diff --git a/ISBPL.java b/ISBPL_old.java
similarity index 99%
rename from ISBPL.java
rename to ISBPL_old.java
index 9b6e549..31d30af 100644
--- a/ISBPL.java
+++ b/ISBPL_old.java
@@ -2530,4 +2530,4 @@ class ISBPLFrame {
     }
 }
 
-public interface 
\ No newline at end of file
+public interface
\ No newline at end of file