@Override
    public Buffer allocate() {
        return allocate(this.pageSize);
    }
@Test
    public void testDoubleRelease() throws Exception {
        final PooledBufferAllocatorImpl allocator = new PooledBufferAllocatorImpl(4096);
        final Buffer buffer = allocator.allocate(10000);
        buffer.release();
        buffer.release();  // To printStackTrace of the first release, but no errors.
    }