Name: mc57594 Date: 03/11/97

(files attached)

I have four peices of code -- ServerManager.java, AppServer.java,
PrintString.java/PrintStringImp.c, and client.java which do the
following:

ServerManager waits on a port to start an AppServer at client request.

AppServer extends Thread--connects to client and instanciates a
PrintString object.

PrintStringImp implements the native methods to print a jstring
that is passed to it (no problem) or to put the string into a local
char array and then return the same string using NewStringUTF
(this is where the problem lies.)

client takes input from stdio and sends it to the AppServer which
passes it to the native code and returns the results.

If I compile this under NT 3.51 using Java 1.1 and JNI, there is
no problem. If I compile and run under Solaris (gcc 2.5.8) the
program core dumps when returning the string. To compile, I noticed
a difference in the NewStringUTF --

   Under NT: NewStringUTF(env, str, len)
  
   Under Solaris: NewStringUTF(env, str)

as defined in the jni.h file.

I can supply the code if you need it (send me email,
###@###.###)




company - NRL , email - ###@###.###
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