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Judging from this archives, I seem to be the only one having problems on
compiling RMI under gcj on Windows.
Ok, I admit I am new to GCJ. But I have a very simple wish in my mind:
testing GCJ on a helloworld-based RMI code. My code is a client that
calls a getSum(int x, int y) method on a server, it is running fine on
Sun JVM.
I'm using windows XP, with the following packages:
- MinGW-4.1.0 (gcj 3.4.2 comes with it) on my C drive.
- libiconv-1.8.1
I then set system path point to C:\MinGW\bin, and add C:\MinGW\lib to
system classpath. Everything is running fine. GCJ is capable of
compiling some sample java code.
The problem came when I was trying to run the rmiregistry from gcj. A
error was thrown out:
WARNING: could not properly read security provider files:
file:///mingw/lib/security/libgcj.security
file:///mingw/lib/security/classpath.security
Falling back to standard GNU security provider
java.rmi.RemoteException: failed to export: class
gnu.java.rmi.dgc.DGCImpl
at 0x00418d4e (Unknown Source)
at 0x00419242 (Unknown Source)
at 0x004436f4 (Unknown Source)
I checked mingw/lib/security directory, both security files are there
and the registry seems still running. I don't really know what cause the
problem? Do I need to configure mingw to run gcj properly?
Another problem is found when I was trying to generate stub/skeleton
using GCJ's rmic. I notice -classpath flag is ignored at this moment.
Therefore, I used the following batch file to do the job:
::set CLASSPATH=.;%cd%\bin;
grmic -vcompat RMIServerImpl.class
A "java.lang.ClassNotFoundException: RMIServerImpl.class not found
exception" is thrown out. I did try a few other approaches by calling
grmic in the same directory of the class file, or using Sun rmic to
generate stub/skeleton files then use it with gcj compiled files. But
they all fall short.
One final question, how to make use of policy file in RMI setting with
GCJ RMI? The file I am currently using is:
Policy.all
grant {
permission java.security.AllPermission;
};
if anyone out there is using GCJ RMI on windows successfully and
wouldn't mind to helping me figure this out, I would much appreciate
your effort, since I am stacked by these problem for three days.
Regards
Rui
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