fix: Reflect protobuf updates into MODULE.bazel

MODULE.bazel

@@ -4,16 +4,22 @@ module(
     repo_name = "contrib_rules_jvm",
 )
 
+# TODO: This should be read from repositories.bzl, but we can't until this issue is solved:
+# - https://github.com/bazelbuild/bazel/issues/17880
+PROTOBUF_VERSION = "21.7"
+# The java packages are published to maven under a different versioning scheme.
+PROTOBUF_JAVA_VERSION = "3.{}".format(PROTOBUF_VERSION)
+
 bazel_dep(name = "apple_rules_lint", version = "0.3.2")
 bazel_dep(name = "bazel_skylib", version = "1.4.2")
 bazel_dep(name = "bazel_skylib_gazelle_plugin", version = "1.4.2")
 bazel_dep(name = "gazelle", version = "0.31.1", repo_name = "bazel_gazelle")
-bazel_dep(name = "protobuf", version = "21.7", repo_name = "com_google_protobuf")
+bazel_dep(name = "protobuf", version = PROTOBUF_VERSION, repo_name = "com_google_protobuf")
 bazel_dep(name = "rules_cc", version = "0.0.6")
 bazel_dep(name = "rules_go", version = "0.40.1", repo_name = "io_bazel_rules_go")
 bazel_dep(name = "rules_java", version = "6.1.1")
 bazel_dep(name = "rules_jvm_external", version = "5.3")
-bazel_dep(name = "rules_proto", version = "5.3.0-21.7")
+bazel_dep(name = "rules_proto", version = "5.3.0-{}".format(PROTOBUF_VERSION))
 bazel_dep(name = "stardoc", version = "0.5.6", repo_name = "io_bazel_stardoc")
 
 non_module_deps = use_extension("//java/private:non-module-deps.bzl", "non_module_deps")
@@ -119,6 +125,10 @@ maven.install(
         # Spotbugs deps
         "org.slf4j:slf4j-api:1.7.32",
         "org.slf4j:slf4j-jdk14:1.7.32",
+
+        # We explicitly declare a protobuf runtime version
+        # so that it coincides with the one we use to generate the code.
+        "com.google.protobuf:protobuf-java:{}".format(PROTOBUF_JAVA_VERSION),
     ] + IO_GRPC_GRPC_JAVA_ARTIFACTS,
     fail_if_repin_required = True,
     generate_compat_repositories = True,

java/private/non-module-deps.bzl

@@ -1,14 +1,9 @@
 load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+load("//:repositories.bzl", "io_grpc_grpc_java")
 
 def _non_module_dependencies_impl(mctx):
-    maybe(
-        http_archive,
-        name = "io_grpc_grpc_java",
-        sha256 = "b6cfc524647cc680e66989ab22a10b66dc5de8c6d8499f91a7e633634c594c61",
-        strip_prefix = "grpc-java-1.51.1",
-        urls = ["https://github.com/grpc/grpc-java/archive/v1.51.1.tar.gz"],
-    )
+    io_grpc_grpc_java()
 
 non_module_deps = module_extension(
     implementation = _non_module_dependencies_impl,

repositories.bzl

@@ -55,6 +55,9 @@ def contrib_rules_jvm_deps():
     )
 
 def contrib_rules_jvm_gazelle_deps():
+
+    io_grpc_grpc_java()
+
     maybe(
         http_archive,
         name = "bazel_gazelle",
@@ -79,14 +82,6 @@ def contrib_rules_jvm_gazelle_deps():
         url = "https://github.com/bazelbuild/rules_go/releases/download/v0.40.1/rules_go-v0.40.1.zip",
     )
 
-    maybe(
-        http_archive,
-        name = "io_grpc_grpc_java",
-        sha256 = "17dd91014032a147c978ae99582fddd950f5444388eae700cf51eda0326ad2f9",
-        strip_prefix = "grpc-java-1.56.1",
-        urls = ["https://github.com/grpc/grpc-java/archive/v1.56.1.tar.gz"],
-    )
-
     maybe(
         http_archive,
         name = "rules_proto",
@@ -96,3 +91,12 @@ def contrib_rules_jvm_gazelle_deps():
         strip_prefix = "rules_proto-5.3.0-{}".format(PROTOBUF_VERSION),
         url = "https://github.com/bazelbuild/rules_proto/archive/refs/tags/5.3.0-{}.tar.gz".format(PROTOBUF_VERSION),
     )
+
+def io_grpc_grpc_java():
+    maybe(
+        http_archive,
+        name = "io_grpc_grpc_java",
+        sha256 = "17dd91014032a147c978ae99582fddd950f5444388eae700cf51eda0326ad2f9",
+        strip_prefix = "grpc-java-1.56.1",
+        urls = ["https://github.com/grpc/grpc-java/archive/v1.56.1.tar.gz"],
+    )

third_party/protobuf_version.bzl

@@ -1,3 +1,5 @@
+# Please keep in sync with MODULE.bazel until
+# https://github.com/bazelbuild/bazel/issues/17880 is solved.
 PROTOBUF_VERSION = "21.7"
 
 # The java packages are published to maven under a different versioning scheme.