Mailinglist Archive: opensuse-packaging (83 mails)

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Re: [opensuse-packaging] How to set javac target ?
  • From: Thomas Schmidt <tschmidt@xxxxxxx>
  • Date: Mon, 27 Oct 2008 15:05:58 +0100
  • Message-id: <4905CAC6.4000806@xxxxxxx>
Stefan Dirsch wrote:
On Mon, Oct 27, 2008 at 01:12:35PM +0100, Thomas Schmidt wrote:
Stefan Dirsch wrote:

I'm wondering how to set the javac target in a specfile.

ERROR: the files above contain java bytecode for something later than java
ERROR: please set the javac target to 1.5 or lower.

BTW, the error message contradicts itself ("later" means "lower"
version number?).

--> /usr/lib/rpm/brp-check-bytecode-version

How to reproduce:

osc co home:sndirsch geotag
cd home:sndirsch/geotag
env -u BUILD_DIST osc build
Your package only contains already compiled java code in a .jar file,
so there is no way to set a java version target.

Ok. So this basically means that packaging .jar files is impossible
using our buildservice. :-( Still the error message is confusing.

It would work when the .jar would have been built for Java 1.5 or lower.
But anyway it would not be ok I think, because you are packaging
a binary only file.

During compilation the java target version can be set with: javac
-target 1.5 for example.

According to the Geotag website you need eclipse to build the sources.

Not sure how this is supposed to work in our buildservice. :-(

The advantage of using eclipse is, that it has the junit dependency built in,
can create the jar archive by mouseclick.

You can build it manually like this:
find . -name \*.java > files
sudo zypper in junit
mkdir build
javac -d build -target 1.5 -nowarn -cp /usr/share/java/junit.jar @files
jar -c build > output.jar


Thomas Schmidt (tschmidt [at]
SUSE Linux Products GmbH :: Research & Development :: Tools
"Don't Panic", Douglas Adams (1952 - 11.05.2001)
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