Re: SIGBUS in AllocSetAlloc & jdbc (fwd) - Mailing list pgsql-hackers

This is a suggestion that came back from the java-linux mailing list.

Peter

--       Peter T Mount peter@retep.org.uk     Main Homepage: http://www.retep.org.uk
PostgreSQL JDBC Faq: http://www.retep.org.uk/postgresJava PDF Generator: http://www.retep.org.uk/pdf

---------- Forwarded message ----------
Date: Tue, 04 May 1999 00:21:57 -0500
From: Chris Abbey <cabbey@home.net>
To: Peter T Mount <peter@retep.org.uk>
Cc: Java Linux Mailing List <java-linux@java.blackdown.org>
Subject: Re: SIGBUS in AllocSetAlloc & jdbc  (fwd)

This isn't a fix, but it'll get you around the problem for
now... I kid you not, it works with some of the code I run
here where people did the same switch logic around rmi. -=Chris

java -Djava.version=1.1.7 your.class.here
o o
\___/


At 12:05 PM 5/3/99 +0100, Peter T Mount wrote:
>
>[ I'm cc'ing this to java-linux as this seems to be a problem with the
>Linux PPC port - peter ]
>
>On Sun, 2 May 1999, Tatsuo Ishii wrote:
>
>[snip]
>
>> This morning I started to look into this. First, JDBC driver coming
>> with 6.5b did not compile. The reason was my JDK (JDK 1.1.7 v1 on
>> LinuxPPC) returns version string as "root:10/14/98-13:50" and
>> makeVersion expected it started with "1.1". This was easy to fix. So I
>> went on and tried the ImageViewer sample. It gave me SQL an exception:
>
>[snip]
>
>> P.S.  Peter, do you have any suggestion to make JDBC driver under JDK
>> 1.1.7?
>
>Ah, the first problem I've seen with the JVM version detection. the
>postgresql.Driver class does the same thing as makeVersion, and checks the
>version string, and when it sees that it starts with 1.1 it sets the base
>package to postgresql.j1 otherwise it sets it to postgresql.j2.
>
>The exceptions you are seeing is the JVM complaining it cannot find the
>JDK1.2 classes.
>
>As how to fix this, this is tricky. It seems that the version string isn't
>that helpful. The JDK documentation says it returns the version of the
>JVM, but there seems to be no set format for this. ie, with your version,
>it seems to give a date and time that VM was built.
>
>Java-Linux: Is there a way to ensure that the version string is similar to
>the ones that Sun produces? At least having the JVM version first, then
>reform after that?
>
>The PostgreSQL JDBC driver is developed and tested under Linux (intel)
>using 1.1.6 and 1.2b1 JVM's (both blackdown). I use Sun's Win32 1.2 JVM
>for testing. The current driver works fine on all three JVM's, so it seems
>to be the PPC port that has this problem.
>
>Peter
>
>-- 
>       Peter T Mount peter@retep.org.uk
>      Main Homepage: http://www.retep.org.uk
>PostgreSQL JDBC Faq: http://www.retep.org.uk/postgres
> Java PDF Generator: http://www.retep.org.uk/pdf
>
>
>
>----------------------------------------------------------------------
>To UNSUBSCRIBE, email to java-linux-request@java.blackdown.org
>with a subject of "unsubscribe". Trouble? Contact listadm@java.blackdown.org
>
>

!NEW!-=> <*> cabbey at home dot net  http://members.home.net/cabbey/ <*>
"What can Microsoft do? They certainly can't program around us." - Linus

-----BEGIN GEEK CODE BLOCK-----   Version:3.12   http://www.geekcode.com
GCS$/IT/PA$ d(-) s++:+ a-- C+++$ UL++++ UA++$ P++ L++ E- W++ N+ o? K? !P
w---(+)$ O- M-- V-- Y+ PGP+ t--- 5++ X+ R tv b+ DI+++ D G e++ h(+) r@ y?
------END GEEK CODE BLOCK------