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src/java.base/share/classes/sun/misc/JavaLangAccess.java

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  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.misc;
  27 
  28 import java.lang.annotation.Annotation;
  29 import java.lang.reflect.Executable;
  30 import java.security.AccessControlContext;
  31 import java.util.Map;

  32 
  33 import sun.reflect.ConstantPool;
  34 import sun.reflect.annotation.AnnotationType;
  35 import sun.nio.ch.Interruptible;
  36 
  37 public interface JavaLangAccess {
  38     /** Return the constant pool for a class. */
  39     ConstantPool getConstantPool(Class<?> klass);
  40 
  41     /**
  42      * Compare-And-Swap the AnnotationType instance corresponding to this class.
  43      * (This method only applies to annotation types.)
  44      */
  45     boolean casAnnotationType(Class<?> klass, AnnotationType oldType, AnnotationType newType);
  46 
  47     /**
  48      * Get the AnnotationType instance corresponding to this class.
  49      * (This method only applies to annotation types.)
  50      */
  51     AnnotationType getAnnotationType(Class<?> klass);


  62     byte[] getRawClassAnnotations(Class<?> klass);
  63 
  64     /**
  65      * Get the array of bytes that is the class-file representation
  66      * of this Class' type annotations.
  67      */
  68     byte[] getRawClassTypeAnnotations(Class<?> klass);
  69 
  70     /**
  71      * Get the array of bytes that is the class-file representation
  72      * of this Executable's type annotations.
  73      */
  74     byte[] getRawExecutableTypeAnnotations(Executable executable);
  75 
  76     /**
  77      * Returns the elements of an enum class or null if the
  78      * Class object does not represent an enum type;
  79      * the result is uncloned, cached, and shared by all callers.
  80      */
  81     <E extends Enum<E>> E[] getEnumConstantsShared(Class<E> klass);








  82 
  83     /** Set thread's blocker field. */
  84     void blockedOn(Thread t, Interruptible b);
  85 
  86     /**
  87      * Registers a shutdown hook.
  88      *
  89      * It is expected that this method with registerShutdownInProgress=true
  90      * is only used to register DeleteOnExitHook since the first file
  91      * may be added to the delete on exit list by the application shutdown
  92      * hooks.
  93      *
  94      * @params slot  the slot in the shutdown hook array, whose element
  95      *               will be invoked in order during shutdown
  96      * @params registerShutdownInProgress true to allow the hook
  97      *               to be registered even if the shutdown is in progress.
  98      * @params hook  the hook to be registered
  99      *
 100      * @throw IllegalStateException if shutdown is in progress and
 101      *          the slot is not valid to register.




  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.misc;
  27 
  28 import java.lang.annotation.Annotation;
  29 import java.lang.reflect.Executable;
  30 import java.security.AccessControlContext;
  31 import java.util.Map;
  32 import java.util.function.Function;
  33 
  34 import sun.reflect.ConstantPool;
  35 import sun.reflect.annotation.AnnotationType;
  36 import sun.nio.ch.Interruptible;
  37 
  38 public interface JavaLangAccess {
  39     /** Return the constant pool for a class. */
  40     ConstantPool getConstantPool(Class<?> klass);
  41 
  42     /**
  43      * Compare-And-Swap the AnnotationType instance corresponding to this class.
  44      * (This method only applies to annotation types.)
  45      */
  46     boolean casAnnotationType(Class<?> klass, AnnotationType oldType, AnnotationType newType);
  47 
  48     /**
  49      * Get the AnnotationType instance corresponding to this class.
  50      * (This method only applies to annotation types.)
  51      */
  52     AnnotationType getAnnotationType(Class<?> klass);


  63     byte[] getRawClassAnnotations(Class<?> klass);
  64 
  65     /**
  66      * Get the array of bytes that is the class-file representation
  67      * of this Class' type annotations.
  68      */
  69     byte[] getRawClassTypeAnnotations(Class<?> klass);
  70 
  71     /**
  72      * Get the array of bytes that is the class-file representation
  73      * of this Executable's type annotations.
  74      */
  75     byte[] getRawExecutableTypeAnnotations(Executable executable);
  76 
  77     /**
  78      * Returns the elements of an enum class or null if the
  79      * Class object does not represent an enum type;
  80      * the result is uncloned, cached, and shared by all callers.
  81      */
  82     <E extends Enum<E>> E[] getEnumConstantsShared(Class<E> klass);
  83 
  84     /**
  85      * If given Class represents a generic class or interface, then the result of
  86      * applying given function to the Class object is returned, otherwise null.
  87      * The result is cached in per-Class map using identity of given key.
  88      */
  89     <D> D getGenericDerivative(Class<?> clazz, Object key,
  90                                Function<Class<?>, ? extends D> function);
  91 
  92     /** Set thread's blocker field. */
  93     void blockedOn(Thread t, Interruptible b);
  94 
  95     /**
  96      * Registers a shutdown hook.
  97      *
  98      * It is expected that this method with registerShutdownInProgress=true
  99      * is only used to register DeleteOnExitHook since the first file
 100      * may be added to the delete on exit list by the application shutdown
 101      * hooks.
 102      *
 103      * @params slot  the slot in the shutdown hook array, whose element
 104      *               will be invoked in order during shutdown
 105      * @params registerShutdownInProgress true to allow the hook
 106      *               to be registered even if the shutdown is in progress.
 107      * @params hook  the hook to be registered
 108      *
 109      * @throw IllegalStateException if shutdown is in progress and
 110      *          the slot is not valid to register.


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