src/jdk.compiler/share/classes/com/sun/tools/javac/main/OptionHelper.java

*** 25,34 ****
--- 25,35 ----
  
  package com.sun.tools.javac.main;
  
  import java.nio.file.Path;
  
+ import com.sun.tools.javac.util.JCDiagnostic;
  import com.sun.tools.javac.util.Log;
  import com.sun.tools.javac.util.Log.PrefixKind;
  
  /**
   * Helper object to be used by {@link Option#process}, providing access to
*** 61,70 ****
--- 62,74 ----
      public abstract String getOwnName();
  
      /** Report an error. */
      abstract void error(String key, Object... args);
  
+     /** Report an error. */
+     abstract void error(JCDiagnostic.Error error);
+ 
      /** Record a file to be compiled. */
      abstract void addFile(Path p);
  
      /** Record the name of a class for annotation processing. */
      abstract void addClassName(String s);
*** 111,120 ****
--- 115,129 ----
          void error(String key, Object... args) {
              throw new IllegalArgumentException(log.localize(PrefixKind.JAVAC, key, args));
          }
  
          @Override
+         void error(JCDiagnostic.Error error) {
+             throw new IllegalArgumentException(log.localize(error));
+         }
+ 
+         @Override
          public void addFile(Path p) {
              throw new IllegalArgumentException(p.toString());
          }
  
          @Override