natClass.cc (_Jv_IsAssignableFrom): Handle the case of an uninitialized target class.

        * java/lang/natClass.cc (_Jv_IsAssignableFrom): Handle the case of
        an uninitialized target class.

From-SVN: r45893

libjava/ChangeLog

+2001-09-30  Bryce McKinlay  <bryce@waitaki.otago.ac.nz>
+
+	* java/lang/natClass.cc (_Jv_IsAssignableFrom): Handle the case of
+	an uninitialized target class.
+
 2001-09-28  Per Bothner  <per@bothner.com>
 
 	* gnu/gcj/runtime/SharedLibLoader.java:  New class.

libjava/java/lang/natClass.cc

@@ -956,8 +956,9 @@ _Jv_IsAssignableFrom (jclass target, jclass source)
         return false;
       return true;
     }
-  else if (source->ancestors != NULL 
-           && source->depth >= target->depth
+  else if (source->ancestors != NULL
+	   && target->ancestors != NULL
+	   && source->depth >= target->depth
 	   && source->ancestors[source->depth - target->depth] == target)
     return true;