core/src/main/java/com/orientechnologies/common/parser/OStringParser.java
public static boolean startsWithIgnoreCase(final String iText, final String iToFind) {
    if (iText.length() < iToFind.length())
      return false;

    return iText.substring(0, iToFind.length()).equalsIgnoreCase(iToFind);
  }
public static boolean startsWithIgnoreCase(final String iText, final String iToFind) {
    if (iText.length() < iToFind.length())
      return false;

    return iText.substring(0, iToFind.length()).equalsIgnoreCase(iToFind);
  }
Like String.startsWith() but ignoring case