Regression test suit for Hopper build 18:
http://meercat.sfbay:8080/shuna/i18n_regression/script/hopper/build18_07252002/
JDK : Hopper rc b18
OS : Solaris 8 sparc(euc)
Test case : sun/tools/native2ascii/Native2AsciiTests.sh

Regression test Native2AsciiTests.sh failed on Solaris due to an the following error.
---------System.out:(20/676)*----------
\u76f8\u9055\u306f\u3042\u308a\u307e\u305b\u3093\u3002
4630463 passed
-rw-rw-r-- 1 rs88024 staff 129 7\u6708 26\u65e5 2002\u5e74 x.in
\u76f8\u9055\u306f\u3042\u308a\u307e\u305b\u3093\u3002
4636448 passed
\u76f8\u9055\u306f\u3042\u308a\u307e\u305b\u3093\u3002
4630971 passed
*** /home/rs88024/regression/reg_merlin/test/sun/tools/native2ascii/A2N_4701617.expected 2002\u5e74 7\u6708 25\u65e5 (\u6728)
--- x.out.1 2002\u5e74 7\u6708 26\u65e5 (\u91d1)
***************
*** 8,11 ****
  \u5317\u6d0b\u6900
  \u51ab\u5616\u5b5b
  \u5fe4\u63a3\u6840
! \u6bf3\ufffd--- 8,11 ----
  \u5317\u6d0b\u6900
  \u51ab\u5616\u5b5b
  \u5fe4\u63a3\u6840
! \u6bf3\ufffd
4701617 failed
----------System.err:(5/555)*----------
+ diff -c /home/rs88024/regression/reg_merlin/test/sun/tools/native2ascii/A2N_4630463.expected x.out.1
+ diff -c /home/rs88024/regression/reg_merlin/test/sun/tools/native2ascii/N2A_4636448.expected x.in.1
+ diff -c /home/rs88024/regression/reg_merlin/test/sun/tools/native2ascii/A2N_4630971 x.out.1
+ diff -c /home/rs88024/regression/reg_merlin/test/sun/tools/native2ascii/A2N_4701617.expected x.out.1
\u8b66\u544a: \u30d5\u30a1\u30a4\u30eb x.out.1 \u306e\u672b\u5c3e\u306b\u5fa9\u5e30\u6539\u884c (newline) \u304c\u3042\u308a\u307e\u305b\u3093\u3002
result: Failed. Execution failed: exit code 1
----------------------------------------------------------------------------
* Please see attached file for more detail of error.

Although I found this problem with Hopper-b18, this had occured since b15.

Looking at the header of test program Native2AsciiTests.sh,
this test case was updated in 02/06/14.
I compared b18 and b15.

% diff b18-Native2asciiTests.sh b15-Native2asciiTests.sh
2,3c2,3
< # @test @(#)Native2AsciiTests.sh 1.4 02/06/14
< # @bug 4630463 4630971 4636448 4701617
---
> # @test @(#)Native2AsciiTests.sh 1.2 02/04/24
> # @bug 4630463 4630971 4636448
61,68d60
<
< # Check reverse (char -> native) encoding of Japanese Halfwidth
< # Katakana characters for MS932 (default WinNT Japanese encoding)
< # Regression test for bugID 4701617
<
< rm -f x.*
< $N2A -reverse -encoding MS932 $TESTSRC/A2N_4701617 x.out
< check 4701617 $TESTSRC/A2N_4701617.expected x.out

I confirmed that this fail does not occur using old version test program(b15) with Hopper-b18.
Therefore, it seems that this fail is caused by having updated the program.
But I'm not sure.

This problem does not occur on Windows and RedHat Linux, occurs only on Solraris.