Martin Simka ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiNTc1ZjM5ZGQ4... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16269?atlOrigin=eyJpIjoiNTc1Zj... ) HHH-16269 ( https://hibernate.atlassian.net/browse/HHH-16269?atlOrigin=eyJpIjoiNTc1Zj... ) QueryTest.*null* fail on Sybase because WHERE c=null returns results ( https://hibernate.atlassian.net/browse/HHH-16269?atlOrigin=eyJpIjoiNTc1Zj... ) Change By: Martin Simka ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) [QueryTest|https://github.com/hibernate/hibernate-orm/blob/main/hibernate-...] fails on Sybase {noformat}java.lang.AssertionError: expected:<0> but was:<1> at org.junit.Assert.fail(Assert.java:89) at org.junit.Assert.failNotEquals(Assert.java:835) at org.junit.Assert.assertEquals(Assert.java:647) at org.junit.Assert.assertEquals(Assert.java:633) at org.hibernate.orm.test.jpa.query.QueryTest.testNativeQueryNullNamedParameter(QueryTest.java:478){noformat} because, unlike other databases, on Sybase the query {code:sql}CREATE TABLE aa (c varchar null) INSERT INTO aa VALUES (null) SELECT * FROM aa WHERE c = null{code} returns one row (it works the same as {{is null}}). These tests were skipped before on Sybase ([https://hibernate.atlassian.net/browse/HHH-11332|https://hibernate.atlass...]) . We could skip them again but they pass with jdts driver and fail only with Sybase driver. List of affected tests (there might be more): {noformat}org.hibernate.orm.test.jpa.query.QueryTest.testNativeQueryNullNamedParameter org.hibernate.orm.test.jpa.query.QueryTest.testNativeQueryNullNamedParameterParameter org.hibernate.orm.test.jpa.query.QueryTest.testNativeQueryNullPositionalParameter org.hibernate.orm.test.jpa.query.QueryTest.testNativeQueryNullPositionalParameterParameter org.hibernate.orm.test.jpa.query.QueryTest.testNullNamedParameter org.hibernate.orm.test.jpa.query.QueryTest.testNullNamedParameterParameter org.hibernate.orm.test.jpa.query.QueryTest.testNullNamedParameterParameterIncompatible org.hibernate.orm.test.jpa.query.QueryTest.testNullPositionalParameter org.hibernate.orm.test.jpa.query.QueryTest.testNullPositionalParameterParameter org.hibernate.orm.test.jpa.query.QueryTest.testNullPositionalParameterParameterIncompatible{noformat} ( https://hibernate.atlassian.net/browse/HHH-16269#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16269#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#100217- sha1:c17c655 )