Diego Dupin added a comment - 2016-02-11 11:31 Hi, The error seems to be related to charset : All exchanges with server are done in UTF-8. The only exception are stream data that are send in server charset. it is possible you send the result of this query : SHOW variables like 'char%'; SHOW CHARACTER SET; SHOW COLLATION; To be sure to reproduced the error, You have this when using the client and server on Ubuntu 14.4 with MariaDB 10.1.11

Suwon Chae added a comment - 2016-02-11 11:40 Hi diego, (nice to meet u ) We're using utf8mb4 and insert data charset is 'utf8' from json file. Here is result: MariaDB [(none)] > SHOW variables like 'char%'; ------------------------- ---------------------------+ Variable_name Value ------------------------- ---------------------------+ character_set_client utf8 character_set_connection utf8 character_set_database utf8mb4 character_set_filesystem binary character_set_results utf8 character_set_server utf8mb4 character_set_system utf8 character_sets_dir /usr/share/mysql/charsets/ ------------------------- ---------------------------+ 8 rows in set (0.00 sec) MariaDB [(none)] > SHOW CHARACTER SET; --------- --------------------------- ------------------- -------+ Charset Description Default collation Maxlen --------- --------------------------- ------------------- -------+ big5 Big5 Traditional Chinese big5_chinese_ci 2 dec8 DEC West European dec8_swedish_ci 1 cp850 DOS West European cp850_general_ci 1 hp8 HP West European hp8_english_ci 1 koi8r KOI8-R Relcom Russian koi8r_general_ci 1 latin1 cp1252 West European latin1_swedish_ci 1 latin2 ISO 8859-2 Central European latin2_general_ci 1 swe7 7bit Swedish swe7_swedish_ci 1 ascii US ASCII ascii_general_ci 1 ujis EUC-JP Japanese ujis_japanese_ci 3 sjis Shift-JIS Japanese sjis_japanese_ci 2 hebrew ISO 8859-8 Hebrew hebrew_general_ci 1 tis620 TIS620 Thai tis620_thai_ci 1 euckr EUC-KR Korean euckr_korean_ci 2 koi8u KOI8-U Ukrainian koi8u_general_ci 1 gb2312 GB2312 Simplified Chinese gb2312_chinese_ci 2 greek ISO 8859-7 Greek greek_general_ci 1 cp1250 Windows Central European cp1250_general_ci 1 gbk GBK Simplified Chinese gbk_chinese_ci 2 latin5 ISO 8859-9 Turkish latin5_turkish_ci 1 armscii8 ARMSCII-8 Armenian armscii8_general_ci 1 utf8 UTF-8 Unicode utf8_general_ci 3 ucs2 UCS-2 Unicode ucs2_general_ci 2 cp866 DOS Russian cp866_general_ci 1 keybcs2 DOS Kamenicky Czech-Slovak keybcs2_general_ci 1 macce Mac Central European macce_general_ci 1 macroman Mac West European macroman_general_ci 1 cp852 DOS Central European cp852_general_ci 1 latin7 ISO 8859-13 Baltic latin7_general_ci 1 utf8mb4 UTF-8 Unicode utf8mb4_general_ci 4 cp1251 Windows Cyrillic cp1251_general_ci 1 utf16 UTF-16 Unicode utf16_general_ci 4 utf16le UTF-16LE Unicode utf16le_general_ci 4 cp1256 Windows Arabic cp1256_general_ci 1 cp1257 Windows Baltic cp1257_general_ci 1 utf32 UTF-32 Unicode utf32_general_ci 4 binary Binary pseudo charset binary 1 geostd8 GEOSTD8 Georgian geostd8_general_ci 1 cp932 SJIS for Windows Japanese cp932_japanese_ci 2 eucjpms UJIS for Windows Japanese eucjpms_japanese_ci 3 --------- --------------------------- ------------------- -------+ 