public static @Nullable JavaChangeInfo getJavaChangeInfo(ChangeInfo changeInfo, UsageInfo usageInfo) {
    if (changeInfo instanceof JavaChangeInfo) {
      return (JavaChangeInfo)changeInfo;
    }
    else {
      JavaChangeInfoConverter converter = findConverter(changeInfo.getLanguage());
      if (converter != null) {
        return converter.toJavaChangeInfo(changeInfo, usageInfo);
      }
    }
    return null;
  }
public static @Nullable JavaChangeInfo getJavaChangeInfo(ChangeInfo changeInfo, UsageInfo usageInfo)