Re: Intermittent java.lang.NoClassDefFoundError: org/junit/runner/notification/RunNotifier

[Dan Tran]

@Fabian, one more time you have come to my rescue.   Indeed, we introduce a
new MOJO  and it has aggregate flag set to true

Thanks again

-Dan

On Fri, May 5, 2017 at 8:56 AM, Dan Tran  wrote:

> @Fabian, yes i do recall vaguely with your and I have a good run for a
> year :-). Thanks for the reminder, i can search thru new mojos lately
> introduced to the build and find out. Thanks
>
> @Martin,  i do use hamcrest
>
> -D
>
> On Fri, May 5, 2017 at 4:42 AM, Martin Gainty  wrote:
>
>>
>>
>> 
>> From: Dan Tran 
>> Sent: Friday, May 5, 2017 3:51 AM
>> To: Maven Users List
>> Subject: Intermittent java.lang.NoClassDefFoundError:
>> org/junit/runner/notification/RunNotifier
>>
>> Hi
>>
>> Lately, my build randomly fails with
>>
>>   java.lang.NoClassDefFoundError: org/junit/runner/notification/
>> RunNotifier
>>  at surefire
>>
>>
>> My environment consists of
>>
>>   * 200+ modules  running with --builder smart  -T 4
>>   * surefire 2.19.1 and 2.20, maven 3.3.9 and 3.5
>>   * Build runs on Sles12SP2 with OpenJDK8
>>
>> Stack Overflow has a similar issue back in 2014
>>
>> MG>assuming you are not using Hamcrest following surefire doc i assume
>> declaring junit-dep as dependency to maven-surefire-plugin will solve
>>
>>   
>>   
>> junit
>> junit-dep
>>
>>  test
>>   
>>
>> MG>http://maven.apache.org/surefire/maven-surefire-plugin/
>> examples/junit.html
>> > examples/junit.html>
>> Maven Surefire Plugin – Using JUnit> surefire/maven-surefire-plugin/examples/junit.html>
>> maven.apache.org
>> This is the only step that is required to get started - you can now
>> create tests in your test source directory (e.g., src/test/java). Surefire
>> supports three ...
>>
>> MG>once junit added as dependency supposedly surefire test classloader
>> will now see junit classes (including org/junit/runner/notification/
>> RunNotifier)
>> MG>does this help?
>>
>>
>> Any suggestion helping to trouble shoot this issue is greatly appreciated
>>
>> Thanks
>>
>> -Dan
>>
>
>

Re: Intermittent java.lang.NoClassDefFoundError: org/junit/runner/notification/RunNotifier

[Dan Tran]

@Fabian, yes i do recall vaguely with your and I have a good run for a year
:-). Thanks for the reminder, i can search thru new mojos lately introduced
to the build and find out. Thanks

@Martin,  i do use hamcrest

-D

On Fri, May 5, 2017 at 4:42 AM, Martin Gainty  wrote:

>
>
> 
> From: Dan Tran 
> Sent: Friday, May 5, 2017 3:51 AM
> To: Maven Users List
> Subject: Intermittent java.lang.NoClassDefFoundError:
> org/junit/runner/notification/RunNotifier
>
> Hi
>
> Lately, my build randomly fails with
>
>   java.lang.NoClassDefFoundError: org/junit/runner/notification/
> RunNotifier
>  at surefire
>
>
> My environment consists of
>
>   * 200+ modules  running with --builder smart  -T 4
>   * surefire 2.19.1 and 2.20, maven 3.3.9 and 3.5
>   * Build runs on Sles12SP2 with OpenJDK8
>
> Stack Overflow has a similar issue back in 2014
>
> MG>assuming you are not using Hamcrest following surefire doc i assume
> declaring junit-dep as dependency to maven-surefire-plugin will solve
>
>   
>   
> junit
> junit-dep
>
>  test
>   
>
> MG>http://maven.apache.org/surefire/maven-surefire-
> plugin/examples/junit.html
>  plugin/examples/junit.html>
> Maven Surefire Plugin – Using JUnit surefire/maven-surefire-plugin/examples/junit.html>
> maven.apache.org
> This is the only step that is required to get started - you can now create
> tests in your test source directory (e.g., src/test/java). Surefire
> supports three ...
>
> MG>once junit added as dependency supposedly surefire test classloader
> will now see junit classes (including org/junit/runner/notification/
> RunNotifier)
> MG>does this help?
>
>
> Any suggestion helping to trouble shoot this issue is greatly appreciated
>
> Thanks
>
> -Dan
>

Re: Intermittent java.lang.NoClassDefFoundError: org/junit/runner/notification/RunNotifier

[Martin Gainty]

From: Dan Tran 
Sent: Friday, May 5, 2017 3:51 AM
To: Maven Users List
Subject: Intermittent java.lang.NoClassDefFoundError: 
org/junit/runner/notification/RunNotifier

Hi

Lately, my build randomly fails with

  java.lang.NoClassDefFoundError: org/junit/runner/notification/RunNotifier
 at surefire


My environment consists of

  * 200+ modules  running with --builder smart  -T 4
  * surefire 2.19.1 and 2.20, maven 3.3.9 and 3.5
  * Build runs on Sles12SP2 with OpenJDK8

Stack Overflow has a similar issue back in 2014

MG>assuming you are not using Hamcrest following surefire doc i assume 
declaring junit-dep as dependency to maven-surefire-plugin will solve

  
  
junit
junit-dep

 test
  

MG>http://maven.apache.org/surefire/maven-surefire-plugin/examples/junit.html

Maven Surefire Plugin – Using 
JUnit
maven.apache.org
This is the only step that is required to get started - you can now create 
tests in your test source directory (e.g., src/test/java). Surefire supports 
three ...

MG>once junit added as dependency supposedly surefire test classloader will now 
see junit classes (including org/junit/runner/notification/RunNotifier)
MG>does this help?


Any suggestion helping to trouble shoot this issue is greatly appreciated

Thanks

-Dan

Re: Intermittent java.lang.NoClassDefFoundError: org/junit/runner/notification/RunNotifier

[Fabian van der Veen]

Hey Dan,

Given the symptoms you mention, I think you may be hitting the same issue with 
your concurrent build as we did a while ago (and which has been reported as 
https://issues.apache.org/jira/browse/MNG-5960).

Basically, (based on some debugging I did for our build,) having some aggregate 
plugin running in anything else than your root project may cause this to happen 
in a multi-threaded build. In our case, it was the default behaviour of the 
maven-javadoc-plugin. In short, it boils down to the aggregate plugin resolving 
compile-scope dependencies for _all_ projects in the reactor, which may 
possibly overwrite already resolved test-scope dependencies for currently 
building projects; resulting in classpath issues (usually) no longer being able 
to find junit.

I don't know if there is an easy way to find aggregate plugins other than 
looking into their mojo source code; so maybe someone else on this list can 
help you with that..

Good luck!

-- Fabian

On Fri, 2017-05-05 at 00:51 -0700, Dan Tran wrote:

Hi

Lately, my build randomly fails with

  java.lang.NoClassDefFoundError: org/junit/runner/notification/RunNotifier
 at surefire


My environment consists of

  * 200+ modules  running with --builder smart  -T 4
  * surefire 2.19.1 and 2.20, maven 3.3.9 and 3.5
  * Build runs on Sles12SP2 with OpenJDK8

Stack Overflow has a similar issue back in 2014

Any suggestion helping to trouble shoot this issue is greatly appreciated

Thanks

-Dan