40 rows in set (0.01 sec) MariaDB [(none)] > SHOW COLLATION; ----------------------------- -------- --- ------- -------- --------+ Collation Charset Id Default Compiled Sortlen ----------------------------- -------- --- ------- -------- --------+ big5_chinese_ci big5 1 Yes Yes 1 big5_bin big5 84   Yes 1 dec8_swedish_ci dec8 3 Yes Yes 1 dec8_bin dec8 69   Yes 1 cp850_general_ci cp850 4 Yes Yes 1 cp850_bin cp850 80   Yes 1 hp8_english_ci hp8 6 Yes Yes 1 hp8_bin hp8 72   Yes 1 koi8r_general_ci koi8r 7 Yes Yes 1 koi8r_bin koi8r 74   Yes 1 latin1_german1_ci latin1 5   Yes 1 latin1_swedish_ci latin1 8 Yes Yes 1 latin1_danish_ci latin1 15   Yes 1 latin1_german2_ci latin1 31   Yes 2 latin1_bin latin1 47   Yes 1 latin1_general_ci latin1 48   Yes 1 latin1_general_cs latin1 49   Yes 1 latin1_spanish_ci latin1 94   Yes 1 latin2_czech_cs latin2 2   Yes 4 latin2_general_ci latin2 9 Yes Yes 1 latin2_hungarian_ci latin2 21   Yes 1 latin2_croatian_ci latin2 27   Yes 1 latin2_bin latin2 77   Yes 1 swe7_swedish_ci swe7 10 Yes Yes 1 swe7_bin swe7 82   Yes 1 ascii_general_ci ascii 11 Yes Yes 1 ascii_bin ascii 65   Yes 1 ujis_japanese_ci ujis 12 Yes Yes 1 ujis_bin ujis 91   Yes 1 sjis_japanese_ci sjis 13 Yes Yes 1 sjis_bin sjis 88   Yes 1 hebrew_general_ci hebrew 16 Yes Yes 1 hebrew_bin hebrew 71   Yes 1 tis620_thai_ci tis620 18 Yes Yes 4 tis620_bin tis620 89   Yes 1 euckr_korean_ci euckr 19 Yes Yes 1 euckr_bin euckr 85   Yes 1 koi8u_general_ci koi8u 22 Yes Yes 1 koi8u_bin koi8u 75   Yes 1 gb2312_chinese_ci gb2312 24 Yes Yes 1 gb2312_bin gb2312 86   Yes 1 greek_general_ci greek 25 Yes Yes 1 greek_bin greek 70   Yes 1 cp1250_general_ci cp1250 26 Yes Yes 1 cp1250_czech_cs cp1250 34   Yes 2 cp1250_croatian_ci cp1250 44   Yes 1 cp1250_bin cp1250 66   Yes 1 cp1250_polish_ci cp1250 99   Yes 1 gbk_chinese_ci gbk 28 Yes Yes 1 gbk_bin gbk 87   Yes 1 latin5_turkish_ci latin5 30 Yes Yes 1 latin5_bin latin5 78   Yes 1 armscii8_general_ci armscii8 32 Yes Yes 1 armscii8_bin armscii8 64   Yes 1 utf8_general_ci utf8 33 Yes Yes 1 utf8_bin utf8 83   Yes 1 utf8_unicode_ci utf8 192   Yes 8 utf8_icelandic_ci utf8 193   Yes 8 utf8_latvian_ci utf8 194   Yes 8 utf8_romanian_ci utf8 195   Yes 8 utf8_slovenian_ci utf8 196   Yes 8 utf8_polish_ci utf8 197   Yes 8 utf8_estonian_ci utf8 198   Yes 8 utf8_spanish_ci utf8 199   Yes 8 utf8_swedish_ci utf8 200   Yes 8 utf8_turkish_ci utf8 201   Yes 8 utf8_czech_ci utf8 202   Yes 8 utf8_danish_ci utf8 203   Yes 8 utf8_lithuanian_ci utf8 204   Yes 8 utf8_slovak_ci utf8 205   Yes 8 utf8_spanish2_ci utf8 206   Yes 8 utf8_roman_ci utf8 207   Yes 8 utf8_persian_ci utf8 208   Yes 8 utf8_esperanto_ci utf8 209   Yes 8 utf8_hungarian_ci utf8 210   Yes 8 utf8_sinhala_ci utf8 211   Yes 8 utf8_german2_ci utf8 212   Yes 8 utf8_croatian_mysql561_ci utf8 213   Yes 8 utf8_unicode_520_ci utf8 214   Yes 8 utf8_vietnamese_ci utf8 215   Yes 8 utf8_general_mysql500_ci utf8 223   Yes 1 utf8_croatian_ci utf8 576   Yes 8 utf8_myanmar_ci utf8 577   Yes 8 ucs2_general_ci ucs2 35 Yes Yes 1 ucs2_bin ucs2 90   Yes 1 ucs2_unicode_ci ucs2 128   Yes 8 ucs2_icelandic_ci ucs2 129   Yes 