Resolution:
The encoding methods supported by the adapter are determined by the common encoding methods supported by Orbacus and TIBCO SDK.

Currently, Orbacus 4.1.x supports the following encoding methods:
ISO 8859-1:1987; Latin Alphabet No. 1
ISO 8859-2:1987; Latin Alphabet No. 2
ISO 8859-3:1988; Latin Alphabet No. 3
ISO 8859-4:1988; Latin Alphabet No. 4
ISO/IEC 8859-5:1988; Latin-Cyrillic Alphabet
ISO 8859-6:1987; Latin-Arabic Alphabet
ISO 8859-7:1987; Latin-Greek Alphabet
ISO 8859-8:1988; Latin-Hebrew Alphabet
ISO/IEC 8859-9:1989; Latin Alphabet No. 5
ISO/IEC 8859-10:1992; Latin Alphabet No. 6
ISO 646:1991 IRV (International Reference Version)
ISO/IEC 10646-1:1993; UCS-2, Level 1
ISO/IEC 10646-1:1993; UCS-2, Level 2
ISO/IEC 10646-1:1993; UCS-2, Level 3
ISO/IEC 10646-1:1993; UCS-4, Level 1
ISO/IEC 10646-1:1993; UCS-4, Level 2
ISO/IEC 10646-1:1993; UCS-4, Level 3
ISO/IEC 10646-1:1993; UTF-1, UCS Transformation Format 1
ISO/IEC 10646-1:1993; UTF-16, UCS Transformation Format 16-bit form
JIS X0201:1976; Japanese phonetic characters
JIS X0208:1978 Japanese Kanji Graphic Characters
JIS X0208:1983 Japanese Kanji Graphic Characters
JIS X0208:1990 Japanese Kanji Graphic Characters
JIS X0212:1990; Supplementary Japanese Kanji Graphic Chars
JIS eucJP:1993; Japanese EUC
KS C5601:1987; Korean Hangul and Hanja Graphic Characters
KS C5657:1991; Supplementary Korean Graphic Characters
KS eucKR:1991; Korean EUC
CNS 11643:1986; Taiwanese Hanzi Graphic Characters
CNS 11643:1992; Taiwanese Extended Hanzi Graphic Chars
CNS eucTW:1991; Taiwanese EUC
CNS eucTW:1993; Taiwanese EUC
TTB CCDC:1984; Chinese Code for Data Communications
HP kana8; Japanese katakana (incl JIS X0201:1976)
HP japanese15 (sjis); Shift-JIS for mainframe (incl JIS X0208:1990)
HP sjishi; Shift-JIS for HP user (incl JIS X0208:1990)
HP sjispc; Shift-JIS for PC (incl JIS X0208:1990)
HP ujis; EUC (incl JIS X0208:1990)
IBM-896 (CCSID 00896); Japanese Katakana characters; superset of JIS X0201:1976
IBM-955 (CCSID 00955); Japan Kanji characters; superset of JIS X0208:1978
IBM-5048 (CCSID 05048); Japanese Kanji characters; superset of JIS X0208:1990 (and 1983)
IBM-5049 (CCSID 05049); Japanese Kanji characters; superset of JIS X0212:1990
IBM-5067 (CCSID 05067); Korean Hangul and Hanja; superset of KS C5601:1987
HTCsjis : Hitachi SJIS 90-1
HTCujis : Hitachi eucJP 90-1

Currently, TIBCO SDK 4.1.2 supports the following encoding methods:
ASCII
EBCDIC_XML_US
IBM_1038, IBM_1047, IBM_1089, IBM_1123, IBM_1140, IBM_1140_S390, IBM_1141, IBM_1142, IBM_1142_S390
IBM_1143, IBM_1143_S390, IBM_1144, IBM_1144_S390, IBM_1145, IBM_1145_S390, IBM_1146, IBM_1146_S390
IBM_1147, IBM_1147_S390, IBM_1148, IBM_1148_S390, IBM_1149, IBM_1149_S390, IBM_1153, IBM_1153_S390
IBM_1154, IBM_1155, IBM_1156, IBM_1157, IBM_1158, IBM_1159, IBM_1160, IBM_1164, IBM_1250, IBM_1251
IBM_1252, IBM_1253, IBM_1254, IBM_1255, IBM_1256, IBM_1257, IBM_1258, IBM_12712, IBM_12712_S390,
IBM_1275, IBM_1276, IBM_1277, IBM_1280, IBM_1281, IBM_1282, IBM_1283, IBM_1361, IBM_1362, IBM_1363,
IBM_1364, IBM_1370, IBM_1371, IBM_1383, IBM_1386, IBM_1390, IBM_1399, IBM_16684, IBM_16804,
IBM_16804_S390, IBM_17248, IBM_21427
IBM_273, IBM_277, IBM_278, IBM_280, IBM_284, IBM_285, IBM_290, IBM_297, IBM_37, IBM_37_S390, IBM_420,
IBM_424, IBM_437
IBM_4899, IBM_4909, IBM_4930, IBM_4971,
IBM_500
IBM_5104, IBM_5123, IBM_5210, IBM_5346, IBM_5347, IBM_5349, IBM_5350, IBM_5351, IBM_5352, IBM_5353,
IBM_5354
IBM_803, IBM_808,  IBM_813, IBM_834, IBM_835, IBM_848
IBM_8482
IBM_849, IBM_850, IBM_852, IBM_855, IBM_856, IBM_857, IBM_858, IBM_859, IBM_860, IBM_861, IBM_862,
IBM_863, IBM_864, IBM_865, IBM_866, IBM_867, IBM_868, IBM_869, IBM_871, IBM_872, IBM_874, IBM_878,
IBM_901, IBM_902
IBM_9027, IBM_9044, IBM_9049, IBM_9061
IBM_912, IBM_913, IBM_914, IBM_915, IBM_916, IBM_920, IBM_921, IBM_922, IBM_923
IBM_9238
IBM_930, IBM_933, IBM_935, IBM_937, IBM_939, IBM_942, IBM_943, IBM_949, IBM_950, IBM_970
ISO_2022
JIS
LATIN_1
PLATFORM_UNICODE
UTF16BE, UTF16LE
UTF8

Please contact IONA Orbacus support and TIBCO SDK support for a comprehensive and current list of supported encoding methods.

Which encoding methods does the CORBA adapter support?