Trying to embed gnu.xml.dom.DomDocumentBuilderFactory

Sat Apr 21 17:45:00 GMT 2007

David Daney writes:
 > Mohsen Saboorian wrote:
 > > On 4/21/07, Andrew Haley <aph@littlepinkcloud.com> wrote:
 > >> Mohsen Saboorian writes:
 > >> > On 4/21/07, Andrew Haley <aph-gcc@littlepinkcloud.com> wrote:
 > >> > > Mohsen Saboorian writes:
 > >> > > > I filled a bug report:
 > >> > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31647
 > >> > > >
 > >> > > > Andrew, newing DomDocumentBuilderFactory workaround didn't 
 > >> work for
 > >> > > > me. Do you know any other workaround ;)?
 > >> > >
 > >> > > Did you follow my suggestion?
 > >> > >
 > >> >
 > >> > Yes, and there was some entries for both
 > >> > gnu.xml.dom.DomDocumentBuilderFactory and gnu.xml.dom.DomImpl.
 > >>
 > >> No, you need the dump for gnu.xml.dom.DomDocumentBuilderFactory and
 > >> gnu.xml.dom.DomImpl. It's *their* dependencies that are causing the
 > >> problems.
 > >>
 > >> Andrew.
 > >>
 > >
 > > As you see in attachments, there is no dependency between two classes
 > > DomDocumebtBuilderFactory and DomImpl.
 > >
 > > But what about NoClassDefFounError in my class in which I explicitly
 > > new'd DomImpl?
 > Try running under gdb with a breakpoint in the NoClassDefFoundError 
 > constructor. You can then walk up the stack a bit and see which class 
 > it is looking for.
Yes. 
Something has just dawned on me: all the XML stuff is built with
indirect dispatch in the current libgcj, and that will break
everything when linking statically!
Mohsen, we build the XML stuff with indirect dispatch so that it can
easily be dynamically replaced, but this is bad for you. Edit
scripts/makemake.tcl so that lines like these are removed:
set package_map(gnu/xml/util) bc
set package_map(javax/xml) bc
then run 
scripts/makemake.tcl > sources.am 
This will give you something that the static linker will be able to
understand.
Alternatively, perhaps you could link explicitly against all the XML
object files.
Andrew.