8 ucs2_latvian_ci ucs2 130   Yes 8 ucs2_romanian_ci ucs2 131   Yes 8 ucs2_slovenian_ci ucs2 132   Yes 8 ucs2_polish_ci ucs2 133   Yes 8 ucs2_estonian_ci ucs2 134   Yes 8 ucs2_spanish_ci ucs2 135   Yes 8 ucs2_swedish_ci ucs2 136   Yes 8 ucs2_turkish_ci ucs2 137   Yes 8 ucs2_czech_ci ucs2 138   Yes 8 ucs2_danish_ci ucs2 139   Yes 8 ucs2_lithuanian_ci ucs2 140   Yes 8 ucs2_slovak_ci ucs2 141   Yes 8 ucs2_spanish2_ci ucs2 142   Yes 8 ucs2_roman_ci ucs2 143   Yes 8 ucs2_persian_ci ucs2 144   Yes 8 ucs2_esperanto_ci ucs2 145   Yes 8 ucs2_hungarian_ci ucs2 146   Yes 8 ucs2_sinhala_ci ucs2 147   Yes 8 ucs2_german2_ci ucs2 148   Yes 8 ucs2_croatian_mysql561_ci ucs2 149   Yes 8 ucs2_unicode_520_ci ucs2 150   Yes 8 ucs2_vietnamese_ci ucs2 151   Yes 8 ucs2_general_mysql500_ci ucs2 159   Yes 1 ucs2_croatian_ci ucs2 640   Yes 8 ucs2_myanmar_ci ucs2 641   Yes 8 cp866_general_ci cp866 36 Yes Yes 1 cp866_bin cp866 68   Yes 1 keybcs2_general_ci keybcs2 37 Yes Yes 1 keybcs2_bin keybcs2 73   Yes 1 macce_general_ci macce 38 Yes Yes 1 macce_bin macce 43   Yes 1 macroman_general_ci macroman 39 Yes Yes 1 macroman_bin macroman 53   Yes 1 cp852_general_ci cp852 40 Yes Yes 1 cp852_bin cp852 81   Yes 1 latin7_estonian_cs latin7 20   Yes 1 latin7_general_ci latin7 41 Yes Yes 1 latin7_general_cs latin7 42   Yes 1 latin7_bin latin7 79   Yes 1 utf8mb4_general_ci utf8mb4 45 Yes Yes 1 utf8mb4_bin utf8mb4 46   Yes 1 utf8mb4_unicode_ci utf8mb4 224   Yes 8 utf8mb4_icelandic_ci utf8mb4 225   Yes 8 utf8mb4_latvian_ci utf8mb4 226   Yes 8 utf8mb4_romanian_ci utf8mb4 227   Yes 8 utf8mb4_slovenian_ci utf8mb4 228   Yes 8 utf8mb4_polish_ci utf8mb4 229   Yes 8 utf8mb4_estonian_ci utf8mb4 230   Yes 8 utf8mb4_spanish_ci utf8mb4 231   Yes 8 utf8mb4_swedish_ci utf8mb4 232   Yes 8 utf8mb4_turkish_ci utf8mb4 233   Yes 8 utf8mb4_czech_ci utf8mb4 234   Yes 8 utf8mb4_danish_ci utf8mb4 235   Yes 8 utf8mb4_lithuanian_ci utf8mb4 236   Yes 8 utf8mb4_slovak_ci utf8mb4 237   Yes 8 utf8mb4_spanish2_ci utf8mb4 238   Yes 8 utf8mb4_roman_ci utf8mb4 239   Yes 8 utf8mb4_persian_ci utf8mb4 240   Yes 8 utf8mb4_esperanto_ci utf8mb4 241   Yes 8 utf8mb4_hungarian_ci utf8mb4 242   Yes 8 utf8mb4_sinhala_ci utf8mb4 243   Yes 8 utf8mb4_german2_ci utf8mb4 244   Yes 8 utf8mb4_croatian_mysql561_ci utf8mb4 245   Yes 8 utf8mb4_unicode_520_ci utf8mb4 246   Yes 8 utf8mb4_vietnamese_ci utf8mb4 247   Yes 8 utf8mb4_croatian_ci utf8mb4 608   Yes 8 utf8mb4_myanmar_ci utf8mb4 609   Yes 8 cp1251_bulgarian_ci cp1251 14   Yes 1 cp1251_ukrainian_ci cp1251 23   Yes 1 cp1251_bin cp1251 50   Yes 1 cp1251_general_ci cp1251 51 Yes Yes 1 cp1251_general_cs cp1251 52   Yes 1 utf16_general_ci utf16 54 Yes Yes 1 utf16_bin utf16 55   Yes 1 utf16_unicode_ci utf16 101   Yes 8 utf16_icelandic_ci utf16 102   Yes 8 utf16_latvian_ci utf16 103   Yes 8 utf16_romanian_ci utf16 104   Yes 8 utf16_slovenian_ci utf16 105   Yes 8 utf16_polish_ci utf16 106   Yes 8 utf16_estonian_ci utf16 107   Yes 8 utf16_spanish_ci utf16 108   Yes 8 utf16_swedish_ci utf16 109   Yes 8 utf16_turkish_ci utf16 110   Yes 8 utf16_czech_ci utf16 111   Yes 8 utf16_danish_ci utf16 112   Yes 8 utf16_lithuanian_ci