runtime/src/main/java/io/ray/runtime/task/LocalModeTaskExecutor.java

@@ -1,14 +1,13 @@
-package org.ray.runtime.task;
+package io.ray.runtime.task;
 
-import org.ray.api.id.ActorId;
-import org.ray.api.id.UniqueId;
-import org.ray.runtime.RayRuntimeInternal;
-import org.ray.runtime.task.LocalModeTaskExecutor.LocalActorContext;
+import io.ray.api.id.ActorId;
+import io.ray.api.id.UniqueId;
+import io.ray.runtime.RayRuntimeInternal;
 
 /**
  * Task executor for local mode.
  */
-public class LocalModeTaskExecutor extends TaskExecutor<LocalActorContext> {
+public class LocalModeTaskExecutor extends TaskExecutor<LocalModeTaskExecutor.LocalActorContext> {
 
   static class LocalActorContext extends TaskExecutor.ActorContext {
 

java/runtime/src/main/java/io/ray/runtime/task/LocalModeTaskSubmitter.java

@@ -1,8 +1,29 @@
-package org.ray.runtime.task;
+package io.ray.runtime.task;
 
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
 import com.google.protobuf.ByteString;
+import io.ray.api.BaseActor;
+import io.ray.api.id.ActorId;
+import io.ray.api.id.ObjectId;
+import io.ray.api.id.TaskId;
+import io.ray.api.id.UniqueId;
+import io.ray.api.options.ActorCreationOptions;
+import io.ray.api.options.CallOptions;
+import io.ray.runtime.RayRuntimeInternal;
+import io.ray.runtime.actor.LocalModeRayActor;
+import io.ray.runtime.context.LocalModeWorkerContext;
+import io.ray.runtime.functionmanager.FunctionDescriptor;
+import io.ray.runtime.functionmanager.JavaFunctionDescriptor;
+import io.ray.runtime.generated.Common;
+import io.ray.runtime.generated.Common.ActorCreationTaskSpec;
+import io.ray.runtime.generated.Common.ActorTaskSpec;
+import io.ray.runtime.generated.Common.Language;
+import io.ray.runtime.generated.Common.TaskArg;
+import io.ray.runtime.generated.Common.TaskSpec;
+import io.ray.runtime.generated.Common.TaskType;
+import io.ray.runtime.object.LocalModeObjectStore;
+import io.ray.runtime.object.NativeRayObject;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -16,28 +37,6 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.stream.Collectors;
-import org.ray.api.BaseActor;
-import org.ray.api.id.ActorId;
-import org.ray.api.id.ObjectId;
-import org.ray.api.id.TaskId;
-import org.ray.api.id.UniqueId;
-import org.ray.api.options.ActorCreationOptions;
-import org.ray.api.options.CallOptions;
-import org.ray.runtime.RayRuntimeInternal;
-import org.ray.runtime.actor.LocalModeRayActor;
-import org.ray.runtime.context.LocalModeWorkerContext;
-import org.ray.runtime.functionmanager.FunctionDescriptor;
-import org.ray.runtime.functionmanager.JavaFunctionDescriptor;
-import org.ray.runtime.generated.Common;
-import org.ray.runtime.generated.Common.ActorCreationTaskSpec;
-import org.ray.runtime.generated.Common.ActorTaskSpec;
-import org.ray.runtime.generated.Common.Language;
-import org.ray.runtime.generated.Common.TaskArg;
-import org.ray.runtime.generated.Common.TaskSpec;
-import org.ray.runtime.generated.Common.TaskType;
-import org.ray.runtime.object.LocalModeObjectStore;
-import org.ray.runtime.object.NativeRayObject;
-import org.ray.runtime.task.TaskExecutor.ActorContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -61,7 +60,7 @@ public class LocalModeTaskSubmitter implements TaskSubmitter {
   private final ExecutorService normalTaskExecutorService;
 
