[MASSEMBLY-875] Maven Assembly Plugin 3.X is about 10x slower than 2.6

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.1.1
• Assignee: Unassigned
• Reporter: Stu
• Created: 29/Jan/18 18:54
• Updated: 18/Jan/19 00:22
• Resolved: 18/Jan/19 00:22

Description

In all our java projects, we have a fairly basic assembly configuration, something like this:

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>2.6</version>
    <configuration>
        <archive>
            <manifest>
                <mainClass>org.x.x.x</mainClass>
            </manifest>
        </archive>
        <descriptorRefs>
            <descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
    </configuration>
    <executions>
        <execution>
            <id>make-assembly</id>
            <phase>package</phase>
            <goals>
                <goal>single</goal>
            </goals>
        </execution>
    </executions>
</plugin>

They all take about 10x longer with any 3.x.x version of the maven assembly plugin than the 2.6 version.

This has been noticed by others:

https://stackoverflow.com/questions/9009232/what-sort-of-configuration-issues-or-problems-might-make-maven-assembly-plugin-g/24519615#24519615

But not reported as a bug that I could find.

Although I could only justify "Minor" for the priority, this is really is a blocker for us moving to 3.x.x

The upgrade is just not worth taking your build from < 10 sec to > 50 sec.

(For this particular build, it went from about ~ 7 sec to ~ 57 sec.)

Issue Links

• blocks: MPOM-196 Update maven-assembly-plugin to 3.1.1
• depends upon: MASSEMBLY-900 Upgrade plexus-archiver to 4.0.0
• is duplicated by: MASSEMBLY-873 Maven-Assembly-Plugin freezes when building jar-with-dependencies of project depending on org.bouncycastle:bcprov-jdk15on:1.58
• relates to: MASSEMBLY-888 jar-with-dependencies performance can be greatly improved by using the cache