[jira] [Created] (MASSEMBLY-875) Maven 3.x is about 10x slower than 2.6

["Stu (JIRA)" <ji...@apache.org>]

Stu created MASSEMBLY-875:
-----------------------------

             Summary: Maven 3.x is about 10x slower than 2.6
                 Key: MASSEMBLY-875
                 URL: https://issues.apache.org/jira/browse/MASSEMBLY-875
             Project: Maven Assembly Plugin
          Issue Type: Bug
            Reporter: Stu


In all our java projects, we have a fairly basic assembly configuration, something like this:
{code:java}
<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>{code}
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.



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