Simplify `java/toolchains/*.bzl`

This is change 3/N of dismantling `@compatibility_proxy`

(ignore-relnotes)

PiperOrigin-RevId: 1010164366
Change-Id: Ic37ea985c5e08d99e8e21d63ec43a1a6c0b72831
diff --git a/java/toolchains/BUILD b/java/toolchains/BUILD
index 2cb6827..d21911c 100644
--- a/java/toolchains/BUILD
+++ b/java/toolchains/BUILD
@@ -17,7 +17,7 @@
     name = "toolchain_rules",
     srcs = glob(["*.bzl"]),
     visibility = ["//visibility:public"],
-    deps = ["@compatibility_proxy//:proxy_bzl"],
+    deps = ["//java/common/rules:toolchain_rules"],
 )
 
 filegroup(
diff --git a/java/toolchains/java_package_configuration.bzl b/java/toolchains/java_package_configuration.bzl
index 7ef0728..a419b5c 100644
--- a/java/toolchains/java_package_configuration.bzl
+++ b/java/toolchains/java_package_configuration.bzl
@@ -13,7 +13,7 @@
 # limitations under the License.
 """java_package_configuration rule"""
 
-load("@compatibility_proxy//:proxy.bzl", _java_package_configuration = "java_package_configuration")
+load("//java/common/rules:java_package_configuration.bzl", _java_package_configuration = "java_package_configuration")
 
 def java_package_configuration(**attrs):
     """Bazel java_package_configuration rule.
diff --git a/java/toolchains/java_runtime.bzl b/java/toolchains/java_runtime.bzl
index c1d1641..d9e3eac 100644
--- a/java/toolchains/java_runtime.bzl
+++ b/java/toolchains/java_runtime.bzl
@@ -13,7 +13,7 @@
 # limitations under the License.
 """java_runtime rule"""
 
-load("@compatibility_proxy//:proxy.bzl", _java_runtime = "java_runtime")
+load("//java/common/rules:java_runtime.bzl", _java_runtime = "java_runtime")
 
 def java_runtime(**attrs):
     """Bazel java_runtime rule.
diff --git a/java/toolchains/java_toolchain.bzl b/java/toolchains/java_toolchain.bzl
index 5207f8c..85fe1e5 100644
--- a/java/toolchains/java_toolchain.bzl
+++ b/java/toolchains/java_toolchain.bzl
@@ -13,7 +13,7 @@
 # limitations under the License.
 """java_toolchain rule"""
 
-load("@compatibility_proxy//:proxy.bzl", _java_toolchain = "java_toolchain")
+load("//java/common/rules:java_toolchain.bzl", _java_toolchain = "java_toolchain")
 
 def java_toolchain(**attrs):
     """Bazel java_toolchain rule.