Update Bazel bootstrap documentation and remove obsolete flags. (#15065)

Closes #15055.

PiperOrigin-RevId: 435014309

Co-authored-by: Ivo List <[email protected]>

Author: Wyverald

scripts/bootstrap/bootstrap.sh

@@ -36,9 +36,6 @@ _BAZEL_ARGS="--spawn_strategy=standalone \
       --strategy=Javac=worker --worker_quit_after_build --ignore_unsupported_sandboxing \
       --compilation_mode=opt \
       --distdir=derived/distdir \
-      --java_toolchain=//scripts/bootstrap:bootstrap_toolchain \
-      --host_java_toolchain=//scripts/bootstrap:bootstrap_toolchain \
-      --incompatible_use_toolchain_resolution_for_java_rules \
       --extra_toolchains=//scripts/bootstrap:bootstrap_toolchain_definition \
       ${DIST_BOOTSTRAP_ARGS:-} \
       ${EXTRA_BAZEL_ARGS:-}"

site/docs/install-compile-source.md

@@ -212,7 +212,7 @@ sudo apt-get install build-essential openjdk-11-jdk python zip unzip
 
 3.  `cd` to the directory where you unpacked the distribution archive.
 
-3.  Run the compilation script: `env EXTRA_BAZEL_ARGS="--host_javabase=@local_jdk//:jdk" bash ./compile.sh`.
+3.  Run the compilation script: `env EXTRA_BAZEL_ARGS="--tool_java_runtime_version=local_jdk" bash ./compile.sh`.
 
 The compiled output is placed into `output/bazel`. This is a self-contained
 Bazel binary, without an embedded JDK. You can copy it anywhere or use it
@@ -283,7 +283,7 @@ Unix-like systems.)
 
 3.  `cd` to the directory where you unpacked the distribution archive.
 
-4.  Run the compilation script: `env EXTRA_BAZEL_ARGS="--host_javabase=@local_jdk//:jdk" ./compile.sh`
+4.  Run the compilation script: `env EXTRA_BAZEL_ARGS="--tool_java_runtime_version=local_jdk" ./compile.sh`
 
 The compiled output is placed into `output/bazel.exe`. This is a self-contained
 Bazel binary, without an embedded JDK. You can copy it anywhere or use it

src/test/shell/bazel/bazel_bootstrap_distfile_test.sh

@@ -102,7 +102,7 @@ function test_bootstrap() {
 
     JAVABASE=$(echo reduced*)
 
-    env EXTRA_BAZEL_ARGS="--host_javabase=@local_jdk//:jdk --tool_java_runtime_version=local_jdk" ./compile.sh \
+    env EXTRA_BAZEL_ARGS="--tool_java_runtime_version=local_jdk" ./compile.sh \
         || fail "Expected to be able to bootstrap bazel"
     ./output/bazel \
       --server_javabase=$JAVABASE --host_jvm_args=--add-opens=java.base/java.nio=ALL-UNNAMED \