polishing

org.springframework.orm/src/main/java/org/springframework/orm/jpa/AbstractEntityManagerFactoryBean.java

@@ -112,7 +112,7 @@ public abstract class AbstractEntityManagerFactoryBean implements
 	 */
 	public void setPersistenceProviderClass(Class<? extends PersistenceProvider> persistenceProviderClass) {
 		Assert.isAssignable(PersistenceProvider.class, persistenceProviderClass);
-		this.persistenceProvider = (PersistenceProvider) BeanUtils.instantiateClass(persistenceProviderClass);
+		this.persistenceProvider = BeanUtils.instantiateClass(persistenceProviderClass);
 	}
 
 	/**

org.springframework.orm/src/main/java/org/springframework/orm/jpa/LocalContainerEntityManagerFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2008 the original author or authors.
+ * Copyright 2002-2009 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -208,7 +208,7 @@ public class LocalContainerEntityManagerFactoryBean extends AbstractEntityManage
 						"No PersistenceProvider specified in EntityManagerFactory configuration, " +
 						"and chosen PersistenceUnitInfo does not specify a provider class name either");
 			}
-			Class providerClass = ClassUtils.resolveClassName(providerClassName, getBeanClassLoader());
+			Class<?> providerClass = ClassUtils.resolveClassName(providerClassName, getBeanClassLoader());
 			provider = (PersistenceProvider) BeanUtils.instantiateClass(providerClass);
 		}
 		if (provider == null) {