$ mvn test   # Boot 3.5.16, Batch 5.2.6, JDK 21
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.750 s -- in com.ankurm.batch.JobTest
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
[INFO] BUILD SUCCESS

$ java -jar target/batch-legacy-1.0.0.jar
WRITE [sq1, sq4, sq9]
CHUNK DONE, read so far=3
WRITE [sq16, sq25, sq36]
CHUNK DONE, read so far=6
WRITE [sq49]
CHUNK DONE, read so far=7
STATUS COMPLETED exit=COMPLETED
INSTANCES 1
DONE true