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https://issues.apache.org/jira/browse/FLINK-20092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17230619#comment-17230619
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Till Rohrmann commented on FLINK-20092:
---------------------------------------
If this is a Java 11 or maven problem, can we close this issue [~maver1ck]?
> [Java 11] Multi-thread Flink compilation not working
> ----------------------------------------------------
>
> Key: FLINK-20092
> URL: https://issues.apache.org/jira/browse/FLINK-20092
> Project: Flink
> Issue Type: Bug
> Components: Build System
> Reporter: Maciej Bryński
> Priority: Major
>
> I'd like to use maven -T option when compiling flink.
> {code:java}
> mvn -T 2C clean install -D"scala-2.12" -DskipTests{code}
> Unfortunately my build is stuck on:
> {code:java}
> [INFO] --- maven-shade-plugin:3.2.1:shade (shade-flink) @
> flink-fs-hadoop-shaded ---
> [INFO] Including org.apache.hadoop:hadoop-common:jar:3.1.0 in the shaded jar.
> [INFO] Including org.apache.hadoop:hadoop-annotations:jar:3.1.0 in the shaded
> jar.
> [INFO] Including com.google.guava:guava:jar:11.0.2 in the shaded jar.
> [INFO] Including commons-io:commons-io:jar:2.7 in the shaded jar.
> [INFO] Including commons-collections:commons-collections:jar:3.2.2 in the
> shaded jar.
> [INFO] Including commons-logging:commons-logging:jar:1.1.3 in the shaded jar.
> [INFO] Including commons-lang:commons-lang:jar:2.6 in the shaded jar.
> [INFO] Including commons-beanutils:commons-beanutils:jar:1.9.3 in the shaded
> jar.
> [INFO] Including org.apache.commons:commons-configuration2:jar:2.1.1 in the
> shaded jar.
> [INFO] Including org.apache.commons:commons-lang3:jar:3.3.2 in the shaded jar.
> [INFO] Including com.google.re2j:re2j:jar:1.1 in the shaded jar.
> [INFO] Including org.apache.hadoop:hadoop-auth:jar:3.1.0 in the shaded jar.
> [INFO] Including org.apache.htrace:htrace-core4:jar:4.1.0-incubating in the
> shaded jar.
> [INFO] Including com.fasterxml.jackson.core:jackson-databind:jar:2.10.1 in
> the shaded jar.
> [INFO] Including com.fasterxml.jackson.core:jackson-annotations:jar:2.10.1 in
> the shaded jar.
> [INFO] Including com.fasterxml.jackson.core:jackson-core:jar:2.10.1 in the
> shaded jar.
> [INFO] Including org.codehaus.woodstox:stax2-api:jar:3.1.4 in the shaded jar.
> [INFO] Including com.fasterxml.woodstox:woodstox-core:jar:5.0.3 in the shaded
> jar.
> [INFO] Including org.apache.flink:force-shading:jar:1.12-SNAPSHOT in the
> shaded jar.
> [INFO] No artifact matching filter io.netty:netty
> [WARNING] Discovered module-info.class. Shading will break its strong
> encapsulation.
> [WARNING] Discovered module-info.class. Shading will break its strong
> encapsulation.
> [WARNING] Discovered module-info.class. Shading will break its strong
> encapsulation.
> [INFO] Replacing original artifact with shaded artifact.
> [INFO] Replacing
> /home/maverick/flink/flink-filesystems/flink-fs-hadoop-shaded/target/flink-fs-hadoop-shaded-1.12-SNAPSHOT.jar
> with
> /home/maverick/flink/flink-filesystems/flink-fs-hadoop-shaded/target/flink-fs-hadoop-shaded-1.12-SNAPSHOT-shaded.jar
> [INFO] Dependency-reduced POM written at:
> /home/maverick/flink/flink-filesystems/flink-fs-hadoop-shaded/target/dependency-reduced-pom.xml
> {code}
> Can we make flink compilation working with multiple maven threads ?
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