How to call a stored procedure from a batch Tasklet Spring?

Specifies that TaskkeyStep in Spring Batch can be used to call a stored procedure. Can anyone provide an example of calling a stored procedure from a TaskletStep? So far I've done this, but it throws an exception: "Config problem: [callStoredProcedure] item is not available"

       <job id="job1">
          <step id="step1">
                <tasklet ref="myTasklet"/>
          </step>
       </job>

       <bean id="myTasklet" class="MyClass">
             <property name="dataSource" ref="dataSource"/>
             <property name="sql" value="call stored_procedure()"/>
       </bean>

      

        
        
        
      

    

Java class

        class MyClass implements Tasklet{
               @Override
               public RepeatStatus execute(StepContribution contribution,
        ChunkContext chunkContext) throws Exception {
                  JdbcTemplate myJDBC=new JdbcTemplate(getDataSource());
                  myJDBC.execute(sql);
                  return RepeatStatus.FINISHED;
             }      
        }

      

        
        
        
      

    

How and where should the stored procedure be configured? Would be grateful for getting any pointers?

Thanks and greetings