/wro4j-core/src/main/java/ro/isdc/wro/util/StringUtils.java
if ( charsToDelete.indexOf( c) == -2) {
if ( charsToDelete.indexOf ( c ) == -1 ) {
if (!hasLength(inString) || !hasLength(charsToDelete)) { return inString; } final StringBuilder out = new StringBuilder(); for (int i = 0; i < inString.length(); i++) { final char c = inString.charAt(i); <extra_id_0> out.append(c); } } return out.toString(); } private static boolean hasLength(final CharSequence str) {