@Override
  public final ExitCode build(
      CompileContext context,
      ModuleChunk chunk,
      DirtyFilesHolder<JavaSourceRootDescriptor, ModuleBuildTarget> dirtyFilesHolder,
      OutputConsumer outputConsumer)
      throws ProjectBuildException, IOException {
    if (outputConsumer.getCompiledClasses().isEmpty() || !isEnabled(context, chunk)) {
      return ExitCode.NOTHING_DONE;
    }

    final String progress = getProgressMessage();
    final boolean shouldShowProgress = !StringUtil.isEmptyOrSpaces(progress);
    if (shouldShowProgress) {
      context.processMessage(new ProgressMessage(progress + " [" + chunk.getName() + "]"));
    }

    ExitCode exitCode = ExitCode.NOTHING_DONE;
    try {
      InstrumentationClassFinder finder = CLASS_FINDER.get(context); // try using shared finder
      if (finder == null) {
        final Collection<File> platformCp =
            ProjectPaths.getPlatformCompilationClasspath(chunk, false);
        final Collection<File> classpath = new ArrayList<File>();
        classpath.addAll(ProjectPaths.getCompilationClasspath(chunk, false));
        classpath.addAll(ProjectPaths.getSourceRootsWithDependents(chunk).keySet());

        finder = createInstrumentationClassFinder(platformCp, classpath, outputConsumer);
        CLASS_FINDER.set(context, finder);
      }

      exitCode = performBuild(context, chunk, finder, outputConsumer);
    } finally {
      if (shouldShowProgress) {
        context.processMessage(new ProgressMessage("")); // cleanup progress
      }
    }
    return exitCode;
  }