utf16 113   Yes 8 utf16_slovak_ci utf16 114   Yes 8 utf16_spanish2_ci utf16 115   Yes 8 utf16_roman_ci utf16 116   Yes 8 utf16_persian_ci utf16 117   Yes 8 utf16_esperanto_ci utf16 118   Yes 8 utf16_hungarian_ci utf16 119   Yes 8 utf16_sinhala_ci utf16 120   Yes 8 utf16_german2_ci utf16 121   Yes 8 utf16_croatian_mysql561_ci utf16 122   Yes 8 utf16_unicode_520_ci utf16 123   Yes 8 utf16_vietnamese_ci utf16 124   Yes 8 utf16_croatian_ci utf16 672   Yes 8 utf16_myanmar_ci utf16 673   Yes 8 utf16le_general_ci utf16le 56 Yes Yes 1 utf16le_bin utf16le 62   Yes 1 cp1256_general_ci cp1256 57 Yes Yes 1 cp1256_bin cp1256 67   Yes 1 cp1257_lithuanian_ci cp1257 29   Yes 1 cp1257_bin cp1257 58   Yes 1 cp1257_general_ci cp1257 59 Yes Yes 1 utf32_general_ci utf32 60 Yes Yes 1 utf32_bin utf32 61   Yes 1 utf32_unicode_ci utf32 160   Yes 8 utf32_icelandic_ci utf32 161   Yes 8 utf32_latvian_ci utf32 162   Yes 8 utf32_romanian_ci utf32 163   Yes 8 utf32_slovenian_ci utf32 164   Yes 8 utf32_polish_ci utf32 165   Yes 8 utf32_estonian_ci utf32 166   Yes 8 utf32_spanish_ci utf32 167   Yes 8 utf32_swedish_ci utf32 168   Yes 8 utf32_turkish_ci utf32 169   Yes 8 utf32_czech_ci utf32 170   Yes 8 utf32_danish_ci utf32 171   Yes 8 utf32_lithuanian_ci utf32 172   Yes 8 utf32_slovak_ci utf32 173   Yes 8 utf32_spanish2_ci utf32 174   Yes 8 utf32_roman_ci utf32 175   Yes 8 utf32_persian_ci utf32 176   Yes 8 utf32_esperanto_ci utf32 177   Yes 8 utf32_hungarian_ci utf32 178   Yes 8 utf32_sinhala_ci utf32 179   Yes 8 utf32_german2_ci utf32 180   Yes 8 utf32_croatian_mysql561_ci utf32 181   Yes 8 utf32_unicode_520_ci utf32 182   Yes 8 utf32_vietnamese_ci utf32 183   Yes 8 utf32_croatian_ci utf32 736   Yes 8 utf32_myanmar_ci utf32 737   Yes 8 binary binary 63 Yes Yes 1 geostd8_general_ci geostd8 92 Yes Yes 1 geostd8_bin geostd8 93   Yes 1 cp932_japanese_ci cp932 95 Yes Yes 1 cp932_bin cp932 96   Yes 1 eucjpms_japanese_ci eucjpms 97 Yes Yes 1 eucjpms_bin eucjpms 98   Yes 1 ----------------------------- -------- --- ------- -------- --------+ 229 rows in set (0.00 sec)

Diego Dupin added a comment - 2016-02-11 15:46 That's strange, When driver open a connection to server, server is sending some information like the server charset (that must be the "character_set_server" value, i have to check). it's like server was sending a server charset not "utf8mb4" but binary. I've forced the character set to binary to confirm, and i reproduce the exact exception you have. binary is the only option without charset, because there is no conversion so. The mysql driver is using "ISO8859_1" for binary. I will digg further, but just to be sure: when having this error you were using a MariaDB 10.1.11 server on ubuntu 14.4, right ?

Suwon Chae added a comment - 2016-02-12 07:44 Thanks diego dupin We're using batchUpdate of SpringJdbcTemplate. There isn't nothing special. Starting point is here. int[] updateCounts = jdbcTemplate.batchUpdate(getInsertSql(), new BatchPreparedStatementSetter() { and you can see the full exception logs. By the way, Is there any recommendations about my.cnf and JDBC connection string when using utf8mb4?

