Changes for bazelbuild/rules_java#222

.bazelrc

@@ -5,4 +5,10 @@
 common --experimental_downloader_config=downloader.cfg
 
 common --enable_bzlmod
+
+common --java_language_version=11
+common --tool_java_language_version=11
+common --java_runtime_version=custom_11
+common --tool_java_runtime_version=custom_11
+
 build --experimental_strict_java_deps=off

BUILD.bazel

@@ -1,3 +1,12 @@
 #
 # Root BUILD
-#
+#
+load("@rules_java//toolchains:default_java_toolchain.bzl", "default_java_toolchain", "bootclasspath")
+
+default_java_toolchain(
+    name = "my_java11_toolchain",
+    java_runtime = "@jdk11//:jdk",
+    source_version = "11",
+    target_version = "11",
+    header_compiler_direct = ["@remote_java_tools//:TurbineDirect"],
+)

MODULE.bazel

@@ -15,10 +15,14 @@ module(
 bazel_dep(name = "rules_java", version = "7.3.1", dev_dependency = True)
 single_version_override(module_name = "rules_java", version = "7.3.1")
 
+rules_java_ext = use_extension("@rules_java//java:extensions.bzl", "toolchains")
+use_repo(rules_java_ext, "remote_java_tools")
+
 custom_java = use_extension("//:java.bzl", "custom_java")
-use_repo(custom_java, "jdk11")
+use_repo(custom_java, "jdk11", "jdk11_toolchain_config_repo")
 
-register_toolchains("@jdk11//:all")
+register_toolchains("//:all")
+register_toolchains("@jdk11_toolchain_config_repo//:all")
 
 # Maven
 ### https://github.com/bazelbuild/rules_jvm_external

java.bzl

@@ -3,10 +3,11 @@ load("@rules_java//toolchains:remote_java_repository.bzl", "remote_java_reposito
 def _impl(modctx):
     remote_java_repository(
         name = "jdk11",
+        prefix = "custom",
         version = "11",
         urls = ["https://download.java.net/java/GA/jdk11/9/GPL/openjdk-11.0.2_linux-x64_bin.tar.gz"],
         sha256 = "99be79935354f5c0df1ad293620ea36d13f48ec3ea870c838f20c504c9668b57",
         strip_prefix = "jdk-11.0.2",
     )
 
-custom_java = module_extension(implementation = _impl)
+custom_java = module_extension(implementation = _impl)