[Java-gnome-developer] Freezing on runtime exception within signal handler

[Julian F. <jfi...@ho...>]

When a runtime exception (such as a NullPointerException) gets thrown from
within a handler method, the entire Gtk main loop freezes.

This patch corrects the problem.  The only thing is it seems like the
exception may not be getting re-thrown like it ought to be... the program
no longer freezes but the main loop doesn't exit with an exception either.
Anyway, it's one step up from where it was:

Julian

Index: src/other/callback_dispatcher.c
===================================================================
RCS file: /cvsroot/java-gnome/java-gnome/src/other/callback_dispatcher.c,v
retrieving revision 1.14
diff -u -r1.14 callback_dispatcher.c
--- src/other/callback_dispatcher.c     2001/03/15 12:34:24     1.14
+++ src/other/callback_dispatcher.c     2001/03/24 06:57:10
@@ -118,6 +118,7 @@
     jobject globalObj;
     jlong peer;
     jfieldID peerfid;
+    jthrowable exc;
     
     jargs = alloca(n_args+1 * sizeof(jvalue));
 
@@ -251,6 +252,12 @@
     default:
       printf("*** ERROR ***:  Return type %d NYI", args[n_args].type);
       break;
+    }
+
+    exc = (* cbi->env)->ExceptionOccurred(cbi->env);
+    if (exc) {
+       (* cbi->env)->Throw(cbi->env, exc);
+       (* cbi->env)->ExceptionClear(cbi->env);
     }
 }