Hi.
We have encountered a bug in Nashorn with JDK8 u221. It can be reproduced by
evaluation of this script with "jjs --language=es6":
{{{{{{{{{{{{{{{ let x; }}}}}}}}}}}}}}}
It results in "java.lang.ArrayIndexOutOfBoundsException: 16" output. It need
exactly 15 curly braces to cause this bug.
And here is the patch to fix it:
diff -r 06eed83ab4cd
src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/LexicalContext.java
---
a/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/LexicalContext.java
Tue Aug 06 12:14:41 20>
+++
b/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/LexicalContext.java
Fri Aug 09 11:37:23 20>
@@ -697,7 +697,7 @@
* @return {@code true} if in unprotected switch statement.
*/
public boolean inUnprotectedSwitchContext() {
- for (int i = sp; i > 0; i--) {
+ for (int i = sp - 1; i > 0; i--) {
final LexicalContextNode next = stack[i];
if (next instanceof Block) {
return stack[i - 1] instanceof SwitchNode;
P.S. Can we expect that this bug will be fixed in JDK8 updates?