Sverker Abrahamsson added a comment - 2016-02-15 12:50 I just ran into the same issue (or very similar), but from a different angle: Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: could not execute statement at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1763) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1683) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1187) at org.jboss.as.jpa.container.AbstractEntityManager.persist(AbstractEntityManager.java:580) at com.comhem.ingester.core.IngestController.registerAsset(IngestController.java:175) Caused by: org.hibernate.exception.GenericJDBCException: could not execute statement at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:211) at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96) at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3032) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3558) at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:98) at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:492) at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:197) at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:181) at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:216) at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:334) at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:289) at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:195) at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:126) at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWithGeneratedId(JpaPersistEventListener.java:84) at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:206) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:149) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:75) at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1181) ... 164 more Caused by: java.sql.SQLException: Error at org.jboss.jca.adapters.jdbc.WrappedConnection.checkException(WrappedConnection.java:1942) at org.jboss.jca.adapters.jdbc.WrappedStatement.checkException(WrappedStatement.java:1437) at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeUpdate(WrappedPreparedStatement.java:541) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:208) ... 185 more Caused by: java.lang.NullPointerException at java.lang.String.getBytes(String.java:917) at org.mariadb.jdbc.internal.stream.PacketOutputStream.sendStream(PacketOutputStream.java:182) at org.mariadb.jdbc.internal.packet.dao.parameters.ReaderParameter.writeBinary(ReaderParameter.java:134) at org.mariadb.jdbc.internal.packet.send.SendPrepareParameterPacket.send(SendPrepareParameterPacket.java:93) at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.executePreparedQuery(AbstractQueryProtocol.java:574) at org.mariadb.jdbc.MariaDbServerPreparedStatement.executeInternal(MariaDbServerPreparedStatement.java:281) at org.mariadb.jdbc.MariaDbServerPreparedStatement.execute(MariaDbServerPreparedStatement.java:371) at org.mariadb.jdbc.MariaDbServerPreparedStatement.executeUpdate(MariaDbServerPreparedStatement.java:349) at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeUpdate(WrappedPreparedStatement.java:537) ... 186 more My environment is MariaDB Connector 1.3.4 (tried to update to 1.3.5 but no difference), hibernate 4.3.10.FINAL, MariaDB server 10.1.9 and CentOS 7.2.1511. This application has worked fine before with the same versions as above. The problem started to occur when I deployed a new version, but there has been no change to the object that is persisted when the error happens nor what I can see in any of the persistence nor database connections.

