Re: [tycho-user] Problem with Tycho 1.7.0 / JUnit 5 / Java 11

[Christian Dietrich <christian.dietrich@xxxxxxxxx>]

in this case the problem is:

the Xtext api used/in question is made for non osgi environments
so having it be used in an oosgi enviroment ment
is just for build simplification

~Christian

Am 18.05.20 um 11:03 schrieb Christoph Läubrich:
> You could try packagin jar (with proper dependencies inside pom), a
> suitable classloader would be for example the
> "this.getClass().getClassloader()" but that might depend on your
> overall needs. You can also try set the context-classloader but on the
> long term it might be required that xtext uses proper loading mechanisms.
>
> In general, all code that relies on "a default global classloader" is
> subject to fail in several environments (applet, J2EE, Web...), not
> only OSGi.
>
> Am 18.05.20 um 10:49 schrieb Christian Dietrich:
>> but indeed. problem can also be found when running as plugin test
>>
>> question: if i remember correct there was a posibility to run tests as
>> pure maven surefire tests instead of tycho-surefire plugin tests, but i
>> could not find it at a first glance. or do i remember wrong?
>>
>> ~Christian
>>
>> Am 18.05.20 um 10:32 schrieb Christoph Läubrich:
>>> In general, using ServiceLoader without specific classloader is
>>> problematic in OSGi. So the first thing to try is passing a suitable
>>> classloader.
>>>
>>>
>>> Am 18.05.20 um 10:20 schrieb Stefan Kapferer:
>>>> Hi there
>>>>
>>>> Can anyone help me with the problem described here
>>>> https://www.eclipse.org/forums/index.php/m/1827553/?
>>>>
>>>> Have a problem running JUnit tests (Xtext tests) with Maven and Tycho
>>>> under Java 11.
>>>>
>>>> As you can see here
>>>> https://www.eclipse.org/forums/index.php?t=msg&th=1103807&goto=1827558&#msg_1827558,
>>>>
>>>> Christian thinks it is a bug in Tycho.
>>>>
>>>> He provided a simple unit test to reproduce the problem:
>>>>
>>>> /package org.xtext.example.mydsl.tests;//
>>>> ////
>>>> //import java.util.ServiceLoader;//
>>>> ////
>>>> //import org.eclipse.xtext.ISetup;//
>>>> //import org.eclipse.xtext.xbase.lib.IterableExtensions;//
>>>> //import org.junit.Assert;//
>>>> //import org.junit.jupiter.api.BeforeEach;//
>>>> //import org.junit.jupiter.api.Test;//
>>>> ////
>>>> //public class DemoTest {//
>>>> ////
>>>> //@BeforeEach//
>>>> //public void setup() {//
>>>> //ServiceLoader<ISetup> sl =
>>>> ServiceLoader.<ISetup>load(ISetup.class);//
>>>> //Assert.assertFalse(IterableExtensions.isEmpty(sl));//
>>>> //}//
>>>> ////
>>>> //@Test//
>>>> //public void test02_openFile() {//
>>>> //}//
>>>> //}/
>>>>
>>>> I also attached a sample project there, where the unit tests fail
>>>> with Maven and Tycho. The tests however run perfectly fine within
>>>> Eclipse.
>>>>
>>>> Does someone here know what the problem could be or does know a
>>>> workaround?
>>>>
>>>> Thanks for your help and best regards,
>>>>
>>>> Stefan
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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-- 
Christian Dietrich (Diplom-Informatiker (BA))
Softwareentwickler / -Architekt
Committer and Co-Lead for Eclipse Xtext

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