[hibernate-issues] [Hibernate-JIRA] Created: (HHH-7177) NullPointerException after persisting null NaturalId-values in combination with @NaturalIdCache
NullPointerException after persisting null NaturalId-values in combination with
@NaturalIdCache
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Key: HHH-7177
URL: https://hibernate.onjira.com/browse/HHH-7177
Project: Hibernate ORM
Issue Type: Bug
Components: caching (L2)
Affects Versions: 4.1.1
Reporter: Guenther Demetz
Priority: Minor
Since Steve has fixed HHH-7158 (see
org.hibernate.test.naturalid.nullable.NullableNaturalIdTest),
there's no NullPointerException anymore when persisting null values.
But a NullPointerException raises again when annotating the entity class with
@NaturalIdCache.
Cause:
{code:title=NaturalIdCacheKey.java constructor|borderStyle=solid}
result = prime * result + type.getHashCode( value, factory ); // raises NPE when value is
null
{code}
Proposed fix:
{code:title=NaturalIdCacheKey.java constructor|borderStyle=solid}
result = prime * result + (value == null ? 0 : type.getHashCode( value, factory ));
{code}
Testcase (see attachement):
{code:title=org.hibernate.test.annotations.naturalid.NaturalIdOnSingleManyToOneTest.java|borderStyle=solid}
@Test
public void testManyToOnePersistMutableNaturalIdWithNullValue() {
NaturalIdOnManyToOne singleManyToOne = new NaturalIdOnManyToOne();
Citizen c1 = new Citizen();
c1.setFirstname( "Emmanuel" );
c1.setLastname( "Bernard" );
c1.setSsn( "1234" );
State france = new State();
france.setName( "Ile de France" );
c1.setState( null );
singleManyToOne.setCitizen( c1 );
Session s = openSession();
Transaction tx = s.beginTransaction();
s.persist( france );
s.persist( c1 );
s.persist( singleManyToOne );
c1.setState( france );
s.flush(); // --> java.lang.NullPointerException below raises, test passes when
removing @NaturalIdCache annotation on Citizen entity
{code}
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