[
https://issues.apache.org/jira/browse/MRESOLVER-7?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17550590#comment-17550590
]
ASF GitHub Bot commented on MRESOLVER-7:
----------------------------------------
cstamas commented on PR #178:
URL: https://github.com/apache/maven-resolver/pull/178#issuecomment-1147694146
Something is wrong here, unsure what. But, I tried to build maven master
using maven-3.9.x + this PR + empty local repo and it fails:
```
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.10.1:testCompile
(default-testCompile) on project maven-model-builder: Compilation failure:
Compilation failure:
[ERROR]
/home/cstamas/Worx/apache-maven/maven/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringSearchModelInterpolatorTest.java:[36,27]
package org.hamcrest does not exist
[ERROR]
/home/cstamas/Worx/apache-maven/maven/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringSearchModelInterpolatorTest.java:[36,1]
static import only from classes and interfaces
[ERROR]
/home/cstamas/Worx/apache-maven/maven/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringSearchModelInterpolatorTest.java:[37,27]
package org.hamcrest does not exist
[ERROR]
/home/cstamas/Worx/apache-maven/maven/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringSearchModelInterpolatorTest.java:[37,1]
static import only from classes and interfaces
[ERROR] -> [Help 1]
```
The cmd used to test:
```
[cstamas@infinity maven (maven-3.9.x)]$
~/bin/maven/apache-maven-3.9.0-SNAPSHOT/bin/mvn clean install
-Dmaven.repo.local=local-repo -Drat.skip -DskipTests -Daether.collector.impl=bf
```
> Download dependency POMs in parallel
> ------------------------------------
>
> Key: MRESOLVER-7
> URL: https://issues.apache.org/jira/browse/MRESOLVER-7
> Project: Maven Resolver
> Issue Type: Improvement
> Components: Resolver
> Affects Versions: Aether 1.0.2
> Reporter: Harald Wellmann
> Priority: Major
> Attachments: resolver.log
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> h3. Background
> When building a project with dependencies not yet available in the local
> repository, I noticed that Maven 3.3.9/Aether 1.0.2 first downloads the
> dependency POMs _sequentially_ and then proceeds downloading the dependency
> JARs with up to 5 threads _in parallel_.
> Due to this, when first building a project with a large number of
> dependencies, downloading a large number of small POMs may take a lot longer
> than downloading the much larger JARs, or even longer than building the
> project itself, especially when a repository manager is used which increases
> the download latency.
> h3. Enhancement
> Download POMs of (transitive) dependencies in parallel to significantly speed
> up initial builds of large projects.
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