[Bug java/33023] New: throw null

[Bug java/33023] New: throw null

[mark at gcc dot gnu dot org]

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gcj (GCC) 4.1.2 20070626 (Red Hat 4.1.2-13)

public class n
{
  public static void main(String[] args)
  {
    throw null;
  }
}

$ gcj -C n.java
n.java: In class 'n':
n.java: In method 'n.main(java.lang.String[])':
n.java:5: error: Checked exception ‘null’ isn't thrown from a ‘try’ block.
    throw null;
       ^
1 error

This is allowed according to JLS 14.18 "throw Expression ; [...] f evaluation
of the Expression completes normally, producing a null value, then an instance
V' of class NullPointerException is created and thrown instead of null."

This is with the old source frontend, with the new frontend based on ecj, this
does compile correctly.


-- 
           Summary: throw null
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: java
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mark at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33023

[Bug java/33023] throw null

[tromey at gcc dot gnu dot org]

------- Comment #1 from tromey at gcc dot gnu dot org  2007-08-09 18:07 -------
Yup, it's a bug.
We aren't really fixing bugs in the old front end though.
I'm closing it because this is a weird case and has a couple
simple workarounds.


-- 

tromey at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |WONTFIX
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33023