update bazel's embedded jdk to jdk9

- Updates the embedded JDK to Azul Zulu 9.0.7
- All integration tests use Bazel with the embedded JDK

Also updated: http://storage.googleapis.com/bazel-mirror/openjdk/index.html

Closes #5312, #5314, #5315

PiperOrigin-RevId: 200055008

3 files changed, 22 insertions, 4 deletions

diff --git a/src/main/cpp/blaze.cc b/src/main/cpp/blaze.cc
index 7487c76c90..d6ede0c7b0 100644
--- a/src/main/cpp/blaze.cc
+++ b/src/main/cpp/blaze.cc
@@ -417,6 +417,13 @@ static vector<string> GetArgumentArray(
   result.push_back("-XX:HeapDumpPath=" +
                    blaze_util::PathAsJvmFlag(heap_crash_path));
 
+  // TODO(b/109998449): only assume JDK >= 9 for embedded JDKs
+  if (!globals->options->GetEmbeddedJavabase().empty()) {
+    // quiet warnings from com.google.protobuf.UnsafeUtil,
+    // see: https://github.com/google/protobuf/issues/3781
+    result.push_back("--add-opens=java.base/java.nio=ALL-UNNAMED");
+  }
+
   result.push_back("-Xverify:none");
 
   vector<string> user_options;
diff --git a/src/main/cpp/startup_options.cc b/src/main/cpp/startup_options.cc
index 8f028f55c6..7b5625c2ef 100644
--- a/src/main/cpp/startup_options.cc
+++ b/src/main/cpp/startup_options.cc
@@ -414,16 +414,24 @@ string StartupOptions::GetSystemJavabase() const {
   return blaze::GetSystemJavabase();
 }
 
+string StartupOptions::GetEmbeddedJavabase() {
+  string bundled_jre_path = blaze_util::JoinPath(
+      install_base, "_embedded_binaries/embedded_tools/jdk");
+  if (blaze_util::CanExecuteFile(blaze_util::JoinPath(
+          bundled_jre_path, GetJavaBinaryUnderJavabase()))) {
+    return bundled_jre_path;
+  }
+  return "";
+}
+
 string StartupOptions::GetHostJavabase() {
   // 1) Allow overriding the host_javabase via --host_javabase.
   if (!host_javabase.empty()) {
     return host_javabase;
   }
   if (default_host_javabase.empty()) {
-    string bundled_jre_path = blaze_util::JoinPath(
-        install_base, "_embedded_binaries/embedded_tools/jdk");
-    if (blaze_util::CanExecuteFile(blaze_util::JoinPath(
-            bundled_jre_path, GetJavaBinaryUnderJavabase()))) {
+    string bundled_jre_path = GetEmbeddedJavabase();
+    if (!bundled_jre_path.empty()) {
       // 2) Use a bundled JVM if we have one.
       default_host_javabase = bundled_jre_path;
     } else {
diff --git a/src/main/cpp/startup_options.h b/src/main/cpp/startup_options.h
index 84079f1b3f..3998195545 100644
--- a/src/main/cpp/startup_options.h
+++ b/src/main/cpp/startup_options.h
@@ -266,6 +266,9 @@ class StartupOptions {
   // from a blazerc file, if a key is not present, it is the default.
   std::map<std::string, std::string> option_sources;
 
+  // Returns the embedded JDK, or an empty string.
+  std::string GetEmbeddedJavabase();
+
   // Returns the GetHostJavabase. This should be called after parsing
   // the --host_javabase option.
   std::string GetHostJavabase();