[Building Sakai] Best supported Lessons version for Sakai 2.9.2?

[Daniel Merino]

Please, forget this. The issue was not related to the 
LinkMigrationHelper class, but to remaining wars of the previous Lessons 
version in Tomcat.

Sorry for the spam.

El 28/07/14 a las #4, Daniel Merino escribió:
> Hi everybody.
>
>   From a mail of Charles Hedrick, I have understood that Lessons 10.0 is
> supported by Sakai 2.9.2. I have built it without problems, but I have
> found an issue when restarting Tomcat:
>
>       Exception in introspection java.lang.ClassNotFoundException:
> org.sakaiproject.util.api.LinkMigrationHelper
>       loader org.apache.catalina.loader.StandardClassLoader at 48e29820
>
>       2014-07-28 14:10:18,881 ERROR pool-2-thread-1
> org.springframework.web.context.ContextLoader - Context initialization
> failed
>       org.springframework.beans.factory.BeanCreationException: Error
> creating bean with name
> 'org.sakaiproject.lessonbuildertool.service.LessonBuilderAccessService'
> defined in ServletContext resource [/WEB-INF/applicationContext.xml]:
> Invocation of init method failed; nested exception is
> java.lang.AbstractMethodError:
> org.sakaiproject.lessonbuildertool.model.SimplePageToolDaoImpl.findProperty(Ljava/lang/String;)Lorg/sakaiproject/lessonbuildertool/SimplePageProperty;
>           at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
>           at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
>           at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
>
>
> It seems that is from this piece of code at
> tool/src/java/org/sakaiproject/lessonbuildertool/service/LessonBuilderEntityProducer.java
> :
>
>
>         // LinkMigrationHelper is not present before 2.10. So this code
> can compile on older systems,
>         // find it via introspection.
>
>         try {
>             linkMigrationHelper =
> RequestFilter.class.getClassLoader().loadClass("org.sakaiproject.util.api.LinkMigrationHelper");
>             // this is in the kernel, so it should already be loaded
>             linkMigrationHelperInstance =
> ComponentManager.get(linkMigrationHelper);
>             if (linkMigrationHelper != null)
>                 migrateAllLinks =
> linkMigrationHelper.getMethod("migrateAllLinks", new Class[] {
> Set.class, String.class });
>         } catch (Exception e) {
>             System.out.println("Exception in introspection " + e);
>             System.out.println("loader " +
> RequestFilter.class.getClassLoader());
>         }
>
>
> Is it possible to fix it without updating Kernel? Or I should try
> another Lessons version for 2.9.2?
>
> Thanks in advance.
> Best regards.

-- 
Daniel Merino Echeverría
daniel.merino at unavarra.es
Gestor de E-learning - Centro Superior de Innovación Educativa.
Tfno: 948-168489 - Universidad Pública de Navarra.