39  */
  40 
  41 package sun.util.resources;
  42 
  43 import java.lang.ref.ReferenceQueue;
  44 import java.lang.ref.SoftReference;
  45 import java.security.AccessController;
  46 import java.security.PrivilegedAction;
  47 import java.util.Enumeration;
  48 import java.util.Iterator;
  49 import java.util.List;
  50 import java.util.Locale;
  51 import java.util.MissingResourceException;
  52 import java.util.Objects;
  53 import java.util.ResourceBundle;
  54 import java.util.ServiceConfigurationError;
  55 import java.util.ServiceLoader;
  56 import java.util.concurrent.ConcurrentHashMap;
  57 import java.util.concurrent.ConcurrentMap;
  58 import java.util.spi.ResourceBundleProvider;
  59 import jdk.internal.misc.JavaUtilResourceBundleAccess;
  60 import jdk.internal.misc.SharedSecrets;
  61 
  62 /**
  63  */
  64 public abstract class Bundles {
  65 
  66     /** initial size of the bundle cache */
  67     private static final int INITIAL_CACHE_SIZE = 32;
  68 
  69     /** constant indicating that no resource bundle exists */
  70     private static final ResourceBundle NONEXISTENT_BUNDLE = new ResourceBundle() {
  71             @Override
  72             public Enumeration<String> getKeys() { return null; }
  73             @Override
  74             protected Object handleGetObject(String key) { return null; }
  75             @Override
  76             public String toString() { return "NONEXISTENT_BUNDLE"; }
  77         };
  78 
  79     private static final JavaUtilResourceBundleAccess bundleAccess
  80                             = SharedSecrets.getJavaUtilResourceBundleAccess();

  39  */
  40 
  41 package sun.util.resources;
  42 
  43 import java.lang.ref.ReferenceQueue;
  44 import java.lang.ref.SoftReference;
  45 import java.security.AccessController;
  46 import java.security.PrivilegedAction;
  47 import java.util.Enumeration;
  48 import java.util.Iterator;
  49 import java.util.List;
  50 import java.util.Locale;
  51 import java.util.MissingResourceException;
  52 import java.util.Objects;
  53 import java.util.ResourceBundle;
  54 import java.util.ServiceConfigurationError;
  55 import java.util.ServiceLoader;
  56 import java.util.concurrent.ConcurrentHashMap;
  57 import java.util.concurrent.ConcurrentMap;
  58 import java.util.spi.ResourceBundleProvider;
  59 import jdk.internal.access.JavaUtilResourceBundleAccess;
  60 import jdk.internal.access.SharedSecrets;
  61 
  62 /**
  63  */
  64 public abstract class Bundles {
  65 
  66     /** initial size of the bundle cache */
  67     private static final int INITIAL_CACHE_SIZE = 32;
  68 
  69     /** constant indicating that no resource bundle exists */
  70     private static final ResourceBundle NONEXISTENT_BUNDLE = new ResourceBundle() {
  71             @Override
  72             public Enumeration<String> getKeys() { return null; }
  73             @Override
  74             protected Object handleGetObject(String key) { return null; }
  75             @Override
  76             public String toString() { return "NONEXISTENT_BUNDLE"; }
  77         };
  78 
  79     private static final JavaUtilResourceBundleAccess bundleAccess
  80                             = SharedSecrets.getJavaUtilResourceBundleAccess();