Get NoClassDefFoundError for commons-lang StringUtils creating archetype

[Henri Tremblay]

Have you tried without using a mirror? Directly from central. I've quite
frequent that mirrors in the middle are not making the archetype plugin
happy.

Also, a print out using -X would be interesting.

On Sat, 23 May 2020 at 14:48, David Karr <davidmichaelkarr at gmail.com> wrote:

> In any case, I guess I'm going to ignore this problem for now.  I had an
> existing jmh benchmark project that I had created before, so I'm just
> modifying that for the new benchmarks I want to run. I guess I'm going to
> assume the archetype isn't going to work for the near future.
>
> On Sat, May 23, 2020 at 9:18 AM David Karr <davidmichaelkarr at gmail.com>
> wrote:
>
>> Just to remove a possible cause, I wondered whether the fact that I don't
>> have a commons-lang jar in my local repo could be the cause. I went through
>> the trouble of creating a sample project that references that artifact and
>> built it, to get it into my local repo. This was another small challenge,
>> as our intranet repo doesn't even have that artifact anymore, considering
>> commons-lang3 has been out for quite a while.  I had to manually download
>> that artifact from the public mavencentral and manually dump it into my
>> local repo.  I verified I put it in the right place, because my sample
>> project referencing that artifact now doesn't have a build error trying to
>> find that artifact.
>>
>> Unfortunately, this was a red herring, as my maven archetype command line
>> still fails the same way.
>>
>> On Sat, May 23, 2020 at 9:09 AM David Karr <davidmichaelkarr at gmail.com>
>> wrote:
>>
>>>
>>>
>>> On Sat, May 23, 2020 at 3:08 AM Henri Tremblay <henri.tremblay at gmail.com>
>>> wrote:
>>>
>>>> It runs flawlessly on my machine (with Maven 3.6.3).
>>>>
>>>> Version 3.1.2 of the maven-archetype-plugin is used.
>>>>
>>>> Can you please upgrade Maven just in case?
>>>>
>>>
>>> I just installed maven 3.6.3, verified that's what I have on the command
>>> line, ran the same mvn archetype command line. No difference.  I'll include
>>> more of the output here.
>>>
>>> -------------------------------
>>> [INFO] Scanning for projects...
>>> Downloading from public:
>>> http://mavencentral.it.att.com:8081/nexus/content/groups/public/org/codehaus/mojo/maven-metadata.xml
>>> Downloading from att-repository-releases:
>>> http://mavencentral.it.att.com:8081/nexus/content/repositories/att-repository-releases/org/codehaus/mojo/maven-metadata.xml
>>> Downloading from public:
>>> http://mavencentral.it.att.com:8081/nexus/content/groups/public/org/apache/maven/plugins/maven-metadata.xml
>>> Downloading from att-repository-releases:
>>> http://mavencentral.it.att.com:8081/nexus/content/repositories/att-repository-releases/org/apache/maven/plugins/maven-metadata.xml
>>> Downloading from att-repository-releases:
>>> http://mavencentral.it.att.com:8081/nexus/content/repositories/att-repository-releases/org/apache/maven/plugins/maven-archetype-plugin/maven-metadata.xml
>>> Downloading from public:
>>> http://mavencentral.it.att.com:8081/nexus/content/groups/public/org/apache/maven/plugins/maven-archetype-plugin/maven-metadata.xml
>>> [INFO]
>>> [INFO] ------------------< org.apache.maven:standalone-pom
>>> >-------------------
>>> [INFO] Building Maven Stub Project (No POM) 1
>>> [INFO] --------------------------------[ pom
>>> ]---------------------------------
>>> [INFO]
>>> [INFO] >>> maven-archetype-plugin:3.1.2:generate (default-cli) >
>>> generate-sources @ standalone-pom >>>
>>> [INFO]
>>> [INFO] <<< maven-archetype-plugin:3.1.2:generate (default-cli) <
>>> generate-sources @ standalone-pom <<<
>>> [INFO]
>>> [INFO]
>>> [INFO] --- maven-archetype-plugin:3.1.2:generate (default-cli) @
>>> standalone-pom ---
>>> [WARNING] Error initializing:
>>> org.codehaus.plexus.velocity.DefaultVelocityComponent at 3569edd5
>>> java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
>>>     at
>>> org.apache.velocity.runtime.resource.ResourceManagerImpl.initialize
>>> (ResourceManagerImpl.java:161)
>>>     at
>>> org.apache.velocity.runtime.RuntimeInstance.initializeResourceManager
>>> (RuntimeInstance.java:730)
>>>     at org.apache.velocity.runtime.RuntimeInstance.init
>>> (RuntimeInstance.java:263)
>>>     at org.apache.velocity.app.VelocityEngine.init
>>> (VelocityEngine.java:93)
>>>     at org.codehaus.plexus.velocity.DefaultVelocityComponent.initialize
>>> (DefaultVelocityComponent.java:95)
>>> ----------------------------
>>>
>>>>
>>>> On Sat, 23 May 2020 at 02:46, David Karr <davidmichaelkarr at gmail.com>
>>>> wrote:
>>>>
>>>>> Maven 3.5.2, Java 8.
>>>>>
>>>>> This is my command line (copied directly from the docs, just changing
>>>>> the artifactId):
>>>>>
>>>>>     mvn archetype:generate -DinteractiveMode=false
>>>>> -DarchetypeGroupId=org.openjdk.jmh
>>>>> -DarchetypeArtifactId=jmh-java-benchmark-archetype
>>>>> -DgroupId=com.att.example -DartifactId=jmhBenchmarks -Dversion=1.0
>>>>>
>>>>> On Fri, May 22, 2020 at 6:23 PM Henri Tremblay <
>>>>> henri.tremblay at gmail.com> wrote:
>>>>>
>>>>>> It should work.
>>>>>>
>>>>>> We need some details.
>>>>>>
>>>>>> Maven version? 3.6.3?
>>>>>> Archetype? jmh-java-benchmark-archetype:1.23
>>>>>> Java 8?
>>>>>>
>>>>>>
>>>>>> On Fri, 22 May 2020 at 18:58, David Karr <davidmichaelkarr at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> I've used JMH in the past, and I've always started by creating an
>>>>>>> archetype.  Today I tried it, only changing the artifact id from the
>>>>>>> command line in the docs.  It ran for quite a while, downloading
>>>>>>> artifacts,
>>>>>>> and then I saw this:
>>>>>>>
>>>>>>> [WARNING] Error initializing:
>>>>>>> org.codehaus.plexus.velocity.DefaultVelocityComponent at 57d0fc89
>>>>>>> java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
>>>>>>>     at
>>>>>>> org.apache.velocity.runtime.resource.ResourceManagerImpl.initialize
>>>>>>> (ResourceManagerImpl.java:161)
>>>>>>>
>>>>>>> followed by just about the longest stack trace I've ever seen.  This
>>>>>>> was
>>>>>>> followed by many copies of the same trace.
>>>>>>>
>>>>>>> I also checked my local .m2 repository, and I don't have this jar
>>>>>>> installed
>>>>>>> (I have lang3). I searched in the maven output for a reference to
>>>>>>> that
>>>>>>> library. It showed attempts to download other commons libraries, but
>>>>>>> not
>>>>>>> commons-lang.
>>>>>>>
>>>>>>