From 3cac179e728199d1eaf08d04651fff5886b73a5a Mon Sep 17 00:00:00 2001
From: Amy Wilder <henrythepony@gmail.com>
Date: Wed, 11 Feb 2026 16:09:21 -0500
Subject: [PATCH] Add null checks to file loading

---
 src/jls/JLSStart.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/jls/JLSStart.java b/src/jls/JLSStart.java
index ee67d0a..e3616b4 100644
--- a/src/jls/JLSStart.java
+++ b/src/jls/JLSStart.java
@@ -133,6 +133,8 @@ public static void start(String[] args, DefaultExceptionHandler exh) {
 			}
 			
 			Scanner input = getScannerForFile(startFile);
+			if (input == null)
+				System.exit(1);
 
 			// create new circuit
 			Circuit circ = new Circuit(cname);
@@ -1129,6 +1131,8 @@ public String getDescription() {
 		}
 		
 		Scanner input = getScannerForFile(filePath);
+		if (input == null)
+			return;
 
 		String cname;
 		cname = file.getName().replaceAll("\\.jls~$", "");
@@ -1377,6 +1381,8 @@ public String getDescription() {
 			return;
 		
 		Scanner input = getScannerForFile(chooser.getSelectedFile().getAbsolutePath());
+		if (input == null)
+			return;
 
 		// create new circuit
 		Circuit circ = new Circuit(chooser.getSelectedFile().getName().trim().replaceAll("\\.jls$",""));