Am 2021-08-17 um 13:44 schrieb Nils Breunese:
Hi,

I have a project that uses 
org.apache.maven.plugin-testing:maven-plugin-testing-harness:3.3.0 for testing 
a Maven plugin.

After upgrading the project’s Maven dependencies to Maven 3.8.2 I got this 
error message when running tests:

----
Error injecting: 
org.sonatype.plexus.components.sec.dispatcher.DefaultSecDispatcher
java.lang.NoClassDefFoundError: 
org/sonatype/plexus/components/cipher/PlexusCipher      ... 117 more
----

PlexusCipher is a class in the plexus-cipher artifact, which is a transitive 
dependency of maven-core 3.8.1:

----
[INFO] org.example:plexus-cipher-mystery:jar:1.0-SNAPSHOT
[INFO] \- org.apache.maven:maven-core:jar:3.8.1:compile
[INFO]    +- org.apache.maven:maven-model:jar:3.8.1:compile
[INFO]    +- org.apache.maven:maven-settings:jar:3.8.1:compile
[INFO]    +- org.apache.maven:maven-settings-builder:jar:3.8.1:compile
[INFO]    |  +- org.codehaus.plexus:plexus-interpolation:jar:1.25:compile
[INFO]    |  \- org.sonatype.plexus:plexus-sec-dispatcher:jar:1.4:compile
[INFO]    |     \- org.sonatype.plexus:plexus-cipher:jar:1.4:compile
[INFO]    +- org.apache.maven:maven-builder-support:jar:3.8.1:compile
(…snip…)
----

But plexus-cipher is not a transitive dependency of maven-core 3.8.2:

----
[INFO] org.example:plexus-cipher-mystery:jar:1.0-SNAPSHOT
[INFO] \- org.apache.maven:maven-core:jar:3.8.2:compile
[INFO]    +- org.apache.maven:maven-model:jar:3.8.2:compile
[INFO]    +- org.apache.maven:maven-settings:jar:3.8.2:compile
[INFO]    +- org.apache.maven:maven-settings-builder:jar:3.8.2:compile
[INFO]    |  +- org.codehaus.plexus:plexus-interpolation:jar:1.25:compile
[INFO]    |  \- org.sonatype.plexus:plexus-sec-dispatcher:jar:1.4:compile
[INFO]    +- org.apache.maven:maven-builder-support:jar:3.8.2:compile
(…snip…)
----

Both maven-core 3.8.1 and 3.8.2 have a transitive dependency on 
org.sonatype.plexus:plexus-sec-dispatcher:jar:1.4. The weird this is that when 
using maven-core 3.8.1 plexus-sec-dispatcher has a dependency on plexus-cipher, 
but when using maven-core 3.8.2 it doesn’t. How can this be?

The pom.xml of plexus-sec-dispatcher:1.4 
(https://search.maven.org/artifact/org.sonatype.plexus/plexus-sec-dispatcher/1.4/jar)
 indeed declares a dependency on plexus-cipher 1.4, but it’s not there when 
depending on maven-core 3.8.2.

How can this be? And is this intentional? Is there an exclusion somewhere?

I can confirm that this is a regression caused by:
commit 41efc134a9067b58a5ab01e9b8b05d2bd84a94f0
Author: Olivier Lamy <[email protected]>
Date:   2020-04-10 01:17:25 +0200

    [MNG-6886] upgrade plexus-cipher to 1.8 and update changed groupId (#335)

    Signed-off-by: olivier lamy <[email protected]>


A global exclusion was performed, but not all affected modules were properly updated (so the change wasn't complete):
[DEBUG] org.apache.maven:maven-settings-builder:jar:3.8.2
[DEBUG]    org.apache.maven:maven-builder-support:jar:3.8.2:compile
[DEBUG]    javax.inject:javax.inject:jar:1:compile
[DEBUG]    org.codehaus.plexus:plexus-interpolation:jar:1.25:compile
[DEBUG]    org.codehaus.plexus:plexus-utils:jar:3.2.1:compile
[DEBUG]    org.apache.maven:maven-settings:jar:3.8.2:compile
[DEBUG]    org.sonatype.plexus:plexus-sec-dispatcher:jar:1.4:compile 
(exclusions managed from [org.sonatype.plexus:plexus-cipher:*:*])
[DEBUG]    junit:junit:jar:4.12:test
[DEBUG]       org.hamcrest:hamcrest-core:jar:1.3:test (scope managed from 
compile) (version managed from 1.3)
[INFO] org.apache.maven:maven-settings-builder:jar:3.8.2
[INFO] +- org.apache.maven:maven-builder-support:jar:3.8.2:compile
[INFO] +- javax.inject:javax.inject:jar:1:compile
[INFO] +- org.codehaus.plexus:plexus-interpolation:jar:1.25:compile
[INFO] +- org.codehaus.plexus:plexus-utils:jar:3.2.1:compile
[INFO] +- org.apache.maven:maven-settings:jar:3.8.2:compile
[INFO] +- org.sonatype.plexus:plexus-sec-dispatcher:jar:1.4:compile
[INFO] \- junit:junit:jar:4.12:test
[INFO]    \- org.hamcrest:hamcrest-core:jar:1.3:test

Please file an issue. I will add this to the known issues list then.

Thank you for testing!

Michael


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