--Environment --Windows 10 Pro 64bit version 1909 - Payara Server 5.194 - Eclipse Version 2020-03 - openjdk version 11
I'm not sure what's wrong with debugging.
log
javax.batch.operations.JobStartException: java.lang.NullPointerException  
    at com.ibm.jbatch.container.api.impl.JobOperatorImpl.start(JobOperatorImpl.java:92)  
...abridgement... 
Caused by: java.lang.NullPointerException: null  
    at com.ibm.jbatch.container.jobinstance.JobExecutionHelper.startJob(JobExecutionHelper.java:125)  
    at com.ibm.jbatch.container.impl.BatchKernelImpl.startJob(BatchKernelImpl.java:124)  
    at com.ibm.jbatch.container.api.impl.JobOperatorImpl.startInternal(JobOperatorImpl.java:123)  
    at com.ibm.jbatch.container.api.impl.JobOperatorImpl.start(JobOperatorImpl.java:88)  
    ... 161 common frames omitted 
Apparently, JobOperatorImpl was fixed because it was related to Payara.
I used to do the same thing when I got an error that I didn't understand in GlassFish, but even if it became Payara ...
--Reference: JobOperatorImpl cannot be instantiated · Issue # 1103 · payara / Payara · GitHub --Reference: jakarta ee --NullPointerException running Batch job in WebLogic with managedScheduledExecutorService --Stack Overflow
#Delete these three directories. eclipseApps~I think that the directory must be Eclipse.
$ ls -la /c/apps/payara5/glassfish/domains/domain1/ | grep -e eclipse -e generated 
drwxr-xr-x 1 ponsuke 1049089 0 September 18 17:41 eclipseApps/ 
drwxr-xr-x 1 ponsuke 1049089 0 September 18 17:24 eclipseAppsTmp/ 
drwxr-xr-x 1 ponsuke 1049089 0 September 18 17:26 generated/