Thanks for the insight. I have switched to Java 8, and now a `mvn compile` works. However, there seems to be some oddity going on still. `mvn install -DskipITs -DskipTests` still produces an error:
``` [ERROR] /home/mweimer/nemo/incubator-nemo/runtime/executor/src/test/java/org/apache/nemo/runtime/executor/datatransfer/DataTransferT est.java:[55,45] package org.apache.nemo.runtime.master.metric does not exist ``` I also noticed that parallel builds don't succeed (`mvn -TC1 ...`). Maybe there is a dependency not captured in the build files? Maven has a tendency to satisfy these dependencies out of the local maven repository. However, I have no prior version of Nemo on my machine... Meanwhile, I vote +0 on the release not to hold it up :) Markus On Wed, Jan 22, 2020 at 9:07 AM 송원욱 <wsong0...@gmail.com> wrote: > > It seems like the problem comes with the protobuf library, which we keep the > version to 2.5.0 due to the dependency with REEF. It seems like the effort is > non-negligible, but I’ll raise an issue on JIRA: > https://issues.apache.org/jira/browse/NEMO-437 > <https://issues.apache.org/jira/browse/NEMO-437>. > > +1 in the meanwhile :) > > > On Jan 22, 2020, at 9:57 PM, 송원욱 <wsong0...@gmail.com> wrote: > > > > It succeeds with Java 8 on my Mac as well, but fails with JDK 11. I’ll see > > what’s required to support JDK 11 and we could measure if it would be > > doable before the release. > > > >> On Jan 22, 2020, at 10:41 AM, Markus Weimer <wei...@apache.org> wrote: > >> > >> Hi, > >> > >> I have tried to compile Nemo, and hit an error: > >> > >> ``` > >> [ERROR] Failed to execute goal > >> org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile > >> (default-compile) on project nemo-runtime-common: Compilation failure > >> [ERROR] > >> /home/mweimer/incubator-nemo/runtime/common/target/generated-sources/protobuf/grpc-java/org/apache/nemo/runtime/common/comm/MessageServiceGrpc.java:[23,18] > >> cannot find > >> symbol > >> [ERROR] symbol: class Generated > >> [ERROR] location: package javax.annotation > >> ``` > >> > >> I am doing this on Ubuntu 18.04 on the Windows Subsystem for Linux. I > >> installed `mvn` via `sudo apt install maven` which pulled in > >> `openjdk-11-jre-headless:amd64 (11.0.5+10-0ubuntu1.1~18.04)` as the > >> JDK. > >> > >> Has anyone else tried compiling on JDK 11? > >> > >> Thanks, > >> > >> Markus > >> > >> On Tue, Jan 21, 2020 at 3:58 PM Byung-Gon Chun <bgc...@gmail.com> wrote: > >>> > >>> Thanks, Sanha! > >>> > >>> +1 > >>> > >>> I checked the sha512 hash. > >>> I verified the signature. > >>> "mvn clean install" ran successfully. > >>> > >>> Great job! > >>> -Gon > >>> > >>> > >>> On Tue, Jan 21, 2020 at 11:53 PM Sanha Lee <sa...@apache.org> wrote: > >>> > >>>> Hello Nemo PPMC. > >>>> > >>>> Because it's been a while since we discussed the release 0.2, I'd like to > >>>> start voting. > >>>> > >>>> Please refer to the information below to vote on this release, and vote: > >>>> > >>>> [ ] +1 Release this package as Apache Nemo (incubating) 0.2.0 > >>>> [ ] 0 I don't feel strongly about it, but the release seems okay. > >>>> [ ] -1 Please do not release this package because... > >>>> > >>>> 1. Source release files: > >>>> https://dist.apache.org/repos/dist/dev/incubator/nemo/0.2-incubating/ > >>>> > >>>> 2. The release tag: > >>>> > >>>> https://github.com/apache/incubator-nemo/releases/tag/apache-nemo-0.2-incubating-rc1 > >>>> > >>>> > >>>> 3. The release hash: > >>>> > >>>> https://github.com/apache/incubator-nemo/commit/6ca51e92408aa4cdcc0c68697b6590baa839ab9b > >>>> > >>>> > >>>> 5. The KEYS file: > >>>> https://dist.apache.org/repos/dist/dev/incubator/nemo/KEYS > >>>> > >>>> Sincerely, > >>>> Sanha > >>>> > >>> > >>> > >>> -- > >>> Byung-Gon Chun > > >
