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From "Nathan Beyer" <nbe...@kc.rr.com>
Subject RE: [app] ant with ecj
Date Tue, 29 Aug 2006 02:03:08 GMT


> -----Original Message-----
> From: Alexey Petrenko [mailto:alexey.a.petrenko@gmail.com]
> Sent: Monday, August 28, 2006 1:25 AM
> To: harmony-dev@incubator.apache.org
> Subject: Re: [app] ant with ecj
> 
> 2006/8/28, Vladimir Gorr <vvgorr@gmail.com>:
> > Indeed this issue exists if JAVA_HOME refers to Harmony JRE:
> > echo $JAVA_HOME
> > .../classlib/trunk/deploy/jdk/jre
> >
> > echo $LD_LIBRARY_PATH
> > .../classlib/trunk/deploy/jdk/jre/bin
> >
> > echo $CLASSPATH=.../classlib/trunk/depends/jars/ecj_3.2/ecj_3.2.jar
> >
> > ant -Dbuild.compiler=org.eclipse.jdt.core.JDTCompilerAdapter
> >
> > ...
> > [javac] 3608. ERROR in
> >
> /nfs/ins/proj/drl/coreapi/vgorr/GIT/classlib/trunk/modules/text/src/main/j
> ava/java/text/DecimalFormat.java
> >    [javac]  (at line 23)
> >    [javac]     import java.math.BigDecimal;
> > ...
> >
> > It means our build system doesn't work correspondingly for the self-
> hosting
> > mode.
> Strange... It worked some time ago.
> 
> > Besides I'd like to note a lot of warning are generated when we use
> ECJ3.2.
> Yep, that is known issue.
> Eclipse compiler is much more worried then RI's :)

I believe we could get many of the same errors if we enabled -Xlint with the
RI.

