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69 * @see java.nio.charset.Charset |
69 * @see java.nio.charset.Charset |
70 */ |
70 */ |
71 |
71 |
72 public abstract class CharsetProvider { |
72 public abstract class CharsetProvider { |
73 |
73 |
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74 private static Void checkPermission() { |
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75 SecurityManager sm = System.getSecurityManager(); |
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76 if (sm != null) |
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77 sm.checkPermission(new RuntimePermission("charsetProvider")); |
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78 return null; |
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79 } |
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80 private CharsetProvider(Void ignore) { } |
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81 |
74 /** |
82 /** |
75 * Initializes a new charset provider. |
83 * Initializes a new charset provider. |
76 * |
84 * |
77 * @throws SecurityException |
85 * @throws SecurityException |
78 * If a security manager has been installed and it denies |
86 * If a security manager has been installed and it denies |
79 * {@link RuntimePermission}<tt>("charsetProvider")</tt> |
87 * {@link RuntimePermission}<tt>("charsetProvider")</tt> |
80 */ |
88 */ |
81 protected CharsetProvider() { |
89 protected CharsetProvider() { |
82 SecurityManager sm = System.getSecurityManager(); |
90 this(checkPermission()); |
83 if (sm != null) |
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84 sm.checkPermission(new RuntimePermission("charsetProvider")); |
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85 } |
91 } |
86 |
92 |
87 /** |
93 /** |
88 * Creates an iterator that iterates over the charsets supported by this |
94 * Creates an iterator that iterates over the charsets supported by this |
89 * provider. This method is used in the implementation of the {@link |
95 * provider. This method is used in the implementation of the {@link |