diff --git a/configure/CONFIG_COMMON b/configure/CONFIG_COMMON
index cac1cfb70..d54738df8 100644
--- a/configure/CONFIG_COMMON
+++ b/configure/CONFIG_COMMON
@@ -109,6 +109,9 @@ TESTPRODNAME = $(addsuffix $(EXE),$(basename $(TESTPROD)))
 
 SHRLIBNAME = $(SHRLIBNAME_$(SHARED_LIBRARIES))
 
+JAVA =
+JAR =
+
 #--------------------------------------------------
 # obj files