--jar argument with spark-sql failed to load the jars to driver classpath

launch spark-sql as below

./bin/spark-sql --master local --jars=/opt/BigdataTools/summation.jar

create temporary function add as 'org.apache.spark.examples.CustomAdd';

after executing above line you can see the below error

Error in query: Can not load class 'org.apache.spark.examples.CustomAdd' when registering the function 'add', please make sure it is on the classpath;

Note:same command works for other spark version