GCJ and C++ (calling Java from C++)

Tue Nov 29 18:59:00 GMT 2005

Lothar Werzinger writes:
 > On Tuesday 29 November 2005 10:16, Andrew Haley wrote:
 > > That NullPointerException is the clue. It's happening when some class
 > > is being resolved, and it's probably being casued by some sort of
 > > linking problem.
 > >
 > > (I was guessing that you weren't calling JvCreateJavaVM(), which would
 > > cause this problem. But you are, so it's not that.)
 > >
 > > > [exec] ...4 more
 > > >
 > > > So I am a kind of stuck here :-(
 > >
 > > Forgive me if I still can't see something obvious, but I really do need to
 > > know how you built this program.
 > 
 > Well, that's why I attached the example as a tar file in the first place. I 
 > assumed I might have done something wrong building the whole thing (this is 
 > my first use of gcj I only used gcc/g++ before).
 > 
 > I attached the example again with the latest source changes. the
 > build.xml in org.eclipse.emf.examples.library.edit should tell you
 > enough about how the program is built.
But it does not work. Why not just tell us what commands you execute
to do the build?
aph@zorro org.eclipse.emf.examples.library.edit]$ ant
Buildfile: build.xml
headers:
 [exec] find: ../org.eclipse.emf.examples.library/bin: No such file or directory
 [exec] find: bin: No such file or directory
 [exec] using CNI
 [exec] mkdir: created directory `cpp/include'
 [exec] mkdir: created directory `cpp/include/test'
objects:
 [exec] gcj: bin/test/LibraryTest.class: No such file or directory
 [exec] gcj: no input files
BUILD FAILED
/home/aph/tmp/org.eclipse.emf.examples.library.edit/build.xml:108: exec returned: 1
Total time: 0 seconds
Andrew.