Convey the value of the --host_javabase startup option to the server.

--
PiperOrigin-RevId: 149282686
MOS_MIGRATED_REVID=149282686

src/main/cpp/blaze.cc

diff --git a/src/main/cpp/blaze.cc b/src/main/cpp/blaze.cc
index eec8f47..5fdf5ad 100644
--- a/src/main/cpp/blaze.cc
+++ b/src/main/cpp/blaze.cc
@@ -481,6 +481,11 @@
     result.push_back("--use_custom_exit_code_on_abrupt_exit=false");
   }
 
+  if (!globals->options->GetExplicitHostJavabase().empty()) {
+    result.push_back("--host_javabase=" +
+                     globals->options->GetExplicitHostJavabase());
+  }
+
   // This is only for Blaze reporting purposes; the real interpretation of the
   // jvm flags occurs when we set up the java command line.
   if (globals->options->host_jvm_debug) {