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HHH-11495 Only cache values if the class is mapped somehow

This commit is contained in:
Guillaume Smet 2018-07-03 17:15:53 +02:00
parent 7067b191b7
commit 6c5e71fc40
1 changed files with 8 additions and 2 deletions
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10
hibernate-core/src/main/java/org/hibernate/metamodel/internal/MetamodelImpl.java
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@ -80,6 +80,7 @@ public class MetamodelImpl implements MetamodelImplementor, Serializable {
private static final EntityManagerMessageLogger log = HEMLogging.messageLogger( MetamodelImpl.class );
private static final Object ENTITY_NAME_RESOLVER_MAP_VALUE = new Object();
private static final String INVALID_IMPORT = "";
private static final String[] EMPTY_IMPLEMENTORS = new String[0];
private final SessionFactoryImplementor sessionFactory;
@ -635,8 +636,13 @@ public class MetamodelImpl implements MetamodelImplementor, Serializable {
try {
final Class<?> clazz = getSessionFactory().getServiceRegistry().getService( ClassLoaderService.class ).classForName( className );
implementors = doGetImplementors( clazz );
implementorsCache.putIfAbsent( className, implementors );
return Arrays.copyOf( implementors, implementors.length );
if ( implementors.length > 0 ) {
implementorsCache.putIfAbsent( className, implementors );
return Arrays.copyOf( implementors, implementors.length );
}
else {
return EMPTY_IMPLEMENTORS;
}
}
catch (ClassLoadingException e) {
return new String[]{ className }; // we don't cache anything for dynamic classes