SqlException with message "Caught java.io.CharConversionException." and ERRORCODE=-4220

Troubleshooting

Problem

When an application uses the IBM Data Server Driver for JDBC and SQLJ (also known as the JCC driver) and is connected to a database with code set UTF-8 (code page 1208), it throws an SqlException with message including "Caught java.io.CharConversionException" and ERRORCODE=-4220 if the data in a character column that it queries contains a sequence of bytes that is not a valid UTF-8 string.

Symptom

An exception is thrown similar to this:
com.ibm.db2.jcc.am.SqlException: [jcc][t4][1065][12306][XXX.XXX.XXX] Caught java.io.CharConversionException. See attached Throwable for details. ERRORCODE=-4220, SQLSTATE=null [...] Caused by: java.nio.charset.MalformedInputException: Input length = XXX [...] Caused by: sun.io.MalformedInputException at sun.io.ByteToCharUTF8.convert(ByteToCharUTF8.java:XXX) [...]

[{"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Programming Interface - JDBC","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"9.7;9.5;10.1;10.5;11.1","Edition":"Advanced Enterprise Server;Advanced Workgroup Server;Enterprise Server;Express;Express-C;Personal;Workgroup Server","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

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Document Information

More support for:
Db2 for Linux, UNIX and Windows

Software version:
9.7, 9.5, 10.1, 10.5, 11.1

Operating system(s):
AIX, HP-UX, Linux, Solaris, Windows

Document number:
250689

Modified date:
30 April 2025

UID

swg21684365

IBM Support

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