454 
 455     static {
 456         initialize();
 457     }
 458     private static native void initialize();
 459 
 460     /**
 461      * Initialize archived static fields in the given Class using archived
 462      * values from CDS dump time. Also initialize the classes of objects in
 463      * the archived graph referenced by those fields.
 464      *
 465      * Those static fields remain as uninitialized if there is no mapped CDS
 466      * java heap data or there is any error during initialization of the
 467      * object class in the archived graph.
 468      */
 469     public static native void initializeFromArchive(Class<?> c);
 470 
 471     public static native long getRandomSeedForCDSDump();
 472 
 473     /**










 474      * Provides access to information on buffer usage.
 475      */
 476     public interface BufferPool {
 477         String getName();
 478         long getCount();
 479         long getTotalCapacity();
 480         long getMemoryUsed();
 481     }
 482 
 483     private static class BufferPoolsHolder {
 484         static final List<BufferPool> BUFFER_POOLS;
 485 
 486         static {
 487             ArrayList<BufferPool> bufferPools = new ArrayList<>(3);
 488             bufferPools.add(SharedSecrets.getJavaNioAccess().getDirectBufferPool());
 489             bufferPools.add(FileChannelImpl.getMappedBufferPool());
 490             bufferPools.add(FileChannelImpl.getSyncMappedBufferPool());
 491 
 492             BUFFER_POOLS = Collections.unmodifiableList(bufferPools);
 493         }

 454 
 455     static {
 456         initialize();
 457     }
 458     private static native void initialize();
 459 
 460     /**
 461      * Initialize archived static fields in the given Class using archived
 462      * values from CDS dump time. Also initialize the classes of objects in
 463      * the archived graph referenced by those fields.
 464      *
 465      * Those static fields remain as uninitialized if there is no mapped CDS
 466      * java heap data or there is any error during initialization of the
 467      * object class in the archived graph.
 468      */
 469     public static native void initializeFromArchive(Class<?> c);
 470 
 471     public static native long getRandomSeedForCDSDump();
 472 
 473     /**
 474      * Check if CDS dynamic dumping is enabled via the DynamicDumpSharedSpaces flag.
 475      */
 476     public static native boolean isCDSDumpingEnabled();
 477 
 478     /**
 479      * Check if CDS sharing is enabled by via the UseSharedSpaces flag.
 480      */
 481     public static native boolean isCDSSharingEnabled();
 482 
 483     /**
 484      * Provides access to information on buffer usage.
 485      */
 486     public interface BufferPool {
 487         String getName();
 488         long getCount();
 489         long getTotalCapacity();
 490         long getMemoryUsed();
 491     }
 492 
 493     private static class BufferPoolsHolder {
 494         static final List<BufferPool> BUFFER_POOLS;
 495 
 496         static {
 497             ArrayList<BufferPool> bufferPools = new ArrayList<>(3);
 498             bufferPools.add(SharedSecrets.getJavaNioAccess().getDirectBufferPool());
 499             bufferPools.add(FileChannelImpl.getMappedBufferPool());
 500             bufferPools.add(FileChannelImpl.getSyncMappedBufferPool());
 501 
 502             BUFFER_POOLS = Collections.unmodifiableList(bufferPools);
 503         }