Examples of java.nio.MappedByteBuffer.load()

java.nio.MappedByteBuffer.load()
Loads this buffer's content into physical memory.
This method makes a best effort to ensure that, when it returns, this buffer's content is resident in physical memory. Invoking this method may cause some number of page faults and I/O operations to occur.
@return This buffer

        FileInputStream fileInputStream = new FileInputStream(tmpFile);
        FileChannel fileChannelRead = fileInputStream.getChannel();
        MappedByteBuffer mmbRead = fileChannelRead.map(MapMode.READ_ONLY, 0,
                fileChannelRead.size());
        
        assertEquals(mmbRead, mmbRead.load());


        RandomAccessFile randomFile = new RandomAccessFile(tmpFile, "rw");
        FileChannel fileChannelReadWrite = randomFile.getChannel();
        MappedByteBuffer mmbReadWrite = fileChannelReadWrite.map(
                FileChannel.MapMode.READ_WRITE, 0, fileChannelReadWrite.size());

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        RandomAccessFile randomFile = new RandomAccessFile(tmpFile, "rw");
        FileChannel fileChannelReadWrite = randomFile.getChannel();
        MappedByteBuffer mmbReadWrite = fileChannelReadWrite.map(
                FileChannel.MapMode.READ_WRITE, 0, fileChannelReadWrite.size());


        assertEquals(mmbReadWrite, mmbReadWrite.load());
        
        fileChannelRead.close();
        fileChannelReadWrite.close();
    }

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        t = System.currentTimeMillis();
        FileChannel channel = raf.getChannel();
        r = new Random(0);
        MappedByteBuffer byteBuf3 = channel.map(FileChannel.MapMode.READ_ONLY, 0, raf.length());


        byteBuf3.load();




        for (int i = 0; i < NUNBER_OF_READS; i++) {
            int pos = r.nextInt(FILE_SIZE - BUFFER_SIZE);

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                            synchronized (lock) {
                                bb = fc.map(FileChannel.MapMode.READ_WRITE, pos, BLOCK_SIZE);
                                System.out.println(ti + ": mapped");
                            }
                            synchronized (lock) {
                                bb.load();
                                System.out.println(msg + " loaded");
                            }
                            for (int k = 0, n = bb.limit(); k < n; k++) {
                                bb.put(k, (byte)(bb.get(k) + 65));
                            }

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        FileInputStream fileInputStream = new FileInputStream(tmpFile);
        FileChannel fileChannelRead = fileInputStream.getChannel();
        MappedByteBuffer mmbRead = fileChannelRead.map(MapMode.READ_ONLY, 0,
                fileChannelRead.size());
        
        assertEquals(mmbRead, mmbRead.load());


        RandomAccessFile randomFile = new RandomAccessFile(tmpFile, "rw");
        FileChannel fileChannelReadWrite = randomFile.getChannel();
        MappedByteBuffer mmbReadWrite = fileChannelReadWrite.map(
                FileChannel.MapMode.READ_WRITE, 0, fileChannelReadWrite.size());

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        RandomAccessFile randomFile = new RandomAccessFile(tmpFile, "rw");
        FileChannel fileChannelReadWrite = randomFile.getChannel();
        MappedByteBuffer mmbReadWrite = fileChannelReadWrite.map(
                FileChannel.MapMode.READ_WRITE, 0, fileChannelReadWrite.size());


        assertEquals(mmbReadWrite, mmbReadWrite.load());
        
        fileChannelRead.close();
        fileChannelReadWrite.close();
    }

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                        final MappedByteBuffer compressedBb = cFileChannel.map(
                                FileChannel.MapMode.READ_ONLY, 0, size);


                        if (entry.type == CacheType.HEAP) {
                            compressedBb.load();
                        }
                        
                        entry.compressedBb = compressedBb;
                    } finally {
                        cFis.close();

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                        final MappedByteBuffer compressedBb = cFileChannel.map(
                                FileChannel.MapMode.READ_ONLY, 0, size);


                        if (entry.type == CacheType.HEAP) {
                            compressedBb.load();
                        }
                        
                        entry.compressedBb = compressedBb;
                    } finally {
                        cFis.close();

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      size = fileChannel.size();


      // get byte[] lineBytes from features file
      MappedByteBuffer mappedByteBuffer;
      mappedByteBuffer = fileChannel.map(MapMode.READ_ONLY, startByte, numBytes);
      mappedByteBuffer.load();
      mappedByteBuffer.get(lineBytes, 0, numBytes);
      fileChannel.close();  // JVM garbage collector does not close these, so force closure
      fileInputStream.close();  // JVM garbage collector does not close these, so force closure


      isFailedInitialization = false;

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      // read portion of file into bytes[]
      try {
        MappedByteBuffer mappedByteBuffer = fileChannel.map(
                         MapMode.READ_ONLY, runningNumBytesRead, thisNumBytesRead);
        mappedByteBuffer.load();
        mappedByteBuffer.get(bytes, 0, thisNumBytesRead);
      } catch (Exception e) {
        // warn and abort
        WError.showError( "Unable to read file " + featuresFile + ".",
                          "BEViewer file read error", e);

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