Ibatis 2: ORA-00911: invalid character error

org.springframework.jdbc.BadSqlGrammarException: SqlMapClient operation; bad SQL grammar []; nested
exception is com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/icms/biz/dao/ibatis/maps/StaffExpertise.xml.
--- The error occurred while applying a parameter map.
--- Check the STEXP.getActSEBSId-InlineParameterMap.
--- Check the statement (query failed).
--- Cause: java.sql.SQLException: ORA-00911: invalid character 

        at org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLEx
ceptionTranslator.java:97)
        at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(Abstrac
tFallbackSQLExceptionTranslator.java:72)
        at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(Abstrac
tFallbackSQLExceptionTranslator.java:80)
        at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(Abstrac
tFallbackSQLExceptionTranslator.java:80)
        at org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:212
)