Neither a 'Main-Class', nor a 'program-class' entry was found in the jar file.

jobmanager_1   | 2021-11-24 04:19:27,343 ERROR org.apache.flink.runtime.webmonitor.handlers.JarPlanHandler  [] - Unhandled exception.
jobmanager_1   | org.apache.flink.client.program.ProgramInvocationException: Neither a 'Main-Class', nor a 'program-class' entry was found in the jar file.
jobmanager_1   |        at org.apache.flink.client.program.PackagedProgram.getEntryPointClassNameFromJar(PackagedProgram.java:437) ~[flink-dist_2.12-1.14.0.jar:1.14.0]
jobmanager_1   |        at org.apache.flink.client.program.PackagedProgram.<init>(PackagedProgram.java:158) ~[flink-dist_2.12-1.14.0.jar:1.14.0]
jobmanager_1   |        at org.apache.flink.client.program.PackagedProgram.<init>(PackagedProgram.java:65) ~[flink-dist_2.12-1.14.0.jar:1.14.0]
jobmanager_1   |        at org.apache.flink.client.program.PackagedProgram$Builder.build(PackagedProgram.java:691) ~[flink-dist_2.12-1.14.0.jar:1.14.0]
jobmanager_1   |        at org.apache.flink.runtime.webmonitor.handlers.utils.JarHandlerUtils$JarHandlerContext.toPackagedProgram(JarHandlerUtils.java:182) ~[flink-dist_2.12-1.14.0.jar:1.14.0]
jobmanager_1   |        at org.apache.flink.runtime.webmonitor.handlers.JarPlanHandler.lambda$handleRequest$1(JarPlanHandler.java:105) ~[flink-dist_2.12-1.14.0.jar:1.14.0]
jobmanager_1   |        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1604) [?:1.8.0_312]
jobmanager_1   |        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_312]
jobmanager_1   |        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_312]
jobmanager_1   |        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [?:1.8.0_312]
jobmanager_1   |        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [?:1.8.0_312]
jobmanager_1   |        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_312]
jobmanager_1   |        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_312]
jobmanager_1   |        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_312]