Scott Marlow ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-16542 ( https://hibernate.atlassian.net/browse/HHH-16542?atlOrigin=eyJpIjoiNDVlM2... ) Re: (Jakarta EE 10 Platform TCK) jpa/core/entitytest/cascadeall/oneXone/cascadeAll1X1Test10 test regression ( https://hibernate.atlassian.net/browse/HHH-16542?atlOrigin=eyJpIjoiNDVlM2... ) private static void checkGetAndIsVariants( Class containerClass, String propertyName, Method getMethod, Method isMethod) { // Check the return types. If they are the same, its ok. If they are different // we are in a situation where we could not reasonably know which to use. if ( !isMethod.getReturnType().equals( getMethod.getReturnType() ) ) { throw new MappingException( String.format( Locale.ROOT, "In trying to locate getter for property [%s], Class [%s] defined " + "both a `get` [%s] and `is` [%s] variant", propertyName, containerClass.getName(), getMethod.toString(), isMethod.toString() ) ); } } Mentioned ReflectHelper code is ^ and error is: org.hibernate.MappingException: In trying to locate getter for property [b1] , Class [com.sun.ts.tests.jpa.core.entitytest.cascadeall.oneXone.A] defined both a get [public com.sun.ts.tests.jpa.core.entitytest.cascadeall.oneXone.B com.sun.ts.tests.jpa.core.entitytest.cascadeall.oneXone.A.getB1()] and is [public boolean com.sun.ts.tests.jpa.core.entitytest.cascadeall.oneXone.A.isB1()] variant The offending TCK source code is: @OneToOne(targetEntity = com.sun.ts.tests.jpa.core.entitytest.cascadeall.oneXone.B.class, mappedBy = "a1", orphanRemoval = true) protected B b1; public B getB1() { return b1; } public boolean isB1() { TestUtil.logTrace("isB1"); if (getB1() != null) TestUtil.logTrace("Relationship to B is not null..."); else TestUtil.logTrace("Relationship for B is null ..."); return getB1() != null; } Apologies for pasting all of the above but it helps me to see it all together as one comment. 🙂 From the above pasted code + error, I think the test would pass if both methods returned either B or boolean but is that only a Hibernate requirement or is that also Persistence Specification requirement? Could ReflectHelper be enhanced to handle ^ differently in JPA_COMPLIANCE mode? ( https://hibernate.atlassian.net/browse/HHH-16542#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16542#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#100224- sha1:4684446 )