private static int getJavacServerHeapSize(CompileContext context) {
   final JpsProject project = context.getProjectDescriptor().getProject();
   final JpsJavaCompilerConfiguration config =
       JpsJavaExtensionService.getInstance().getOrCreateCompilerConfiguration(project);
   final JpsJavaCompilerOptions options = config.getCurrentCompilerOptions();
   return options.MAXIMUM_HEAP_SIZE;
 }
  private static void loadCommonJavacOptions(CompileContext context) {
    final List<String> options = new ArrayList<String>();
    final List<String> vmOptions = new ArrayList<String>();

    final JpsProject project = context.getProjectDescriptor().getProject();
    final JpsJavaCompilerConfiguration compilerConfig =
        JpsJavaExtensionService.getInstance().getOrCreateCompilerConfiguration(project);
    final JpsJavaCompilerOptions compilerOptions = compilerConfig.getCurrentCompilerOptions();
    if (compilerOptions.DEBUGGING_INFO) {
      options.add("-g");
    }
    if (compilerOptions.DEPRECATION) {
      options.add("-deprecation");
    }
    if (compilerOptions.GENERATE_NO_WARNINGS) {
      options.add("-nowarn");
    }
    if (compilerOptions instanceof EclipseCompilerOptions) {
      final EclipseCompilerOptions eclipseOptions = (EclipseCompilerOptions) compilerOptions;
      if (eclipseOptions.PROCEED_ON_ERROR) {
        options.add("-proceedOnError");
      }
    }
    final String customArgs = compilerOptions.ADDITIONAL_OPTIONS_STRING;
    if (customArgs != null) {
      final StringTokenizer customOptsTokenizer = new StringTokenizer(customArgs, " \t\r\n");
      boolean skip = false;
      while (customOptsTokenizer.hasMoreTokens()) {
        final String userOption = customOptsTokenizer.nextToken();
        if (FILTERED_OPTIONS.contains(userOption)) {
          skip = true;
          continue;
        }
        if (!skip) {
          if (!FILTERED_SINGLE_OPTIONS.contains(userOption)) {
            if (userOption.startsWith("-J-")) {
              vmOptions.add(userOption.substring("-J".length()));
            } else {
              options.add(userOption);
            }
          }
        }
      }
    }

    if (useEclipseCompiler(context)) {
      for (String option : options) {
        if (option.startsWith("-proceedOnError")) {
          Utils.PROCEED_ON_ERROR_KEY.set(context, Boolean.TRUE);
          break;
        }
      }
    }

    JAVAC_OPTIONS.set(context, options);
    JAVAC_VM_OPTIONS.set(context, vmOptions);
  }