Getting NullPointer exception in SqlMapDaoTemplate

[le...@jpmorgan.com]

I am getting a NullPointer Exception when trying to update in Oracle. It
only happens sporadically. I.e., it may work several times in a row, then
it would fail once and then it would work again. We looked at the code and
cannot understand why this is happening. And the line in the Ibatis source
code where the exception occurs does not explain anything. Any ideas?

7/21/06 9:20:32:328 EDT] 7e00de6b SystemErr     R     at
com.ibatis.dao.client.template.SqlMapDaoTemplate.update(SqlMapDaoTemplate.java:124)
Caused by:
[7/21/06 9:20:32:359 EDT] 7e00de6b SystemErr     R
com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in
com/tool/trans/proj/mytool/persistence/sqlmapdao/sql/Account.xml.
--- The error occurred while executing mapped statement.
--- Check the updateUserSubmit.
--- Check the statement or the result map.
--- Cause: java.lang.NullPointerException
Caused by: java.lang.NullPointerException
[7/21/06 9:20:32:359 EDT] 7e00de6b SystemErr     R    at
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUpdate(GeneralStatement.java:94)
[7/21/06 9:20:32:359 EDT] 7e00de6b SystemErr     R    at
com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.update(SqlMapExecutorDelegate.java:500)
[7/21/06 9:20:32:359 EDT] 7e00de6b SystemErr     R    at
com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.update(SqlMapSessionImpl.java:85)
[7/21/06 9:20:32:359 EDT] 7e00de6b SystemErr     R    at
com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.update(SqlMapClientImpl.java:62)

The mapping is
      <parameterMap id="userSubmit" class="user">
            <parameter property="submitted"                 jdbcType=
"VARCHAR"         javaType="java.lang.String"   mode="IN"/>
            <parameter property="modified_flag"       jdbcType="VARCHAR"
      javaType="java.lang.String"   mode="IN"/>
            <parameter property="acct_id"             jdbcType="VARCHAR"
      javaType="java.lang.String"   mode="IN"/>
            <parameter property="cusip"                     jdbcType=
"VARCHAR"         javaType="java.lang.String"   mode="IN"/>
            <parameter property="tran_code"           jdbcType="VARCHAR"
      javaType="java.lang.String"   mode="IN"/>
            <parameter property="shares"              jdbcType="VARCHAR"
      javaType="java.lang.String"   mode="IN"/>
            <parameter property="date"                jdbcType="TIMESTAMP"
javaType="java.sql.Timestamp"       mode="IN"/>
            <parameter property="submit_tm"           jdbcType="VARCHAR"
      javaType="java.lang.String"   mode="IN"/>
      </parameterMap>

      <update id="updateUserSubmit" parameterMap="userTransSubmit">
            UPDATE  MY_TABLE SET SUBMITTED=?, MODIFIED_FLAG=?,
SUBMIT_ON=SYSDATE WHERE ACCT_ID = ? AND CUSIP=? AND CODE=? AND SHARES=? AND
DATE = ?
            AND  SUBMIT_ON=TO_DATE(?,'YYYY-MM-DD HH24:MI:SSSSS')
    </update>



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