 load any classes, resources, or open
 URLs. The scope and classpath of this loader is exactly the
 same as that of the loader returned by <a href="../../../jakarta/persistence/spi/PersistenceUnitInfo.html#getClassLoader--"><code>getClassLoader()</code></a>. None of the classes loaded
 by this class loader will be visible to application
 components. The provider may only use this ClassLoader within
 the scope of the <a href="../../../jakarta/persistence/spi/PersistenceProvider.html#createContainerEntityMana