in main/src/main/java/org/apache/james/jdkim/tagvalue/TagValue.java [259:265]
protected boolean isInListCaseInsensitive(CharSequence hash, List<CharSequence> hashes) {
for (CharSequence suppHash : hashes) {
if (hash.toString().equalsIgnoreCase(suppHash.toString()))
return true;
}
return false;
}