public inbox for gcc-prs@sourceware.org help / color / mirror / Atom feed
From: adam@xwt.org To: gcc-gnats@gcc.gnu.org Subject: java/6754: Casting to gnu.gcj.RawData causes SEGV Date: Mon, 20 May 2002 17:56:00 -0000 [thread overview] Message-ID: <20020521005157.8385.qmail@sources.redhat.com> (raw) >Number: 6754 >Category: java >Synopsis: Casting to gnu.gcj.RawData causes SEGV >Confidential: no >Severity: serious >Priority: low >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Mon May 20 17:56:00 PDT 2002 >Closed-Date: >Last-Modified: >Originator: adam@xwt.org >Release: unknown-1.0 >Organization: >Environment: GCJ (Linux and Win32 verified) >Description: Cast a gnu.gcj.RawData to Object and then back. When casting back, the code will throw a NullPointerException -- I assume this is because the gcj-generated code is attempting to follow the Class pointer (which RawData does not have). >How-To-Repeat: import java.io.*; import gnu.gcj.RawData; public class test { public static native RawData foo(); public static RawData bar(Object o) { return (RawData)o; } public static void main(String[] s) throws Exception { bar(foo()); } } #include<gcj/cni.h> #include<gnu/gcj/RawData.h> #include "test.h" gnu::gcj::RawData* test::foo() { return (gnu::gcj::RawData*)73; } >Fix: >Release-Note: >Audit-Trail: >Unformatted:
next reply other threads:[~2002-05-21 0:56 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-05-20 17:56 adam [this message] 2002-05-22 20:24 bryce
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20020521005157.8385.qmail@sources.redhat.com \ --to=adam@xwt.org \ --cc=gcc-gnats@gcc.gnu.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).