Fix rare Null Pointer Exception when closing Serial Monitor Window

PaulStoffregen · Oct 6, 2021 · 7780fe0 · 7780fe0
1 parent 8f4c1da
commit 7780fe0
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/app/src/processing/app/FifoDocument.java b/app/src/processing/app/FifoDocument.java
@@ -164,10 +164,12 @@ public synchronized void free() {
 		char_head = char_tail = 0;
 		line_head = line_tail = 0;
 		char_buf = null;
-		for (int i=0; i < line_size; i++) {
-			line_buf[i] = null;
+		if (line_buf != null) {
+			for (int i=0; i < line_size; i++) {
+				line_buf[i] = null;
+			}
+			line_buf = null;
 		}
-		line_buf = null;
 		newline_offset = null;
 		System.gc();
 	}