$ mvn package   # final migrated project
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.029 s -- in com.ankurm.batch.JobTest
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
[INFO] BUILD SUCCESS

$ java -jar target/batch-migrated-1.0.0.jar
WRITE [sq1, sq4, sq9]
CHUNK DONE, items in chunk=3
WRITE [sq16, sq25, sq36]
CHUNK DONE, items in chunk=3
WRITE [sq49]
CHUNK DONE, items in chunk=1
STATUS COMPLETED exit=COMPLETED
INSTANCES 1
DONE true