We did take a vote sometime back though and we do not claim to work on
1.3 any longer.
Really if you want to make 1.42 binaries you really need to compile them
on 1.4.2 the backward compatibility stuff virtually never works on any
JDK for a project the size of POI.
-Andy
Yegor Kozlov wrote:
Very strange.
We have this setting in build.xml and it is "-target 1.3"!
We should be compatible with 1.3+ JVMs.
Nick, are you using the standard build.xml? Which JDK?
Regards,
Yegor
AS> even if compiling in 1.5, there is a setting to use backward compatible
AS> classfile format. We should just set in the ant buildfile for safety, so that
AS> we create correct builds irrespective of the java version on the release
AS> manager's machine. (this is assuming all source does compile in the older
AS> jdk, of course!)
AS> Separately, if you are interested in older versions of java, you should
AS> occasionally compile the source and report errors in your favourite jdk. It
AS> is very easy to check in non backward compatible stuff by mistake, depending
AS> on the jdk in one's machine...
AS> Regards
AS> -
AS> Avik
AS> On Friday 30 Mar 2007 5:38:40 am Karr, David wrote:
I assume you're only half serious. Dropping 1.4.2 at this point would
be a big mistake. In any case, I tried manually building the jars from
source with JDK 1.4.2, and it works fine.
-----Original Message-----
From: Andrew C. Oliver [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 29, 2007 12:47 PM
To: POI Users List
Subject: Re: Getting "class file has wrong version" error on
poi-scratchpad-3.0-rc2 jar
yeah unless we've dropped 1.42 then it should be compiled on 1.42.
So the last build is invalid or we need a vote to drop 1.42 and req 5+
-andy
David Fisher wrote:
That class file was compiled with JDK 5.0
See http://blogs.sun.com/sundararajan/entry/java_class_ic_errors
On Mar 29, 2007, at 2:25 PM, Karr, David wrote:
Obviously, I was wrong to refer to this as the scratchpad
jar. It's
the main poi jar.
-----Original Message-----
From: Karr, David
Sent: Thursday, March 29, 2007 12:06 PM
To: POI Users List
Subject: Getting "class file has wrong version" error on
poi-scratchpad-3.0-rc2 jar
I'm trying to use 3.0rc2, and I'm trying to use the
scratchpad jar
for the first time. I'm using JDK 1.4.2.
When I try to compile my code with Ant, I get the following:
bad class file:
...\lib\poi-3.0-rc2-20070329.jar(org/apache/poi/hssf/model/Wor
kbook.clas
s)
class file has wrong version 49.0, should be 48.0 Please
remove or
make sure it appears in the correct subdirectory of the classpath.
import org.apache.poi.hssf.model.Workbook;
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