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https://issues.apache.org/jira/browse/FLINK-16380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17049164#comment-17049164
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Robert Metzger edited comment on FLINK-16380 at 3/2/20 12:23 PM:
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I suspect an issue with our Azure, as this error is not occurring on travis
(reference: https://travis-ci.org/apache/flink/jobs/656930995)
was (Author: rmetzger):
I suspect an issue with our Azure, as this error is not occurring on travis
> AZP: Python test fails on jdk11 nightly test (misc profile)
> -----------------------------------------------------------
>
> Key: FLINK-16380
> URL: https://issues.apache.org/jira/browse/FLINK-16380
> Project: Flink
> Issue Type: Bug
> Components: Build System / Azure Pipelines
> Reporter: Robert Metzger
> Assignee: Robert Metzger
> Priority: Major
>
> Logs:
> https://dev.azure.com/rmetzger/Flink/_build/results?buildId=5779&view=logs&j=d5dbfc72-24cf-5a8f-e213-1ae80d4b2df8&t=cb83ed8c-7d59-59ba-b58d-25e43fbaa4b2
> {code}
> ----------------------------- Captured stderr call
> -----------------------------
> Error: A JNI error has occurred, please check your installation and try again
> Exception in thread "main" java.lang.UnsupportedClassVersionError:
> org/apache/flink/client/python/PythonGatewayServer 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
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:757)
> at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
> at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:495)
> ___________________ StreamTableWindowTests.test_over_window
> ____________________
> {code}
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