Sverker Abrahamsson added a comment - 2016-02-15 12:54 My output from the above queries: MariaDB [(none)] > SHOW variables like 'char%'; ------------------------- ---------------------------+ Variable_name Value ------------------------- ---------------------------+ character_set_client utf8 character_set_connection utf8 character_set_database utf8 character_set_filesystem binary character_set_results utf8 character_set_server utf8 character_set_system utf8 character_sets_dir /usr/share/mysql/charsets/ ------------------------- ---------------------------+ 8 rows in set (0.00 sec) MariaDB [(none)] > SHOW CHARACTER SET; --------- --------------------------- ------------------- -------+ Charset Description Default collation Maxlen --------- --------------------------- ------------------- -------+ big5 Big5 Traditional Chinese big5_chinese_ci 2 dec8 DEC West European dec8_swedish_ci 1 cp850 DOS West European cp850_general_ci 1 hp8 HP West European hp8_english_ci 1 koi8r KOI8-R Relcom Russian koi8r_general_ci 1 latin1 cp1252 West European latin1_swedish_ci 1 latin2 ISO 8859-2 Central European latin2_general_ci 1 swe7 7bit Swedish swe7_swedish_ci 1 ascii US ASCII ascii_general_ci 1 ujis EUC-JP Japanese ujis_japanese_ci 3 sjis Shift-JIS Japanese sjis_japanese_ci 2 hebrew ISO 8859-8 Hebrew hebrew_general_ci 1 tis620 TIS620 Thai tis620_thai_ci 1 euckr EUC-KR Korean euckr_korean_ci 2 koi8u KOI8-U Ukrainian koi8u_general_ci 1 gb2312 GB2312 Simplified Chinese gb2312_chinese_ci 2 greek ISO 8859-7 Greek greek_general_ci 1 cp1250 Windows Central European cp1250_general_ci 1 gbk GBK Simplified Chinese gbk_chinese_ci 2 latin5 ISO 8859-9 Turkish latin5_turkish_ci 1 armscii8 ARMSCII-8 Armenian armscii8_general_ci 1 utf8 UTF-8 Unicode utf8_general_ci 3 ucs2 UCS-2 Unicode ucs2_general_ci 2 cp866 DOS Russian cp866_general_ci 1 keybcs2 DOS Kamenicky Czech-Slovak keybcs2_general_ci 1 macce Mac Central European macce_general_ci 1 macroman Mac West European macroman_general_ci 1 cp852 DOS Central European cp852_general_ci 1 latin7 ISO 8859-13 Baltic latin7_general_ci 1 utf8mb4 UTF-8 Unicode utf8mb4_general_ci 4 cp1251 Windows Cyrillic cp1251_general_ci 1 utf16 UTF-16 Unicode utf16_general_ci 4 utf16le UTF-16LE Unicode utf16le_general_ci 4 cp1256 Windows Arabic cp1256_general_ci 1 cp1257 Windows Baltic cp1257_general_ci 1 utf32 UTF-32 Unicode utf32_general_ci 4 binary Binary pseudo charset binary 1 geostd8 GEOSTD8 Georgian geostd8_general_ci 1 cp932 SJIS for Windows Japanese cp932_japanese_ci 2 eucjpms UJIS for Windows Japanese eucjpms_japanese_ci 3 --------- --------------------------- ------------------- -------+ 40 rows in set (0.00 sec) MariaDB [(none)] > SHOW COLLATION; ----------------------------- -------- --- ------- -------- --------+ Collation Charset Id Default Compiled Sortlen ----------------------------- -------- --- ------- -------- --------+ big5_chinese_ci big5 1 Yes Yes 1 big5_bin big5 84   Yes 1 dec8_swedish_ci dec8 3 Yes Yes 1 dec8_bin dec8 69   Yes 1 cp850_general_ci cp850 4 Yes Yes 1 cp850_bin cp850 80   Yes 1 hp8_english_ci hp8 6 Yes Yes 1 hp8_bin hp8 72   Yes 1 koi8r_general_ci koi8r 7 Yes Yes 1 koi8r_bin koi8r 74   Yes 1 latin1_german1_ci latin1 5   Yes 1 latin1_swedish_ci latin1 8 Yes Yes 1 latin1_danish_ci latin1 15   Yes 1 latin1_german2_ci latin1 31   Yes 2 latin1_bin latin1 47   Yes 1 latin1_general_ci latin1 48   Yes 1 latin1_general_cs latin1 49   Yes 1 latin1_spanish_ci latin1 94   Yes 1 latin2_czech_cs latin2 2   Yes 4 latin2_general_ci latin2 9 Yes Yes 1 latin2_hungarian_ci latin2 21   Yes 1 latin2_croatian_ci latin2 27   Yes 1 latin2_bin latin2 77   Yes 1 swe7_swedish_ci swe7 10 Yes Yes 1 swe7_bin swe7 82   Yes 1 ascii_general_ci ascii 11 Yes Yes 1 ascii_bin ascii 65   Yes 1 ujis_japanese_ci ujis 12 Yes Yes 1 ujis_bin ujis 91   Yes 1 sjis_japanese_ci sjis 13 Yes Yes 1 sjis_bin sjis 88   Yes 1 hebrew_general_ci hebrew 16 Yes Yes 1 hebrew_bin