From @masak

<masak> m​: month
<camelia> rakudo-moar d78b63​: OUTPUT«===SORRY!=== Error while
compiling /tmp/LaTRxwVvWt␤Undeclared routine​:␤ month used at line
1␤␤»
<masak> m​: constant m = month
<camelia> rakudo-moar d78b63​: OUTPUT«===SORRY!===␤Cannot invoke null object␤»
* masak submits LTA rakudobug
<masak> r​: constant m = month
<camelia> rakudo-moar d78b63​: OUTPUT«===SORRY!===␤Cannot invoke null object␤»
<camelia> ..rakudo-parrot d78b63​: OUTPUT«===SORRY!===␤Could not find
sub &month␤»
<camelia> ..rakudo-jvm d78b63​:
OUTPUT«===SORRY!===␤java.lang.NullPointerException␤»

Expected behavior​: Rakudo Parrot's above.

From @coke

On Tue Jun 03 02​:30​:32 2014, masak wrote​:

<masak> m​: month
<camelia> rakudo-moar d78b63​: OUTPUT«===SORRY!=== Error while
compiling /tmp/LaTRxwVvWt␤Undeclared routine​:␤ month used at line
1␤␤»
<masak> m​: constant m = month
<camelia> rakudo-moar d78b63​: OUTPUT«===SORRY!===␤Cannot invoke null
object␤»
* masak submits LTA rakudobug
<masak> r​: constant m = month
<camelia> rakudo-moar d78b63​: OUTPUT«===SORRY!===␤Cannot invoke null
object␤»
<camelia> ..rakudo-parrot d78b63​: OUTPUT«===SORRY!===␤Could not find
sub &month␤»
<camelia> ..rakudo-jvm d78b63​:
OUTPUT«===SORRY!===␤java.lang.NullPointerException␤»

Expected behavior​: Rakudo Parrot's above.

This is now better on the jvm than on moar, but is probably closable with tests (esp. if moar is updated to reference the the object in the error)

09​:49 < [Coke]> r​: constant m = month;
09​:49 <+camelia> rakudo-jvm ba7027​: OUTPUT«===SORRY!=== Error while compiling
  /tmp/tmpfile␤An exception occurred while evaluating a
  constant␤at /tmp/tmpfile​:1␤Exception details​:␤ ===SORRY!===
  Error while compiling ␤ Can not invoke object '&month'␤ at
  :␤»
09​:49 <+camelia> ..rakudo-moar ba7027​: OUTPUT«===SORRY!=== Error while
  compiling /tmp/tmpfile␤An exception occurred while evaluating
  a constant␤at /tmp/tmpfile​:1␤Exception details​:␤ ===SORRY!===
  Error while compiling ␤ Cannot invoke this object␤ at :␤»
--
Will "Coke" Coleda

The RT System itself - Status changed from 'new' to 'open'

This has been fixed shortly before Christmas: #4902 (comment)

Current output:

$ ./rakudo-m -e 'constant m = month'
===SORRY!=== Error while compiling -e
Undeclared routine:
    month used at line 1

There is also a test for the exception type in roast's S32-exceptions/misc.t, added with Raku/roast@a4ace08538.

I'm closing this issue as resolved.