Debbie Philip ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) *commented* on HHH-16755 ( https://hibernate.atlassian.net/browse/HHH-16755?atlOrigin=eyJpIjoiMmJiMj... ) Re: NPE while retrieving static metamodel attribute of an embeddable within an entity ( https://hibernate.atlassian.net/browse/HHH-16755?atlOrigin=eyJpIjoiMmJiMj... ) https://hibernate.atlassian.net/browse/HHH-16378 The code done for this ticket seems to break the existing logic in our project, due to the addition of this condition in MetadataContext.java: *v6.2.2:* while(!this.embeddablesToProcess.isEmpty()){ … if ( !( embeddable.getExpressibleJavaType() instanceof EntityJavaType ) ) { this.embeddables.put( embeddable.getJavaType(), embeddable ); if ( staticMetamodelScanEnabled ) { this.populateStaticMetamodel( embeddable ); } } } *v6.2.3 onwards:* while ( ! embeddablesToProcess.isEmpty() ) { ... // Do not process embeddables for entity types i.e. id-classes or // generic component embeddables used just for concrete type resolution if ( ! *component.isGeneric()* && !( embeddable.getExpressibleJavaType() instanceof EntityJavaType<?> ) ) { embeddables.put( embeddable.getJavaType(), embeddable ); if ( staticMetamodelScanEnabled ) { populateStaticMetamodel( embeddable ); } } } In the attached test case, code fails if we have a embeddable that is generic and extends properties from a superclass. Even though the association between the embeddable and the superclass property is understood in the mapping phase, it doesn't get populated. So while ExampleEmbedded_.user compiles, it throws a NPE at runtime. We have quite a few places entrenched in our project where we need to use a generic embeddable class extending from a super class, with properties defined in the super class. Changing it to stop extending the superclass or making the embeddable non-generic would require quite a bit of rework of the project architecture. ( https://hibernate.atlassian.net/browse/HHH-16755#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16755#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100233- sha1:b4f309b )