 
-  private final Map<ActorId, ActorContext> actorContexts = new ConcurrentHashMap<>();
+  private final Map<ActorId, TaskExecutor.ActorContext> actorContexts = new ConcurrentHashMap<>();
 
   public LocalModeTaskSubmitter(RayRuntimeInternal runtime, TaskExecutor taskExecutor,
       LocalModeObjectStore objectStore) {
@@ -123,9 +122,9 @@ public class LocalModeTaskSubmitter implements TaskSubmitter {
         .setJobId(
             ByteString.copyFrom(runtime.getRayConfig().getJobId().getBytes()))
         .setTaskId(ByteString.copyFrom(taskIdBytes))
-        .setFunctionDescriptor(org.ray.runtime.generated.Common.FunctionDescriptor.newBuilder()
+        .setFunctionDescriptor(Common.FunctionDescriptor.newBuilder()
                 .setJavaFunctionDescriptor(
-                        org.ray.runtime.generated.Common.JavaFunctionDescriptor.newBuilder()
+                        Common.JavaFunctionDescriptor.newBuilder()
                         .setClassName(functionDescriptorList.get(0))
                         .setFunctionName(functionDescriptorList.get(1))
                         .setSignature(functionDescriptorList.get(2))))
@@ -254,7 +253,7 @@ public class LocalModeTaskSubmitter implements TaskSubmitter {
   }
 
   private void executeTask(TaskSpec taskSpec) {
-    ActorContext actorContext = null;
+    TaskExecutor.ActorContext actorContext = null;
     if (taskSpec.getType() == TaskType.ACTOR_TASK) {
       actorContext = actorContexts.get(getActorId(taskSpec));
       Preconditions.checkNotNull(actorContext);
@@ -300,7 +299,7 @@ public class LocalModeTaskSubmitter implements TaskSubmitter {
   }
 
   private static JavaFunctionDescriptor getJavaFunctionDescriptor(TaskSpec taskSpec) {
-    org.ray.runtime.generated.Common.FunctionDescriptor functionDescriptor =
+    Common.FunctionDescriptor functionDescriptor =
             taskSpec.getFunctionDescriptor();
     if (functionDescriptor.getFunctionDescriptorCase() ==
             Common.FunctionDescriptor.FunctionDescriptorCase.JAVA_FUNCTION_DESCRIPTOR) {

java/runtime/src/main/java/io/ray/runtime/task/NativeTaskExecutor.java

@@ -1,20 +1,19 @@
-package org.ray.runtime.task;
+package io.ray.runtime.task;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.Checkpointable;
+import io.ray.api.Checkpointable.Checkpoint;
+import io.ray.api.Checkpointable.CheckpointContext;
+import io.ray.api.id.ActorId;
+import io.ray.api.id.UniqueId;
+import io.ray.runtime.RayRuntimeInternal;
 import java.util.ArrayList;
 import java.util.List;
-import org.ray.api.Checkpointable;
-import org.ray.api.Checkpointable.Checkpoint;
-import org.ray.api.Checkpointable.CheckpointContext;
-import org.ray.api.id.ActorId;
-import org.ray.api.id.UniqueId;
-import org.ray.runtime.RayRuntimeInternal;
-import org.ray.runtime.task.NativeTaskExecutor.NativeActorContext;
 
 /**
  * Task executor for cluster mode.
  */
-public class NativeTaskExecutor extends TaskExecutor<NativeActorContext> {
+public class NativeTaskExecutor extends TaskExecutor<NativeTaskExecutor.NativeActorContext> {
 
   // TODO(hchen): Use the C++ config.
   private static final int NUM_ACTOR_CHECKPOINTS_TO_KEEP = 20;

java/runtime/src/main/java/io/ray/runtime/task/NativeTaskSubmitter.java

@@ -1,14 +1,14 @@
-package org.ray.runtime.task;
+package io.ray.runtime.task;
 
 import com.google.common.base.Preconditions;
+import io.ray.api.BaseActor;
+import io.ray.api.id.ObjectId;
+import io.ray.api.options.ActorCreationOptions;
+import io.ray.api.options.CallOptions;
+import io.ray.runtime.actor.NativeRayActor;
+import io.ray.runtime.functionmanager.FunctionDescriptor;
 import java.util.List;
 import java.util.stream.Collectors;
-import org.ray.api.BaseActor;
-import org.ray.api.id.ObjectId;
-import org.ray.api.options.ActorCreationOptions;
-import org.ray.api.options.CallOptions;
-import org.ray.runtime.actor.NativeRayActor;
-import org.ray.runtime.functionmanager.FunctionDescriptor;
 
 /**
  * Task submitter for cluster mode. This is a wrapper class for core worker task interface.