fix potential substring(0,0)

microsoft · Jun 15, 2023 · 7b1218c · 7b1218c
1 parent f111734
commit 7b1218c
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/parser/src/main/java/com/microsoft/gctoolkit/parser/UnifiedG1GCParser.java b/parser/src/main/java/com/microsoft/gctoolkit/parser/UnifiedG1GCParser.java
@@ -199,7 +199,8 @@ private void parse(String line) {
                 .findAny()
                 .ifPresentOrElse(
                         tuple -> {
-                            setForwardReference(gcid, line.substring(0, end));
+                            // Typically, "end" will be greater than zero, but not always.
+                            setForwardReference(gcid, end > 0 ? line.substring(0, end) : line);
                             applyRule(tuple.getKey(), tuple.getValue(), line);
                         },
                         () -> log(line)