*** old/src/share/classes/com/sun/tools/javac/api/JavacTaskImpl.java	Fri Jan 18 02:48:15 2013
--- new/src/share/classes/com/sun/tools/javac/api/JavacTaskImpl.java	Fri Jan 18 02:48:14 2013

*** 152,165 ****
--- 152,166 ----
          if (used.getAndSet(true)) {
              if (compiler == null)
                  throw new IllegalStateException();
          } else {
              initContext();
+             compilerMain.log = Log.instance(context);
              compilerMain.setOptions(Options.instance(context));
              compilerMain.filenames = new LinkedHashSet<File>();
              Collection<File> filenames = compilerMain.processArgs(CommandLine.parse(args), classNames);
!             if (filenames != null && !filenames.isEmpty())
                  throw new IllegalArgumentException("Malformed arguments " + toString(filenames, " "));
              compiler = JavaCompiler.instance(context);
              compiler.keepComments = true;
              compiler.genEndPos = true;
              // NOTE: this value will be updated after annotation processing