[DB2] SQLWarning chain holds value that is not a SQLWarning

[beefcow]

I try to insert a record into db2 using spring,while error occurred.
the error is as follows:
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Exception in thread "main" java.lang.Error: SQLWarning chain holds value that is not a SQLWarning
at java.sql.SQLWarning.getNextWarning(Unknown Source)
at org.springframework.jdbc.core.JdbcTemplate.handleW arnings(JdbcTemplate.java:1112)
at org.springframework.jdbc.core.JdbcTemplate.execute (JdbcTemplate.java:539)
at org.springframework.jdbc.core.JdbcTemplate.update( JdbcTemplate.java:739)
at org.springframework.jdbc.core.JdbcTemplate.update( JdbcTemplate.java:797)
at org.springframework.jdbc.core.JdbcTemplate.update( JdbcTemplate.java:805)
at com.ibm.pw.pps.migratorimpl.CSVToDB2Migrator.execu teInsert(CSVToDB2Migrator.java:184)
at com.ibm.pw.pps.migratorimpl.CSVToDB2Migrator.migra te(CSVToDB2Migrator.java:126)
at com.ibm.pw.pps.CSVMigrationManager.migrate(CSVMigr ationManager.java:458)
at com.ibm.pw.pps.CSVMigrationManager.migrate(CSVMigr ationManager.java:340)
at com.ibm.pw.pps.CSVMigrationUtility.main(CSVMigrati onUtility.java:178)
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and this is my code piece which throws the error:
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DataSource dataSource = getDataSourceFactory().getDataSource();
JdbcTemplate jdbcTempate = new JdbcTemplate(dataSource);
jdbcTempate.update(sql.toString(), params.toArray());
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I use spring.
the strange thing is that in spite of error, record is successfully inserted .

Any one has encounted this problem before or has any idea about this?
Thanks