builder.setFileAccessMode(EnumFileAccessMode.MAPPED_RANDOM_FILE_ACCESS);
builder.setMaxBufferSize(8 * 1024);
builder.setMaxNumberOfBuffer(32);
builder.setPathName(TestConstant.getWinRamDiskRuntimeDir());
builder.setProxyMode(true);
final IFilePersistence filePersistence = builder.build();
final IExclusiveDataAccessSession session = filePersistence
.createExclusiveDataAccessSession();
final IInstanceFactory instancefactory = session.getInstanceFactory();
session.open();
final PHashMap map = PHashMap.newInstance(instancefactory);