JDK-8156714 : Parsing issue with automatic semicolon insertion
  • Type: Bug
  • Component: core-libs
  • Sub-Component: jdk.nashorn
  • Affected Version: 9
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2016-05-11
  • Updated: 2016-10-13
  • Resolved: 2016-05-13
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8u112Fixed 9 b119Fixed
This issue was reported in nashorn-dev alias. See http://mail.openjdk.java.net/pipermail/nashorn-dev/2016-May/006125.html

Simplified test case is as follows:

File: t.js

v = function() {

/**/ function f() {

With both 8u and latest jdk9-dev, we get

t.js:4:5 Expected ; but found function
/**/ function f() {
t.js:5:0 Expected eof but found }

The comment "hides" the newline and prevents automatic semicolon insertion.