[Bazel] Use rules_jvm_external to manage java dependencies (#4615)

WORKSPACE

@@ -1,9 +1,22 @@
 workspace(name = "com_github_ray_project_ray")
 
 load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository", "new_git_repository")
-load("//java:repo.bzl", "java_repositories")
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-java_repositories()
+RULES_JVM_EXTERNAL_TAG = "1.2"
+
+RULES_JVM_EXTERNAL_SHA = "e5c68b87f750309a79f59c2b69ead5c3221ffa54ff9496306937bfa1c9c8c86b"
+
+http_archive(
+    name = "rules_jvm_external",
+    sha256 = RULES_JVM_EXTERNAL_SHA,
+    strip_prefix = "rules_jvm_external-%s" % RULES_JVM_EXTERNAL_TAG,
+    url = "https://github.com/bazelbuild/rules_jvm_external/archive/%s.zip" % RULES_JVM_EXTERNAL_TAG,
+)
+
+load("//java:dependencies.bzl", "gen_java_deps")
+
+gen_java_deps()
 
 git_repository(
     name = "com_github_checkstyle_java",
@@ -11,6 +24,10 @@ git_repository(
     remote = "https://github.com/ruifangChen/checkstyle_java",
 )
 
+load("@com_github_checkstyle_java//:repo.bzl", "checkstyle_deps")
+
+checkstyle_deps()
+
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 git_repository(