hebrew 71   Yes 1 tis620_thai_ci tis620 18 Yes Yes 4 tis620_bin tis620 89   Yes 1 euckr_korean_ci euckr 19 Yes Yes 1 euckr_bin euckr 85   Yes 1 koi8u_general_ci koi8u 22 Yes Yes 1 koi8u_bin koi8u 75   Yes 1 gb2312_chinese_ci gb2312 24 Yes Yes 1 gb2312_bin gb2312 86   Yes 1 greek_general_ci greek 25 Yes Yes 1 greek_bin greek 70   Yes 1 cp1250_general_ci cp1250 26 Yes Yes 1 cp1250_czech_cs cp1250 34   Yes 2 cp1250_croatian_ci cp1250 44   Yes 1 cp1250_bin cp1250 66   Yes 1 cp1250_polish_ci cp1250 99   Yes 1 gbk_chinese_ci gbk 28 Yes Yes 1 gbk_bin gbk 87   Yes 1 latin5_turkish_ci latin5 30 Yes Yes 1 latin5_bin latin5 78   Yes 1 armscii8_general_ci armscii8 32 Yes Yes 1 armscii8_bin armscii8 64   Yes 1 utf8_general_ci utf8 33 Yes Yes 1 utf8_bin utf8 83   Yes 1 utf8_unicode_ci utf8 192   Yes 8 utf8_icelandic_ci utf8 193   Yes 8 utf8_latvian_ci utf8 194   Yes 8 utf8_romanian_ci utf8 195   Yes 8 utf8_slovenian_ci utf8 196   Yes 8 utf8_polish_ci utf8 197   Yes 8 utf8_estonian_ci utf8 198   Yes 8 utf8_spanish_ci utf8 199   Yes 8 utf8_swedish_ci utf8 200   Yes 8 utf8_turkish_ci utf8 201   Yes 8 utf8_czech_ci utf8 202   Yes 8 utf8_danish_ci utf8 203   Yes 8 utf8_lithuanian_ci utf8 204   Yes 8 utf8_slovak_ci utf8 205   Yes 8 utf8_spanish2_ci utf8 206   Yes 8 utf8_roman_ci utf8 207   Yes 8 utf8_persian_ci utf8 208   Yes 8 utf8_esperanto_ci utf8 209   Yes 8 utf8_hungarian_ci utf8 210   Yes 8 utf8_sinhala_ci utf8 211   Yes 8 utf8_german2_ci utf8 212   Yes 8 utf8_croatian_mysql561_ci utf8 213   Yes 8 utf8_unicode_520_ci utf8 214   Yes 8 utf8_vietnamese_ci utf8 215   Yes 8 utf8_general_mysql500_ci utf8 223   Yes 1 utf8_croatian_ci utf8 576   Yes 8 utf8_myanmar_ci utf8 577   Yes 8 ucs2_general_ci ucs2 35 Yes Yes 1 ucs2_bin ucs2 90   Yes 1 ucs2_unicode_ci ucs2 128   Yes 8 ucs2_icelandic_ci ucs2 129   Yes 8 ucs2_latvian_ci ucs2 130   Yes 8 ucs2_romanian_ci ucs2 131   Yes 8 ucs2_slovenian_ci ucs2 132   Yes 8 ucs2_polish_ci ucs2 133   Yes 8 ucs2_estonian_ci ucs2 134   Yes 8 ucs2_spanish_ci ucs2 135   Yes 8 ucs2_swedish_ci ucs2 136   Yes 8 ucs2_turkish_ci ucs2 137   Yes 8 ucs2_czech_ci ucs2 138   Yes 8 ucs2_danish_ci ucs2 139   Yes 8 ucs2_lithuanian_ci ucs2 140   Yes 8 ucs2_slovak_ci ucs2 141   Yes 8 ucs2_spanish2_ci ucs2 142   Yes 8 ucs2_roman_ci ucs2 143   Yes 8 ucs2_persian_ci ucs2 144   Yes 8 ucs2_esperanto_ci ucs2 145   Yes 8 ucs2_hungarian_ci ucs2 146   Yes 8 ucs2_sinhala_ci ucs2 147   Yes 8 ucs2_german2_ci ucs2 148   Yes 8 ucs2_croatian_mysql561_ci ucs2 149   Yes 8 ucs2_unicode_520_ci ucs2 150   Yes 8 ucs2_vietnamese_ci ucs2 151   Yes 8 ucs2_general_mysql500_ci ucs2 159   Yes 1 ucs2_croatian_ci ucs2 640   Yes 8 ucs2_myanmar_ci ucs2 641   Yes 8 cp866_general_ci cp866 36 Yes Yes 1 cp866_bin cp866 68   Yes 1 keybcs2_general_ci keybcs2 37 Yes Yes 1 keybcs2_bin keybcs2 73   Yes 1 macce_general_ci macce 38 Yes Yes 1 macce_bin macce 43   Yes 1 macroman_general_ci macroman 39 Yes Yes 1 macroman_bin macroman 53   Yes 1 cp852_general_ci cp852 40 Yes Yes 1 cp852_bin cp852 81   Yes 1 latin7_estonian_cs latin7 20   Yes 1 latin7_general_ci latin7 41 Yes Yes 1 latin7_general_cs latin7 42   Yes 1 latin7_bin latin7 79   Yes 1 utf8mb4_general_ci utf8mb4 45 Yes Yes 1 utf8mb4_bin utf8mb4 46   Yes 1 utf8mb4_unicode_ci utf8mb4 224   Yes 8 utf8mb4_icelandic_ci utf8mb4 225   Yes 8 utf8mb4_latvian_ci utf8mb4 226   Yes 8 utf8mb4_romanian_ci utf8mb4 227   Yes 8 utf8mb4_slovenian_ci utf8mb4 228   Yes 8 utf8mb4_polish_ci utf8mb4 229   Yes 8 utf8mb4_estonian_ci utf8mb4 230   Yes 8 utf8mb4_spanish_ci utf8mb4 231   Yes 8 utf8mb4_swedish_ci utf8mb4 232   Yes 8 utf8mb4_turkish_ci utf8mb4 233   Yes 8 utf8mb4_czech_ci utf8mb4 234   Yes 8 utf8mb4_danish_ci utf8mb4 235   Yes 8 utf8mb4_lithuanian_ci utf8mb4 236   Yes 8 utf8mb4_slovak_ci