protected @Nullable String findSourceJar(final @NotNull ProgressIndicator indicator,
                                 @NotNull String artifactId,
                                 @NotNull String version,
                                 @NotNull VirtualFile classesJar) throws SourceSearchException {
    return findSourceJar(indicator, artifactId, version);
  }
protected @Nullable String findSourceJar(final @NotNull ProgressIndicator indicator,
                                 @NotNull String artifactId,
                                 @NotNull String version,
                                 @NotNull VirtualFile classesJar)