public ByteSequenceLengthFilter getValue() {
		int index = indexBox.getIntValue();
		int minLength = minLengthBox.getIntValue();
		if (index > minLength) {
			return null;
		}
		try {
			return new ByteSequenceLengthFilter(index, minLength);
		}
		catch (IllegalArgumentException e) {
			return null;
		}
	}
Returns a new {@link ByteSequenceLengthFilter} based on the values in the minimum length filed and the index field.
@return a {@link ByteSequenceLengthFilter} if the value in the minimum length field is >= the value in the index 
field, otherwise {@code null}
Ghidra/Features/BytePatterns/src/main/java/ghidra/bitpatterns/gui/ByteSequenceLengthFilterInputDialog.java