> 
> >
> > Thanks,
> > Vladimir.
> >
> >
> >
> >
> > On 8/28/06, Jordan Justen <jljusten@gmail.com> wrote:
> > >
> > > My JAVA_HOME is set to harmony/jdk/jre.
> > >
> > > Are you sure ant is running with harmony's jvm and classlibs when
> > > JAVA_HOME
> > > is set to sun's path?
> > >
> > > I am wanting to use the harmony classlibs and jvm with ant and the ecj
> > > compiler.  Hopefully this would make no dependencies on sun's java.
> > >
> > > You know what.  I didn't explicitly mention that I was trying to run
> this
> > > with harmony.  Whoops, sorry.
> > >
> > > -Jordan
> > >
> > > On 8/27/06, Nathan Beyer <nbeyer@kc.rr.com> wrote:
> > > >
> > > > The current build scripts should be doing this already. For example,
> > > this
> > > > is
> > > > a snippet from the 'luni' module's build script.
> > > >
> > > >         <javac sourcepath=""
> > > >                srcdir="${hy.luni.src.main.java}"
> > > >                destdir="${hy.build}"
> > > >                source="${hy.javac.source}"
> > > >                target="${hy.javac.target}"
> > > >                debug="${hy.javac.debug}">
> > > >             <bootclasspath>
> > > >                 <fileset dir="${hy.jdk}/jre/lib/boot">
> > > >                     <include name="**/*.jar" />
> > > >                 </fileset>
> > > >             </bootclasspath>
> > > >         </javac>
> > > >
> > > > It points to luni's source directory and puts everything in the
> deploy
> > > > (JDK)/jre/lib/boot folder on the bootclasspath to compile against.
> In
> > > the
> > > > case of "java.lang.Object", this should be in the "luni-kernel-
> stubs.jar
> > > ".
> > > > If you're doing a full compile, then "java.lang.Object" should be
> > > included
> > > > in the source files.
> > > >
> > > > I just ran the build using the Eclipse compiler and it worked fine.
> > > Here's
> > > > what I did.
> > > > 1. Check out all of the code from the classlib trunk [1] down. You
> need
> > > > everything from the folder down.
> > > > 2. From the 'trunk' folder, run 'ant fetch-depends', which downloads
> all
> > > > of
> > > > the dependencies for the build.
> > > > 3. Grab the ecj_3.2.jar from the 'trunk/depends/jars/ecj_3.2' and
> copied
> > > > it
> > > > into my ANT_HOME/lib folder. This puts ECJ on Ant's classpath.
> > > > 4. From the 'trunk' folder, run 'ant build
> > > > -Dbuild.compiler=org.eclipse.jdt.core.JDTCompilerAdapter' and the
> entire
> > > > federated build runs.
> > > >
> > > > Is this similar to what you're doing? Note, I'm running Ant with
> > > JAVA_HOME
> > > > pointing to Sun's 5.0_7 JDK.
> > > >
> > > > -Nathan
> > > >
> > > > [1]
> > > >
> > > >
> > >
> https://svn.apache.org/repos/asf/incubator/harmony/enhanced/classlib/trunk
> /
> > > >
> > > > > -----Original Message-----
> > > > > From: Jordan Justen [mailto:jljusten@gmail.com]
> > > > > Sent: Sunday, August 27, 2006 10:31 PM
> > > > > To: harmony-dev@incubator.apache.org
> > > > > Subject: Re: [app] ant with ecj
> > > > >
> > > > > Nathan,
> > > > >
> > > > > Is there a way to have the javac/ecj task include all of standard
> > > > harmony
> > > > > jars without including them in the CLASSPATH environment variable?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > -Jordan
> > > > >
> > > > > On 8/27/06, Nathan Beyer <nbeyer@kc.rr.com> wrote:
> > > > > >
> > > > > > Keep in mind that the execution of the Ant scripts and the
> > > compilation
> > > > > are
> > > > > > two separate things, which means they are using two different
> > > > > classpaths.
> > > > > > If
> > > > > > the compilation task is complaining about a missing class, then
> this
> > > > > means
> > > > > > the class is missing from the classpath of the compiler, not
the
> > > > > classpath
> > > > > > of the executing Ant. You'll need the Eclipse compiler JAR on
> Ant's
> > > > > > execution classpath to execute the javac task.
> > > > > >
> > > > > > This can be confusing when using the Eclipse compiler, since
it
> > > > doesn't
> > > > > > have
> > > > > > any "default" classpath. Normally when you're using 'javac'
from
> a
> > > > JDK,
> > > > > > the
> > > > > > classpath of the underlying JRE (all of the java.*, etc classes)
> is
> > > > > > automatically on the classpath. The Eclipse compiler is not
part
> of
> > > a
> > > > > JDK,
> > > > > > so there is nothing on the classpath by default.
> > > > > >
> > > > > > -Nathan
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Jordan Justen [mailto:jljusten@gmail.com]
> > > > > > > Sent: Sunday, August 27, 2006 8:49 PM
> > > > > > > To: harmony-dev@incubator.apache.org
> > > > > > > Subject: Re: [app] ant with ecj
> > > > > > >
> > > > > > > Richard,
> > > > > > >
> > > > > > > Yes, I also added ecj_3.2.jar to the CLASSPATH.
> > > > > > >
> > > > > > > Ant works fine, but the first time a javac task is
> encountered,
> > > the
> > > > > > > compiler
> > > > > > > complained that java.lang.Object was not found.  I then
added
> > > > > > > jdk/jre/lib/boot/kernel.jar to CLASSPATH.  Now, I see an
error
> > > that
> > > > > > > java.lang.String is not found, so I added luni.jar to
> CLASSPATH.
> > > > > etc...
> > > > > > >
> > > > > > > Since ant is basically working (mkdir tasks, delete tasks,
> java
> > > > tasks
> > > > > > all
> > > > > > > seem to work), I think the harmony jvm is loading these
"boot"
> > > jars,
> > > > > but
> > > > > > > it
> > > > > > > seems like when the javac task uses ecj, those jars are
not
> > > visible.
> > > > > > >
> > > > > > > I'm using windows xp, ant 1.6.5, and the latest harmony
jdk
> > > > snapshot.
> > > > > > >
> > > > > > > Thanks again,
> > > > > > >
> > > > > > > -Jordan
> > > > > > >
> > > > > > > On 8/27/06, Richard Liang <richard.liangyx@gmail.com>
wrote:
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > Jordan Justen wrote:
> > > > > > > > > Hi all.
> > > > > > > > >
> > > > > > > > > I'm trying to use ant with the ecj compiler.
 I override
> the
> > > > > > compiler
> > > > > > > in
> > > > > > > > > build.xml like this:
> > > > > > > > >  <property name="build.compiler" value="
> > > > > > > > > org.eclipse.jdt.core.JDTCompilerAdapter" />
> > > > > > > > >
> > > > > > > > > This will execute the compiler, but I find I
have to add
> each
> > > > jar
> > > > > > from
> > > > > > > > > jdk/jre/lib/boot to CLASSPATH or else ecj won't
find the
> > > > standard
> > > > > > > > classes
> > > > > > > > > during compilation.
> > > > > > > > >
> > > > > > > > > This is probably user error, and not related
to harmony.
> > > > :)  Does
> > > > > > > anyone
> > > > > > > > > know what I might be improperly configuring?
> > > > > > > > Hello Jordan,
> > > > > > > >
> > > > > > > > Do you mean the "build.compiler" property in
> > > make/build_java.xml?
> > > > I
> > > > > > just
> > > > > > > > give it a try by 1) overriding the compiler as what
you have
> > > done
> > > > 2)
> > > > > > > > adding
> > > C:\harmony\workspace\trunk\depends\jars\ecj_3.2\ecj_3.2.jar
> > > > > > into
> > > > > > > > classpath.
> > > > > > > >
> > > > > > > > Everything works OK. :-) Could you give more detailed
> > > information
> > > > > > about
> > > > > > > > this issue? Thanks a lot.
> > > > > > > >
> > > > > > > > Best regards,
> > > > > > > > Richard
> > > > > > > > >
> > > > > > > > > Thanks,
> > > > > > > > >
> > > > > > > > > -Jordan
> > > > > > > > >
> > > > > > > >
> > > > > > > > --
> > > > > > > > Richard Liang
> > > > > > > > China Software Development Lab, IBM
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > --------------------------------------------------------------------
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> > >
> >
> >
> 
> 
> --
> Alexey A. Petrenko
> Intel Middleware Products Division
> 
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