--- /dev/null	2020-03-24 13:25:41.000000000 -0700
+++ new/test/jdk/sun/nio/cs/mapping/Cp300.c2b-irreversible	2020-03-24 13:25:41.000000000 -0700
@@ -0,0 +1,50 @@
+# 
+# Diff of 
+# b2c: cdctables.zip/Package2.zip/IBM-300.zip/012C34B0.TPMAP120
+# c2b: cdctables.zip/Package2.zip/IBM-300.zip/012C34B0.UPMAP120
+#
+4260        2212
+426A        00A6
+43A1        301C
+444A        2014
+446E        F86F
+447C        2016
+4C7D        9E7C
+4EB3        9830
+4F5E        5861
+507F        91AC
+5190        56CA
+51F1        6805
+51FA        91B1
+5261        9EB4
+52A1        881F
+52C9        840A
+52DA        7E61
+52EC        4FE0
+5353        8EC0
+5373        7E6B
+53B3        8346
+53DA        9A52
+53E8        87EC
+53EE        7130
+53F8        8523
+5443        5C5B
+5464        9DD7
+547D        5699
+5481        525D
+54A3        6414
+54A4        7626
+54CA        7C1E
+54CD        6451
+54D4        555E
+54FA        6F51
+5550        7006
+5553        79B1
+555F        9EB5
+55C0        5C62
+55C1        985A
+5B72        6522
+5BFE        688E
+60F1        7E48
+61B0        8141
+66C8        9839