Forest Extension - Not to be found?

[Mario Torre]

2011/7/28 Mario Torre <neugens at limasoftware.net>:

> I'll write down some proposal for the README files and propose them
> here then. I will try to send you hopefully tomorrow a patch for the
> Makefile as well.

I'm trying to build the JDK8 with a local JDK7 as a dependency, on
Fedora 15, but I'm stuck at the very beginning:

make[2]: Entering directory
`/home/neugens/work_space/netbeans/jdk8-build/langtools/make'
JAVA_HOME=/home/neugens/work_space/netbeans/jdk7u/build/linux-amd64/j2sdk-image/
ANT_OPTS=-Djava.io.tmpdir='/home/neugens/work_space/netbeans/jdk8-build/build/linux-amd64/langtools/build/ant-tmp'
ant -diagnostics >
/home/neugens/work_space/netbeans/jdk8-build/build/linux-amd64/langtools/build/ant-diagnostics.log
; \
  JAVA_HOME=/home/neugens/work_space/netbeans/jdk7u/build/linux-amd64/j2sdk-image/
ANT_OPTS=-Djava.io.tmpdir='/home/neugens/work_space/netbeans/jdk8-build/build/linux-amd64/langtools/build/ant-tmp'
ant -version >>
/home/neugens/work_space/netbeans/jdk8-build/build/linux-amd64/langtools/build/ant-diagnostics.log
Error: Could not find or load main class org.apache.tools.ant.launch.Launcher
Error: Could not find or load main class org.apache.tools.ant.launch.Launcher
make[2]: *** [/home/neugens/work_space/netbeans/jdk8-build/build/linux-amd64/langtools/build/ant-diagnostics.log]
Error 1
make[2]: Leaving directory
`/home/neugens/work_space/netbeans/jdk8-build/langtools/make'
make[1]: *** [langtools-build] Error 2
make[1]: Leaving directory `/home/neugens/work_space/netbeans/jdk8-build'
make: *** [build_product_image] Error 2

Doing some debug it seems that the ant script launches at some point a
script called "build-classpath", which tries to build the classpath
and set it as an environment variable, but fails for some reason.

I can bypass this script but then the ant itself fails because it
doesn't find the correct jars.

Now, I think this maybe a Fedora 15 bug, although those scripts do not
seem to be completely tied to Fedora (that means this can be a bug
affecting other distribution using the jpackage system that seems to
be behind this build-classpath script).

It maybe that building the JDK using a boot JDK other than
ALT_BOOTDIR=/usr/lib/jvm/java-openjdk doesn't work, at least of F15
(which is not exactly the best Linux distribution around to be
honest).

Does anybody here (Andrew, Mark?) have experienced similar issues?

I'm sure there is an easy way to set all this configuration stuff, but
probably we need to tweak the makefiles to support that.

Cheers,
Mario
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