Re: [BUGS] Bug #926: if old postgresql.jar in CLASSPATH,

The following will do what you're asking:

<available classname="org.postgresql.Driver"
property="old.driver.present" />
<fail message="Old driver on classpath" if="old.driver.present" />

Dave Cramer wrote:

>I think you are correct, this will not fix 2, is it possible to detect
>if a class is present in ant, and fail?
>
>dave
>On Thu, 2003-08-21 at 16:16, Barry Lind wrote:
>
>
>>Can someone explain to me why this change fixes the problem?
>>
>>I don't understand why including 'includeAntRuntime="no"' in the javac
>>tag will cause the compile to no longer pick up old versions of the
>>driver that may be around. There are two cases that I am familiar with
>>of this problem: 1) there is a old postgresql jdbc jar file in the
>>CLASSPATH environment, and 2) there is an old jar in the jre/lib/ext
>>directory. I can see where this patch might prevent 1 (although the
>>property name and doc aren't very clear on that) but I don't see how it
>>would fix 2.
>>
>>thanks,
>>--Barry
>>
>>
>>Dave Cramer wrote:
>>
>>
>>>Yes, agreed
>>>
>>>Dave
>>>On Sun, 2003-08-17 at 09:57, Palle Girgensohn wrote:
>>>
>>>
>>>
>>>>It's been in use for the freebsd port for some months now, so I say
>>>>yes. ;-)
>>>>
>>>>/Palle
>>>>
>>>>lördagen den 16 augusti 2003 kl 22.54 skrev Bruce Momjian:
>>>>
>>>>
>>>>
>>>>
>>>>>Is this patch valid for inclusion in jdbc?
>>>>>
>>>>>-----------------------------------------------------------------------
>>>>>----
>>>>>
>>>>>pgsql-bugs(at)postgresql(dot)org wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Palle Girgensohn (girgen(at)pingpong(dot)net) reports a bug with a severity
>>>>>>of 3
>>>>>>The lower the number the more severe it is.
>>>>>>
>>>>>>Short Description
>>>>>>if old postgresql.jar in CLASSPATH, ant fails
>>>>>>
>>>>>>Long Description
>>>>>>See http://www.freebsd.org/cgi/query-pr.cgi?pr=48878
>>>>>>
>>>>>>If there is an older postgresql.jar file in the ant classpath when
>>>>>>building a new postgresql.jar, it will fail.
>>>>>>
>>>>>>Sample Code
>>>>>>Adding includeAntRuntime="no" to the compile target in build.xml, as
>>>>>>suggested by Tetsurou Okazaki <okazaki(at)FreeBSD(dot)org>, fixes the >> problem
>>>>>>
>>>>>>--- src/interfaces/jdbc/build.xml~ Sun Oct 20 02:10:55 2002
>>>>>>+++ src/interfaces/jdbc/build.xml Mon Mar 3 12:10:37 2003
>>>>>>@@ -101,7 +101,7 @@
>>>>>>
>>>>>> <!-- This is the core of the driver. It is common for all three
>>>>>>versions. -->
>>>>>> <target name="compile" depends="prepare,check_versions,driver">
>>>>>>- <javac srcdir="${srcdir}" destdir="${builddir}" debug="${debug}">
>>>>>>+ <javac includeAntRuntime="no" srcdir="${srcdir}"
>>>>>>destdir="${builddir}" debug="${debug}">
>>>>>> <include name="${package}/**" />
>>>>>>
>>>>>> <exclude name="${package}/jdbc1/**" unless="jdbc1"/>
>>>>>>
>>>>>>
>>>>>>No file was uploaded with this report
>>>>>>
>>>>>>
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>>>>>>
>>>>>>
>>>>>--
>>>>> Bruce Momjian | http://candle.pha.pa.us
>>>>> pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
>>>>> + If your life is a hard drive, | 13 Roberts Road
>>>>> + Christ can be your backup. | Newtown Square, Pennsylvania
>>>>>19073
>>>>>
>>>>>
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>>>>
>>>>
>>
>>
>>