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apache / pinot

Apache Pinot - A realtime distributed OLAP datastore
https://pinot.apache.org/
Apache License 2.0
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Pinot compilation errors with Java 11 #3625

Closed mcvsubbu closed 1 year ago

mcvsubbu commented 5 years ago

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile (default-compile) on project pinot-core: Compilation failure: Compilation failure: [ERROR] /Users/kishoreg/projects/incubator-pinot/pinot-core/src/main/java/com/linkedin/pinot/core/segment/memory/PinotByteBuffer.java:[27,17] DirectBuffer is internal proprietary API and may be removed in a future release [ERROR] /Users/kishoreg/projects/incubator-pinot/pinot-core/src/main/java/com/linkedin/pinot/core/segment/memory/PinotByteBuffer.java:[26,15] error: cannot find symbol [ERROR] symbol: class Cleaner [ERROR] location: package sun.misc [ERROR] /Users/kishoreg/projects/incubator-pinot/pinot-core/src/main/java/com/linkedin/pinot/core/segment/memory/PinotByteBuffer.java:[27,17] DirectBuffer is internal proprietary API and may be removed in a future release

rustkas commented 5 years ago

How to fix it?

vivekjj commented 5 years ago

How was this fixed? I get the exact same error.

kishoreg commented 5 years ago

@vivekjj Pinot is not tested with jdk 11. Please use JDK 9 for building and running Pinot.

vivekjj commented 5 years ago

Thanks!

lsabi commented 5 years ago

@kishoreg is there any plan/roadmap to support newer versions of java?

Also, the only mention that I could find on the docs about the supported java version(s) is in the getting started tutorial, see https://pinot.readthedocs.io/en/latest/getting_started.html.

Though it only says that is requires java 8 or later. As a new user I was compiling with java 11 and getting errors. Only by trying out with java 8 I managed to run pinot. It would be better to explicitly write the supported java versions in order for new users to go through the tutorial smoothly.

Thanks.

xiangfu0 commented 4 years ago

I've fixed those compilation error with java 11 and also added QuickStart tests to build Pinot with both JDK 8 and 11 for Travis.

Example: https://travis-ci.org/apache/incubator-pinot/builds/650497203