@Override
	public boolean accepts(StringDataInstance value, TableFilterContext context) {
		String s = value.getStringValue();
		return (s != null) && s.chars().anyMatch(
			codePoint -> codePoint == StringUtilities.UNICODE_REPLACEMENT);
	}
Tests if a string value contains any Unicode {@link StringUtilities#UNICODE_REPLACEMENT} chars,
which indicate that there was a decoding error
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/strings/HasEncodingErrorColumnConstraint.java