anmolnar commented on issue #760: ZOOKEEPER-3215: Handle Java 9/11 additions of covariant return types … URL: https://github.com/apache/zookeeper/pull/760#issuecomment-452734142 @vivekpatani Since Java 1.9 there's a `--release` switch for the javac compiler which sets the "source", "target" and "bootclasspath" properties in order to properly cross-compile. Wouldn't it be better to use that for cross-compile ZooKeeper instead of code change? I tested it on branch-3.4 and it works fine.
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