--- a/src/JavaVM.st	Fri Aug 12 13:13:30 2011 +0000
+++ b/src/JavaVM.st	Fri Aug 12 15:07:11 2011 +0000
@@ -5317,7 +5317,11 @@
 
     <javanative: 'java/lang/Package' name: 'getSystemPackage0'>
 
-    ^ UnimplementedNativeMethodSignal raise
+    "Based on code on OpenJDK, it is ok to return nil here:"
+
+    ^nil
+
+    "Modified: / 12-08-2011 / 16:00:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"
 !
 
 _java_lang_ProcessEnvironment_environ: nativeContext
@@ -6230,11 +6234,10 @@
 
     <javanative: 'java/util/zip/Inflater' name: 'reset'>
 
-    
-    UnimplementedNativeMethodSignal raise.
+    "Intentially left blank"
 
     "Created: / 01-02-1998 / 20:14:13 / cg"
-    "Modified: / 30-04-2011 / 22:56:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+    "Modified: / 12-08-2011 / 15:52:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
 !
 
 _java_util_zip_ZipEntry_initFields: aJavaContext