utf8mb4 237   Yes 8 utf8mb4_spanish2_ci utf8mb4 238   Yes 8 utf8mb4_roman_ci utf8mb4 239   Yes 8 utf8mb4_persian_ci utf8mb4 240   Yes 8 utf8mb4_esperanto_ci utf8mb4 241   Yes 8 utf8mb4_hungarian_ci utf8mb4 242   Yes 8 utf8mb4_sinhala_ci utf8mb4 243   Yes 8 utf8mb4_german2_ci utf8mb4 244   Yes 8 utf8mb4_croatian_mysql561_ci utf8mb4 245   Yes 8 utf8mb4_unicode_520_ci utf8mb4 246   Yes 8 utf8mb4_vietnamese_ci utf8mb4 247   Yes 8 utf8mb4_croatian_ci utf8mb4 608   Yes 8 utf8mb4_myanmar_ci utf8mb4 609   Yes 8 cp1251_bulgarian_ci cp1251 14   Yes 1 cp1251_ukrainian_ci cp1251 23   Yes 1 cp1251_bin cp1251 50   Yes 1 cp1251_general_ci cp1251 51 Yes Yes 1 cp1251_general_cs cp1251 52   Yes 1 utf16_general_ci utf16 54 Yes Yes 1 utf16_bin utf16 55   Yes 1 utf16_unicode_ci utf16 101   Yes 8 utf16_icelandic_ci utf16 102   Yes 8 utf16_latvian_ci utf16 103   Yes 8 utf16_romanian_ci utf16 104   Yes 8 utf16_slovenian_ci utf16 105   Yes 8 utf16_polish_ci utf16 106   Yes 8 utf16_estonian_ci utf16 107   Yes 8 utf16_spanish_ci utf16 108   Yes 8 utf16_swedish_ci utf16 109   Yes 8 utf16_turkish_ci utf16 110   Yes 8 utf16_czech_ci utf16 111   Yes 8 utf16_danish_ci utf16 112   Yes 8 utf16_lithuanian_ci utf16 113   Yes 8 utf16_slovak_ci utf16 114   Yes 8 utf16_spanish2_ci utf16 115   Yes 8 utf16_roman_ci utf16 116   Yes 8 utf16_persian_ci utf16 117   Yes 8 utf16_esperanto_ci utf16 118   Yes 8 utf16_hungarian_ci utf16 119   Yes 8 utf16_sinhala_ci utf16 120   Yes 8 utf16_german2_ci utf16 121   Yes 8 utf16_croatian_mysql561_ci utf16 122   Yes 8 utf16_unicode_520_ci utf16 123   Yes 8 utf16_vietnamese_ci utf16 124   Yes 8 utf16_croatian_ci utf16 672   Yes 8 utf16_myanmar_ci utf16 673   Yes 8 utf16le_general_ci utf16le 56 Yes Yes 1 utf16le_bin utf16le 62   Yes 1 cp1256_general_ci cp1256 57 Yes Yes 1 cp1256_bin cp1256 67   Yes 1 cp1257_lithuanian_ci cp1257 29   Yes 1 cp1257_bin cp1257 58   Yes 1 cp1257_general_ci cp1257 59 Yes Yes 1 utf32_general_ci utf32 60 Yes Yes 1 utf32_bin utf32 61   Yes 1 utf32_unicode_ci utf32 160   Yes 8 utf32_icelandic_ci utf32 161   Yes 8 utf32_latvian_ci utf32 162   Yes 8 utf32_romanian_ci utf32 163   Yes 8 utf32_slovenian_ci utf32 164   Yes 8 utf32_polish_ci utf32 165   Yes 8 utf32_estonian_ci utf32 166   Yes 8 utf32_spanish_ci utf32 167   Yes 8 utf32_swedish_ci utf32 168   Yes 8 utf32_turkish_ci utf32 169   Yes 8 utf32_czech_ci utf32 170   Yes 8 utf32_danish_ci utf32 171   Yes 8 utf32_lithuanian_ci utf32 172   Yes 8 utf32_slovak_ci utf32 173   Yes 8 utf32_spanish2_ci utf32 174   Yes 8 utf32_roman_ci utf32 175   Yes 8 utf32_persian_ci utf32 176   Yes 8 utf32_esperanto_ci utf32 177   Yes 8 utf32_hungarian_ci utf32 178   Yes 8 utf32_sinhala_ci utf32 179   Yes 8 utf32_german2_ci utf32 180   Yes 8 utf32_croatian_mysql561_ci utf32 181   Yes 8 utf32_unicode_520_ci utf32 182   Yes 8 utf32_vietnamese_ci utf32 183   Yes 8 utf32_croatian_ci utf32 736   Yes 8 utf32_myanmar_ci utf32 737   Yes 8 binary binary 63 Yes Yes 1 geostd8_general_ci geostd8 92 Yes Yes 1 geostd8_bin geostd8 93   Yes 1 cp932_japanese_ci cp932 95 Yes Yes 1 cp932_bin cp932 96   Yes 1 eucjpms_japanese_ci eucjpms 97 Yes Yes 1 eucjpms_bin eucjpms 98   Yes 1 ----------------------------- -------- --- ------- -------- --------+ 229 rows in set (0.00 sec)

Diego Dupin added a comment - 2016-02-19 17:28 Correction done in next version 1.3.6 (release in a few days). Now all client / DB exchanges use UTF-8 datas. This permit to avoid the specific charset implementation for Statement.setCharacterStream() and setClob ( and permitting to avoid this npe possibility) commit : https://github.com/MariaDB/mariadb-connector-j/commit/012b8c3645e78c92652318f6588a27d7f51ef5db

Suwon Chae added a comment - 2016-02-19 20:12 Wow! Thanks diego. : )