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Aitozi commented on FLINK-24755: -------------------------------- You can also refer to [https://stackoverflow.com/questions/46477989/intellij-doesnt-see-some-non-public-jdk-9-classes-during-compilation] for some information . I test by {{rm -rf flink-test-utils-parent/flink-test-utils-junit/target}} and run test with {{–release}} option enable it can reproduce the sun.misc not exist. ---- Regarding the previous ticket to change the target to 8 , I think it make sense to support flink still run on jdk8, but can we support jdk11 bytecode default, and give an opt to let user to build a target 8 (cause jdk11 bytecode run jdk11 is the standard way). I think, In this way this problem will disappear > sun.misc doesn't exist > ---------------------- > > Key: FLINK-24755 > URL: https://issues.apache.org/jira/browse/FLINK-24755 > Project: Flink > Issue Type: Bug > Components: Build System > Affects Versions: 1.15.0 > Reporter: Aitozi > Priority: Major > Attachments: image-2021-11-03-23-19-58-036.png, > image-2021-11-03-23-42-30-441.png > > > After FLINK-24634 , the default target is jdk8. When I running tests from > IDE, some compiler error come up. I revert the change and test again, It can > work now. It's also ok to build from command. > I can not quite figure it out , can you give some inputs [~chesnay] > !image-2021-11-03-23-19-58-036.png|width=1227,height=108! -- This message was sent by Atlassian Jira (v8.3.4#803005)