Have BlazeCommandDispatcher use a NOOP ExtendedEventHandler on second…

… parse

- this avoids log spam of option parsing issues

Work towards bazelbuild#18513

PiperOrigin-RevId: 715944733
Change-Id: I75f0e01e4cb2c03dddc08a5580d528c2f6e91c18

src/main/java/com/google/devtools/build/lib/events/ExtendedEventHandler.java

@@ -22,6 +22,15 @@
  */
 public interface ExtendedEventHandler extends EventHandler {
 
+  public static final ExtendedEventHandler NOOP =
+      new ExtendedEventHandler() {
+        @Override
+        public void handle(Event event) {}
+
+        @Override
+        public void post(Postable obj) {}
+      };
+
   /** An event that can be posted via the extended event handler. */
   interface Postable extends Reportable {
 

src/main/java/com/google/devtools/build/lib/runtime/BlazeCommandDispatcher.java

@@ -40,6 +40,7 @@
 import com.google.devtools.build.lib.events.Event;
 import com.google.devtools.build.lib.events.EventHandler;
 import com.google.devtools.build.lib.events.EventKind;
+import com.google.devtools.build.lib.events.ExtendedEventHandler;
 import com.google.devtools.build.lib.events.ExtendedEventHandler.Postable;
 import com.google.devtools.build.lib.events.PrintingEventHandler;
 import com.google.devtools.build.lib.events.Reporter;
@@ -648,8 +649,10 @@ private BlazeCommandResult execExclusively(
                   runtime, workspace, command, commandAnnotation, optionsParser, invocationPolicy);
           ImmutableList.Builder<OptionAndRawValue> invocationPolicyFlagListBuilder =
               ImmutableList.builder();
+          // Do not handle any events since this is the second time we parse the options.
           earlyExitCode =
-              optionHandler.parseOptions(args, reporter, invocationPolicyFlagListBuilder);
+              optionHandler.parseOptions(
+                  args, ExtendedEventHandler.NOOP, invocationPolicyFlagListBuilder);
           env.setInvocationPolicyFlags(invocationPolicyFlagListBuilder.build());
         }
         if (!earlyExitCode.isSuccess()) {