When using this method : ametys:getContentView(id), I have this error : 

java.lang.ClassCastException: class org.ametys.core.cocoon.source.ResourceSource cannot be cast to class org.apache.excalibur.source.impl.FileSource (org.ametys.core.cocoon.source.ResourceSource and org.apache.excalibur.source.impl.FileSource are in unnamed module of loader org.apache.catalina.loader.ParallelWebappClassLoader @44c79f32)java.lang.ClassCastException: class org.ametys.core.cocoon.source.ResourceSource cannot be cast to class org.apache.excalibur.source.impl.FileSource (org.ametys.core.cocoon.source.ResourceSource and org.apache.excalibur.source.impl.FileSource are in unnamed module of loader org.apache.catalina.loader.ParallelWebappClassLoader @44c79f32) at org.ametys.cms.transformation.xslt.AmetysXSLTHelper._getXsltFile(AmetysXSLTHelper.java:778) at org.ametys.cms.transformation.xslt.AmetysXSLTHelper.getContentView(AmetysXSLTHelper.java:743)

Full stack trace attached