pedro93 commented on pull request #9:
URL: https://github.com/apache/flink-docker/pull/9#issuecomment-661066312
@rmetzger thank you for your reply, to what extent does Flink have Java 11
support?
I've written a streaming job definition which has dependencies on Java 11
code (with `var`) and get the following exception:
```
The program finished with the following exception:
org.apache.flink.client.program.ProgramInvocationException: The main method
caused an error: Failed to execute job 'Flink Streaming Job (count events group
Zby card over 1 hour)'.
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:302)
at
org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:198)
at
org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:149)
at
org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:699)
at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:232)
at
org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:916)
at
org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:992)
at
org.apache.flink.runtime.security.contexts.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:992)
Caused by: org.apache.flink.util.FlinkException: Failed to execute job
'Flink Streaming Job (count events group Zby card over 1 hour)'.
at
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:1823)
at
org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:128)
at
org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:76)
at
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1699)
at
com.feedzai.railgun.tools.paper.flink.FlinkJob.main(FlinkJob.java:160)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:288)
... 8 more
Caused by: org.apache.flink.runtime.client.JobSubmissionException: Failed to
submit JobGraph.
at
org.apache.flink.client.program.rest.RestClusterClient.lambda$submitJob$7(RestClusterClient.java:366)
at
java.base/java.util.concurrent.CompletableFuture.uniExceptionally(Unknown
Source)
at
java.base/java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(Unknown
Source)
at
java.base/java.util.concurrent.CompletableFuture.postComplete(Unknown Source)
at
java.base/java.util.concurrent.CompletableFuture.completeExceptionally(Unknown
Source)
at
org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$8(FutureUtils.java:292)
at
java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(Unknown Source)
at
java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(Unknown
Source)
at
java.base/java.util.concurrent.CompletableFuture.postComplete(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.postFire(Unknown
Source)
at
java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(Unknown
Source)
at
java.base/java.util.concurrent.CompletableFuture$Completion.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown
Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.flink.runtime.rest.util.RestClientException: [Internal
server error., <Exception on server side:
org.apache.flink.runtime.client.JobSubmissionException: Failed to submit job.
at
org.apache.flink.runtime.dispatcher.Dispatcher.lambda$internalSubmitJob$3(Dispatcher.java:344)
at
java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:836)
at
java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:811)
at
java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:456)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40)
at
akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:44)
at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at
akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at
akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.UnsupportedClassVersionError: core/api/Event has been
compiled by a more recent version of the Java Runtime (class file version
55.0), this version of the Java Runtime only recognizes class file versions up
to 52.0
```
Having said this I will try to build an image myself as a workaround. Thanks
again!
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