libgcj/1142: Simple Java application fails to exit

libgcj/1142: Simple Java application fails to exit

[dey]

>Number:         1142
>Category:       libgcj
>Synopsis:       Simple Java application fails to exit
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    tromey
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Dec 20 12:06:34 PST 2000
>Closed-Date:    Fri Jun 23 15:40:17 PDT 2000
>Last-Modified:  Fri Jun 23 15:50:00 PDT 2000
>Originator:     David E. Young
>Release:        libgcj 2.95.1
>Organization:
>Environment:
sparc ultra 30
solaris 7
256mb ram
gcj 2.95.2
gnu ld 2.9.1
libgcj 2.95.1 (posix threads enabled)
>Description:
I've written a simple Java application that fails to exit given certain conditions.
The source code is attached; simply stated, if I comment out the annotated
call to System.exit() causes the process to "hang"; compiling it in results
in expected behavior (i.e. the process exits after return from main().

I compiled the program like this:

  gcj --main=Rocky -o rocky Rocky.java -lrt

Just in case the file attachment didn't work, here's the source:


public class Rocky {
    public static void main(String argv[])
    {
        String name;

        if (argv.length == 0) {
            name = "Rocket J. Squirrel";
        } else {
            name = argv[0];
        }

        new Rocky(name).identifySelf();
        System.out.println("goodbye");

        //System.exit(0);
    }

    public Rocky (String name)
    {
        v_name = name;
    }
    
    public void identifySelf()
    {
        System.out.println("This is a Rocky instance named " + v_name);
        System.out.println("Leaving identifySelf()...");
    }

    private String v_name;
}
>How-To-Repeat:
Just compile and run the enclosed program.
>Fix:

>Release-Note:

>Audit-Trail:

Formerly PR libgcj/133


From: Tom Tromey <tromey@cygnus.com>
To: dey@nc.fnc.fujitsu.com
Cc: java-gnats@sourceware.cygnus.com
Subject: Re: libgcj/133: Simple Java application fails to exit 
Date: Tue, 11 Jan 2000 12:35:54 -0800 (PST)

 This looks to be a platform-specific problem, or perhaps a bug in that
 release.  The program works fine for me on x86 Linux with the latest
 libgcj.
 
 I'm afraid I can't look at it any further than that for a while.
 You could try debugging and seeing why it hangs.
 
 Tom
 
State-Changed-From-To: open->closed
State-Changed-By: tromey
State-Changed-When: Fri Jun 23 15:40:17 2000
State-Changed-Why:
    I've decided to close this PR.
    
    First, libgcj 2.95.1 is known not to work on Solaris 2.7.
    The GC included in that version of libgcj has a known bug.
    You have to use a more recent libgcj on Solaris 2.7.
    
    Second, I can't reproduce this bug.
    
    If you still have this problem with a newer libgcj,
    please tell me and I will reopen the PR.

From: tromey@cygnus.com
To: dey@nc.fnc.fujitsu.com, java-gnats@sourceware.cygnus.com,
  tromey@cygnus.com
Cc:  
Subject: Re: libgcj/133
Date: 23 Jun 2000 22:40:17 -0000

 Synopsis: Simple Java application fails to exit
 
 State-Changed-From-To: open->closed
 State-Changed-By: tromey
 State-Changed-When: Fri Jun 23 15:40:17 2000
 State-Changed-Why:
     I've decided to close this PR.
     
     First, libgcj 2.95.1 is known not to work on Solaris 2.7.
     The GC included in that version of libgcj has a known bug.
     You have to use a more recent libgcj on Solaris 2.7.
     
     Second, I can't reproduce this bug.
     
     If you still have this problem with a newer libgcj,
     please tell me and I will reopen the PR.
 
 http://sourceware.cygnus.com/cgi-bin/gnatsweb.pl?cmd=view&pr=133&database=java
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="Rocky.java"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="Rocky.java"

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