>> I'm trying to fix up the JAlbum ebuild: >> >> http://bugs.gentoo.org/show_bug.cgi?id=128356 >> >> and get it to use java-pkg-2. Here's what I have so far: >> >> inherit java-pkg-2 eutils >> >> S="${WORKDIR}/Jalbum" >> DESCRIPTION="Web photo album generator" >> HOMEPAGE="http://jalbum.net/"; >> SRC_URI="http://jalbum.net/download/Jalbum${PV}.zip"; >> >> LICENSE="as-is" >> SLOT="0" >> KEYWORDS="x86" >> IUSE="" >> >> DEPEND=">=virtual/jre-1.5" >> RDEPEND="${DEPEND}" >> >> src_install() { >> java-pkg_dojar JAlbum.jar >> java-pkg_dolauncher jalbum \ >> --jar JAlbum.jar \ >> --java_args -Xmx400M >> >> local dest=/usr/lib/${PN} >> dodir ${dest} >> cp -R ${S}/* ${D}/${dest} || die "Install failed" >> >> doicon ${FILESDIR}/Jalbum-icon.png >> make_desktop_entry ${PN} >> } >> >> It executes just fine, but I get: >> >> $ jalbum >> Error: se.datadosen.jalbum.JAlbum >> java.lang.ClassNotFoundException: se.datadosen.jalbum.JAlbum >> at java.net.URLClassLoader$1.run(URLClassLoader.java:200) >> at java.security.AccessController.doPrivileged(Native Method) >> at java.net.URLClassLoader.findClass(URLClassLoader.java:188) >> at java.lang.ClassLoader.loadClass(ClassLoader.java:307) >> at java.lang.ClassLoader.loadClass(ClassLoader.java:252) >> at se.datadosen.jalbum.Main.main(Main.java:23) >> >> I was told I need to define the main class with --main. Does anyone >> know how to determine what the main class should be? > > > No, it has clearly already loaded at least one class (last line of that > stack trace reveals this), and is looking for some others needed by that > class -- but the classloader fails to find them. JAlbum probably also has a > Main-Class header defined in the jar's manifest, so this is likely to be > just another classpath-related issue. > > But the ebuild you're pushing ... I think it would need some serious work > for the installation part. I think it installs files in all wrong places, > and thus Gentoo's Generation 2 java system cannot automatically add them to > classpath. > > There is some advice on the issue in section 3, the Filesystem layout over > here: > > http://www.gentoo.org/proj/en/java/java-devel.xml > > After trudging through that you might understand why Gentoo Java team has > constantly several dev positions advertised on "help wanted". Some of Java's > ways don't mix that well with Gentoo's approaches, especially with compiling > and packaging (installations). > > If you are in a hurry of some sort, you might just try taking the jar, > unpacking it into a subdir under your homedir, cd'ing in, and trying > something like "CLASSPATH=.:${CLASSPATH} foo.sh". With a little luck it > might work as such, without the pain of making a proper ebuild for it. > > -- > Arttu V.
So 'emerge JAlbum' isn't feasible? - Grant
