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Till Rohrmann commented on FLINK-8033: -------------------------------------- This is a very good pointer [~tasanuma0829]. We should check whether this also affects Flink's Java 9 support or not. If yes, then I guess that we still need to solve most of the Java 9 problems in order to support Java 11 but we could directly switch to it (maybe some problems only occur with Java 9 which we would not have to fix then). One of the big problems of adding Java 11 support is the removal of some of the unsafe APIs. Flink heavily uses them and we need to figure out how to properly replace them. The important bit is to make the replacement in a way that Flink's Java 8 version does not suffer from performance regressions. In the worst case, this could mean that we have different code paths for the different Java versions. > Build Flink with JDK 9 > ---------------------- > > Key: FLINK-8033 > URL: https://issues.apache.org/jira/browse/FLINK-8033 > Project: Flink > Issue Type: Improvement > Components: Build System > Affects Versions: 1.4.0 > Reporter: Hai Zhou > Assignee: Chesnay Schepler > Priority: Major > Labels: pull-request-available > > This is a JIRA to track all issues that found to make Flink compatible with > Java 9. -- This message was sent by Atlassian JIRA (v7.6.3#76005)