private static void handleIOException(IOException exception) {
		try {
			if (fileWriter != null) {
				fileWriter.close();
			}
		}
		catch (IOException newException) {
			// squash
		}
		Msg.error(PdbLog.class, "IOException encountered; disabling writer", exception);
		enabled = false;
	}
Returns a {@link NullWriter} for the log file when chosen instead of a FileWriter.  If
one already exists, it is returned.  Otherwise a new one is created
@return a {@link NullWriter} for the log file
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/PdbLog.java