DatabasePasswordSecurerBean init-method not working in Spring Security

Caused by: java.lang.NullPointerException
at spring.board.security.DatabasePasswordSecurerBean$1.processRow(DatabasePasswordSecurerBean.java:47)
at org.springframework.jdbc.core.JdbcTemplate$RowCallbackHandlerResultSetExtractor.extractData(JdbcTemplate.java:1421)
at org.springframework.jdbc.core.JdbcTemplate$1QueryStatementCallback.doInStatement(JdbcTemplate.java:445)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:395)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:455)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:459)
at spring.board.security.DatabasePasswordSecurerBean.secureDatabase(DatabasePasswordSecurerBean.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1581)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
... 21 more

this error message...

I can't speak english very well but i have a problum so here ask ..

<security:http auto-config="true" use-expressions="true">  
    <security:intercept-url pattern="/login.do" access="permitAll" />
    <security:intercept-url pattern="/home.do" access="hasRole('ROLE_USER')" />
    <security:intercept-url pattern="/*" access="permitAll" />
    <!-- access denied page -->
    <security:access-denied-handler error-page="/error/403.do" />
    <security:form-login 
    login-page="/login.do" 
    default-target-url="/home.do"
    authentication-failure-url="/login.do?error"
    authentication-success-handler-ref="loginSuccessHandler" 
    authentication-failure-handler-ref="loginFailureHandler" />
    <security:remember-me key="ps-rmkey-paLLwApsifs24THosE62scabWow78PEaCh99Jus" token-validity-seconds="3600" data-source-ref="dataSource"/>
    <security:logout invalidate-session="true" logout-success-url="/all-list.do" logout-url="/logout.do"/>                          
</security:http>

<security:authentication-manager alias="authenticationManager">
    <security:authentication-provider user-service-ref="jdbcUserServiceCustom">
        <security:password-encoder ref="passwordEncoder">
            <security:salt-source ref="saltSource"/>
        </security:password-encoder>
    </security:authentication-provider>
</security:authentication-manager>

<bean id="jdbcUserServiceCustom" class="spring.board.security.CustomJdbcDaoImpl">
    <property name="dataSource" ref="dataSource"/>
    <property name="enableGroups" value="false" />
    <property name="enableAuthorities" value="true" />
    <property name="usersByUsernameQuery">
        <value>select username,password,enabled,salt from users where username = ?</value>
    </property>
    <property name="authoritiesByUsernameQuery">
        <value>select username, authority from authorities where username = ?</value>
    </property>
</bean>

<bean id="loginSuccessHandler" class="spring.board.handler.LoginSuccessHandler"></bean>
<bean id="loginFailureHandler" class="spring.board.handler.LoginFailureHandler"></bean>

<bean id="saltSource" class="org.springframework.security.authentication.dao.ReflectionSaltSource">
    <property name="userPropertyToUse" value="salt"/>
</bean>
<bean id="passwordEncoder" class="org.springframework.security.authentication.encoding.ShaPasswordEncoder"/>

<bean class="spring.board.security.DatabasePasswordSecurerBean" init-method="secureDatabase" depends-on="dataSource">
    <property name="dataSource" ref="dataSource"/>  
</bean>

this security-content.xml

and

public class DatabasePasswordSecurerBean extends JdbcDaoSupport {
@Autowired
private PasswordEncoder passwordEncoder;
@Autowired
private SaltSource saltSource;
@Autowired
private UserDetailsService userDetailsService;

public void secureDatabase() {


    getJdbcTemplate().query("select username, password from users", new RowCallbackHandler(){
        @Override
        public void processRow(ResultSet rs) throws SQLException {
            String username = rs.getString(1);
            String password = rs.getString(2);
            logger.info("ID: " + username + ", Password : " + password);


            UserDetails user = new User(username, password, true, true, true, true, AuthorityUtils.NO_AUTHORITIES);//userDetailsService.loadUserByUsername(username);

            String encodedPassword = passwordEncoder.encodePassword(password, saltSource.getSalt(user));
            getJdbcTemplate().update("update users set password = ? where username = ?", encodedPassword, username);
            logger.debug("Updating password for username: "+username+" to: "+encodedPassword);

        }           
    });
}

}

why error ? i think .. maybe .. @Authowired didn't not working well

.......

help me ... !!! please..